BQ_013_53711-5808784M.PDF

UNCLASSIFIED

53711-5808784M

14 June 2016

UNCLASSIFIED

CRITICAL ITEM PERFORMANCE SPECIFICATION

FOR

DT-513D/F HYDROPHONE

G. Blasdell R. Rego 02 December 2003

PREPARED BY APPROVED BY DATE

DISTRIBUTION STATEMENT D: Distribution authorized to the Department of Defense and U.S. DoD contractors only: Critical Technology; 02 DEC 2003. Other requests for this document should be referred to: Naval Undersea Warfare Center, Newport Division.

i

CRITICAL ITEM PERFORMANCE SPECIFICATION

FOR DT-513D/F HYDROPHONE

REVISION/CHANGE RECORD

ECP SCN REV DATE DESCRIPTION APPROVED

- Original issue

A

B

C 19 MAR 90 DT-513B revision C. Clark

NSWC

16-98NE006 D 15 JUN 98 DT-513C/D/E revision reflects three variations of connectorized cabling and one frequency response variation.

Revision also puts document into

WORD 6.0 & PDF formats suitable for on-line distribution.

J. Guigli

NUWC 2163

2199NE009 1 09 SEP 99 Corrects technical errors in connector pin assignments. J. Guigli

NUWC 2114

0200NE002 2 11 NOV 99 Corrects paragraphs 2.2.1, 3.3.1.1.1, 3.3.1.1.2, and 3.3.1.1.3 J. Guigli

NUWC 2114

2001RE4594-00-

01R1

3 22 AUG 01 Modify to include "F" variant hydrophone, identify newer test equipment for measurements, and Modify table 1, resistance measurements.

S. Cohick

NUWC 2131

2103NE014 E 13 JUN 03 Add new figure 2, renumber references, update all to include

“F”, remove references to earlier models.

R. Rego

NUWC 2131

3103NE020 1 E 02 DEC 03 Deletes references to specific drawings and corrects minor technical errors.

R. Rego

NUWC 2131

3103NE020 F 02 DEC 03 Incorporates SCN-1 as REV F R. Rego

NUWC 2131

0105NS001R2 1 F 04 NOV 04 Revise production control and testing R. Rego

NUWC 1516

0305NE001 G 04 DEC 06 Incorporates SCN-1 as REV G R. J. Rego

NUWC 1516

6207NE027 H 16 JUL 07 Corrects typo in cable length paragraph 3.1 R. J. Rego

NUWC 1516

712NE007 J 03 NOV 2011 Revises First Article Testing Responsibilities to Government and other changes

E. A. McLaughlin

NUWC 1535

1014NE008 K 29 OCT 2013 Correct Figure 3 y-axis label E. A. McLaughlin

NUWC 1535

ii

CRITICAL ITEM PERFORMANCE SPECIFICATION

FOR DT-513D/F HYDROPHONE

REVISION/CHANGE RECORD (CONTINUED)

ECP SCN REV DATE DESCRIPTION APPROVED

4914NE031R3 L 29 Oct 2015 Remove DT -513E, add noise specification and other changes.

E. A. McLaughlin

NUWC 1535

9716NE063 M 14 Jun 2016 Update Transducer/Hydrophone Certification Carf E. A. McLaughlin

NUWC 1535

53711-5808784 M

Title Page ....................................................................................................... NA

Record of Changes Page ................................................................................ i

Contents ......................................................................................................... ii

Lists of Illustrations and Tables ..................................................................... v

1.0 SCOPE

2.0 APPLICABLE DOCUMENTS

2.1 Government Documents

2.2 Non-Government Documents

2.3 Order of Precedence

3.0 REQUIREMENTS

3.1 Critical Item definition

3.2 Characteristics

3.2.1 Performance

3.2.1.1 Operating Frequency Band

3.2.1.1.1 Hydrophone Calibration

3.2.1.2 Receiving Voltage Sensitivity

3.2.1.2.1 RVS Variation

3.2.1.3 Receiving beam patterns

3.2.1.3.1 Plane perpendicular to hydrophone axis

3.2.1.4 Acceleration Response

3.2.1.5 DC Resistance

3.2.1.6 Supply Voltage Requirements

3.2.1.7 Hydrophone Self-Noise

3.2.2 Environmental Conditions

3.2.2.1 Operating Hydrostatic Pressure

3.2.2.2 Operating Temperature

3.2.2.3 Non-Operating Temperature and Pressure

3.2.2.4 Underwater Explosive shock

3.2.2.4.1 DT-513D

3.2.2.4.2 DT-513F

3.2.2.5 Vibration

3.2.2.6 Cable Pull

3.2.2.7 Cable Bond

3.3 Design and Construction

3.3.1 Workmanship

3.3.1.1 Cable and Connector

3.3.1.1.1 DT-513D

3.3.1.1.2 DT-513F

3.3.2 Identification and Marking

3.3.3 Life Requirements

4.0 QUALITY ASSURANCE

4.1 General

4.1.1 Responsibility for Inspection

4.1.2 Special Tests and Examinations

4.1.3 Inspection Plans

4.1.4 Test Data Recording

4.1.4.1 Test Data Format

4.1.4.2 Test Data Sets

4.1.4.3 Hydrophone Certification Card

4.2 Quality Conformance Inspections

4.2.1 Classification of Inspections

4.2.2 Test Requirements

4.2.3 Production Inspections

4.2.3.1 Production Dimensional and Visual

4.2.3.2 Production Noise Test

4.2.3.3 Production Cable Bond

4.2.3.4 Production Hydrostatic Pressure

4.2.3.4.1 Production DC Resistance Under Pressure

4.2.3.5 Production Receiving Voltage Sensitivity

4.2.3.6 Production DC Resistance vs. Temperature

4.2.4 Production Control Inspection

4.2.4.1 Production Control Cable Pull

4.2.4.2 Production Control Soak

4.2.4.3 Production Control Hydrostatic Pressure Cycle 5

4.2.4.3.1 Cycle 5 DC Resistance Under Pressure

4.2.4.4 Production Control Beam Patterns

4.2.5 First Article Inspection

4.2.5.1 First Article Noise Test

4.2.5.2 First Article Vibration and Acceleration Response

4.2.5.2.1 Vibration

4.2.5.2.2 First Article Acceleration Response

4.2.5.3 First Article Non-Operating Performance

4.2.5.4 First Article Electroacoustic Operating Characteristics

4.2.5.5 First Article Extended Soak

4.2.5.6 First Article Underwater Explosive Shock

4.2.5.7 First Article Post-Shock Test/Inspection

4.2.5.8 First Article Final Inspection

5.0 PACKAGING

5.1 Preservation and Packaging

6.0 NOTES

6.1 Definitions

6.1.1 Hydrophone

6.1.2 Production Lot

LIST OF ILLUSTRATIONS

Figure Page

Figure 1 Outline Drawing DT-513D/F Hydrophone

Figure 2 Schematic 30.0 dB Attenuation to Hydrophone Preamplifier

Figure 3 DT-513D/F Receiving Voltage Sensitivity and Self-Noise Chart

Figure 4 Acceleration Response - DT-513D/F Hydrophone

Figure 5 Hydrophone Certification Card (Front and Back)

LIST OF TABLES

Table Page

Table 1 DT-513D/F Receiving Voltage Sensitivity and Self-Noise

Table 2 Resistance Measurements - DT-513D/F Hydrophone

Table 3 Connector Pin Assignments - DT-513D/F Hydrophone

Table 4 Test Requirements for Production (P), Production Control (PC) First Article (FA), of

DT-513D/F Hydrophones

Table 5 Production Hydrostatic Pressure Cycles

Table 6 First Article Pressure/Temperature Combinations

CRITICAL ITEM PERFORMANCE SPECIFICATION

FOR

DT-513D/F HYDROPHONE

1.0 SCOPE

This specification establishes performance, manufacture and acceptance requirements for

DT-513D/F hydrophones, part of self-noise monitoring systems installed on submarines and selected classes of surface combatants. DT-513D/F hydrophones are derived directly from the

513C predecessor, which is no longer in production.

2.0 APPLICABLE DOCUMENTS

2.1 Government Documents

The following documents, of the issue in effect on the date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein. In the event of conflict between the documents referenced herein and the contents of this specification, the contents of this specification shall be considered a superseding requirement.

SPECIFICATIONS

Military

MIL-S-901 Shock Tests, H.I. (High Impact); Shipboard Machinery, Equipment and Systems; Requirement for

MIL-E-17555 Electronic and Electric Equipment, Accessories and

Provisioned Items, (Repair Parts); Packaging of

STANDARDS

Military

MIL-STD-130 Identification, Marking of U.S. Military Property

MIL-STD-167-1 Mechanical Vibrations of Shipboard Equipment (Type I -

Environmental and Type II - Internally Excited)

MIL-HDBK-2036 Preparation of Electric and Electronic Equipment

Specifications

MIL-STD-2073-1 Standard Practice for Military Packaging

HANDBOOKS

Military

MIL-HDBK-109 Statistical Procedure for Determining Validity of Suppliers'

Attributes Inspection

NAVSEA S9320- AM-PRO-030/MLDG

Underwater Cable Assembly and Encapsulated Components, Fabrication, Repair, and Installation Manual VOLUME III PLASMA SPRAY PROCEDURE

Copies of specifications, standards, drawings, and publications required by manufacturers in connection with specified procurement functions should be obtained from the contracting agency or as directed by the contracting officer.

2.2 Non-Government Documents

The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of this specification to the extent specified herein. In the event of conflict between the documents referenced herein and the contents of this specification, the contents of this specification shall be considered the superseding requirements.

STANDARDS

Industry

ANSI/ASA S1.20 Procedures for Calibration of Underwater Electroacoustic

Transducers

ASTM D1141 Standard Practice for the Preparation of Substitute Ocean

Water

ISO 9001 Quality Systems - Model for Quality Assurance in

Design/Development, Production, Installation and Servicing

Technical society and technical association specifications and standards are generally available for reference from general information handling services.

2.3 Order of Precedence

In event of conflict between any requirements of this specification and requirements of any drawing, specification, document, or standard referenced herein, this specification shall supersede. In event of conflict between two or more drawings, specifications, documents, or standards, the procuring activity shall provide resolution in accordance with standard practice.

The Contractor shall notify the procuring activity of each apparent instance of conflicting requirements.

3.0 REQUIREMENTS

3.1 Critical Item definition

The hydrophone consists of a 3.25 inch long line array of lead zirconate titanate (Navy Type I) ceramic elements, a preamplifier circuit card assembly encapsulated in potting compound that is and has a molded neoprene cover ('boot') with integral vibration isolation webbing material, and a molded pigtail cable with a connectorized end. Figure 1 is an outline drawing of the hydrophone assembly. The D/F variants are differentiated as follows:

The DT-513D has a ten foot connectorized cable.

The DT-513F has an eight foot connectorized cable.

Figure 1 Outline Drawing DT-513D/F Hydrophone

3.2 Characteristics

3.2.1 Performance

Performance requirements herein apply to a single hydrophone assembly mounted in the mounting bracket, or mounted on a fixture that duplicates the mounting bracket. The hydrophone shall meet specified performance requirements under any/all combinations of specified operating hydrostatic pressures (3.2.2.1) and temperatures (3.2.2.2) throughout specified hydrophone life (3.3.3).

3.2.1.1 Operating Frequency Band

The operating frequency band of DT-513D/F hydrophones shall be from 64 Hz to 50 kHz.

3.2.1.1.1 Hydrophone Calibration

The hydrophone preamplifier shall contain a calibration network so that a calibration signal may be applied through the connector to verify the linearity of the hydrophone response at all operating band frequencies (3.2.1.1). A 30.0 dB attenuation is required on the calibration input line leading to the hydrophone preamplifier, as shown in Figure 2.

Figure 2 Schematic 30.0 dB Attenuation to Hydrophone Preamplifier

3.2.1.2 Receiving Voltage Sensitivity

Receiving voltage sensitivity (RVS) of DT-513D/F hydrophones shall fall within the max/min values of Table 1 when tested in four orientations of the plane (X-Y) perpendicular to the cylindrical (Z) axis of the hydrophone. The nominal DT-513D/F receive response shall be -170 dB/1V/µPa across the operating frequency band (3.2.1.1).

3.2.1.2.1 RVS Variation

Total RVS variation in the four orientations of the plane (X-Y) perpendicular to the cylindrical

(Z) axis of the hydrophone shall be not more than 2 decibels (dB) at any frequency. RVS at any operating frequency (3.2.1.1) shall vary not more than 3.0 dB under any operating range combination of hydrostatic pressure (3.2.2.1) and temperature (3.2.2.2).

Table 1 DT-513D/F Receiving Voltage Sensitivity and Self-Noise

Frequency [Hz]

Sensitivity [dB/1V/uPa]

Self-Noise [dB// V/√Hz]

Upper Limit

Desired Response

Lower Limit Upper Limit

64 0.74 -2.26 -5.26 -115.7

70 1.25 -1.75 -4.75 -115.7

80 1.93 -1.07 -4.07 -115.7

90 2.42 -0.58 -3.58 -115.7

100 2.75 -0.25 -3.25 -115.7

110 2.94 -0.06 -3.06 -115.7

120 3.01 0.01 -2.99 -115.7

130 3.00 0.00 -3.00 -115.8

140 3.00 0.00 -3.00 -115.8

150 3.00 0.00 -3.00 -115.8

160 3.00 0.00 -3.00 -115.9

170 3.00 0.00 -3.00 -115.9

180 3.00 0.00 -3.00 -116.0

190 3.00 0.00 -3.00 -116.0

200 3.00 0.00 -3.00 -116.1

210 3.00 0.00 -3.00 -116.1

220 3.00 0.00 -3.00 -116.2

230 3.00 0.00 -3.00 -116.3

240 3.00 0.00 -3.00 -116.3

250 3.00 0.00 -3.00 -116.4

260 3.00 0.00 -3.00 -116.5

270 3.00 0.00 -3.00 -116.5

280 3.00 0.00 -3.00 -116.6

290 3.00 0.00 -3.00 -116.7

300 3.00 0.00 -3.00 -116.7

400 3.00 0.00 -3.00 -117.5

500 3.00 0.00 -3.00 -118.2

600 3.00 0.00 -3.00 -118.8

700 3.00 0.00 -3.00 -119.4

800 3.00 0.00 -3.00 -120.1

900 3.00 0.00 -3.00 -120.6

1000 3.00 0.00 -3.00 -121.2

2000 3.00 0.00 -3.00 -125.6

3000 3.00 0.00 -3.00 -128.6

4000 3.00 0.00 -3.00 -131.0

5000 3.00 0.00 -3.00 -132.7

6000 3.00 0.00 -3.00 -134.1

7000 3.00 0.00 -3.00 -135.3

8000 3.00 0.00 -3.00 -136.5

9000 3.00 0.00 -3.00 -137.3

10000 3.00 0.00 -3.00 -138.2

Table 1 DT-513D/F Receiving Voltage Sensitivity and Self-Noise

(Continued)

Frequency [Hz]

Sensitivity [dB/1V/uPa]

Self-Noise [dB// V/√Hz]

Upper Limit

Desired Response

Lower Limit Upper Limit

11000 3.00 0.00 -3.00 -138.9

12000 3.00 0.00 -3.00 -139.5

13000 3.00 0.00 -3.00 -140.2

14000 3.00 0.00 -3.00 -140.8

15000 3.00 0.00 -3.00 -141.4

16000 3.00 0.00 -3.00 -142.0

17000 3.00 0.00 -3.00 -142.4

18000 3.00 0.00 -3.00 -142.8

19000 3.00 0.00 -3.00 -143.2

20000 3.00 0.00 -3.00 -143.6

21000 3.00 0.00 -3.00 -144.0

22000 3.00 0.00 -3.00 -144.3

23000 3.00 0.00 -3.00 -144.7

24000 3.00 0.00 -3.00 -145.0

25000 3.00 0.00 -3.00 -145.4

26000 3.00 0.00 -3.00 -145.6

27000 3.00 0.00 -3.00 -145.9

28000 3.00 0.00 -3.00 -146.2

29000 3.00 0.00 -3.00 -146.5

30000 3.00 0.00 -3.00 -146.8

31000 3.00 0.00 -3.00 -147.0

32000 3.00 0.00 -3.00 -147.3

33000 3.00 0.00 -3.00 -147.5

34000 3.00 0.00 -3.00 -147.8

35000 3.00 0.00 -3.00 -148.0

36000 3.00 0.00 -3.00 -148.2

37000 3.00 0.00 -3.00 -148.5

38000 3.00 0.00 -3.00 -148.7

39000 3.00 0.00 -3.00 -148.9

40000 3.00 0.00 -3.00 -149.1

41000 3.00 0.00 -3.00 -149.1

42000 3.00 0.00 -3.00 -149.1

43000 3.00 0.00 -3.00 -149.1

44000 3.00 0.00 -3.00 -149.1

45000 3.00 0.00 -3.00 -149.1

46000 2.80 -0.20 -3.20 -149.1

47000 2.60 -0.40 -3.40 -149.1

48000 2.30 -0.70 -3.70 -149.1

49000 2.00 -1.00 -4.00 -149.1

50000 1.50 -1.50 -4.50 -149.1

Figure 3 DT-513D/F Receiving Voltage Sensitivity and Self-Noise Chart

3.2.1.3 Receiving beam patterns

3.2.1.3.1 Plane perpendicular to hydrophone axis

Any receiving beam pattern in the X-Y plane shall have a total variation of not more than plus or minus 1.0 dB at single frequencies within the operating frequency band (3.2.1.1).

3.2.1.4 Acceleration Response

Acceleration response shall be determined by subjecting the hydrophone in air to 0.1g accelerations in directions perpendicular to (X-Y plane) and parallel to the Z axis, keeping the Z axis vertical. Hydrophone output in both directions shall be within shaded areas on.

Figure 4 Acceleration Response - DT-513D/F Hydrophone

3.2.1.5 DC Resistance

DC resistance, measured to Table 2 requirements, shall have corresponding values of that table.

Table 2 Resistance Measurements - DT-513D/F Hydrophone

DT-513F

VOM Test Leads

DT-513D/E

VOM Test Leads

DC Resistance

(OHMS)

Pin 2 Pin 1 Pin 2 Pin 1 263 - 356

Pin 3* Pin 1 Pin 3* Pin 1 20K

Pin 4 Pin 1 Pin 4 Pin 1 Delete

Pin 1 Pin 2 Pin 1 Pin 2 263 - 356

Pin 3* Pin 2 Pin 3* Pin 2 20K

Pin 4 Pin 2 Pin 4 Pin 2 Delete

Pin 1 Pin 4 Pin 1 Pin 4 85K - 115K

Pin 2 Pin 4 Pin 2 Pin 4 85K - 115K

Pin 3* Pin 4 Pin 3* Pin 4 125K

Pin 1 Pin 3 Pin 1 Pin 3 >20 M

Pin 2 Pin 3 Pin 2 Pin 3 >20 M

Pin 4 Pin 3 Pin 4 Pin 3 Delete

Pin 1 Shield Pin 1 Pin 5 >20 M

Pin 2 Shield Pin 2 Pin 5 >20 M

Pin 3* Shield Pin 3* Pin 5 >20 M

Pin 4 Shield Pin 4 Pin 5 >20 M

Pin 1 Ground Pin 1 Ground >20 M

Pin 2 Ground Pin 2 Ground >20 M

Pin 3* Ground Pin 3* Ground >20 M

Pin 4 Ground Pin 4 Ground >20 M

Pin 5 Ground >20 M

Note: *Measurements require the diode to be fully biased to get correct readings.

3.2.1.6 Supply Voltage Requirements

The hydrophone shall operate from a 24 VDC nominal shipboard power source supplied in accordance with Table 3. The hydrophone shall meet all of the performance specifications when the DC supply voltage is in the range of 20 VDC to 28 VDC, and carries a supply voltage rms noise of no more than 8 mV in the frequency band of 35 Hz and 100 kHz.

3.2.1.7 Hydrophone Self-Noise

The Hydrophone self-noise shall meet the requirements of Table 1. Figure 3 is a graphical representation of Table 1.

3.2.2 Environmental Conditions

Unless otherwise specified, each hydrophone shall meet performance requirements of 3.2.1 after subjection to any or all environmental conditions specified herein.

3.2.2.1 Operating Hydrostatic Pressure

Hydrophones shall meet performance requirements of 3.2.1 when submerged in water at hydrostatic pressures from 0 psig to 1000 psig.

3.2.2.2 Operating Temperature

Hydrophones shall meet performance requirements of 3.2.1 when submerged in seawater at temperatures from -3 to +40C.

3.2.2.3 Non-Operating Temperature and Pressure

Hydrophones shall be storable at air temperatures from -30C to +60C and partial vacuum as low as 8.3 pounds per square inch, absolute (psia) and subsequently meet all performance requirements (3.2.1) at all operating pressures (3.2.2.1) and temperatures (3.2.2.2).

3.2.2.4 Underwater Explosive shock

3.2.2.4.1 DT-513D

The hydrophone and cable, suspended from a floating shock platform (MIL-S-901, Figure 4), shall withstand Grade B underwater explosive shock (4.2.5.6) without physical damage, loose or free-floating parts.

3.2.2.4.2 DT-513F

The hydrophone and cable, suspended from a floating shock platform (MIL-S-901, Figure 4), shall withstand Grade A underwater explosive shock (4.2.5.6) without physical damage and subsequently meet all operational performance requirements (3.2.1).

3.2.2.5 Vibration

Hydrophone and cable shall be capable of withstanding Type I vibration of MIL-STD-167-1 in air without physical damage and subsequently meet operational performance requirements 3.2.1.

3.2.2.6 Cable Pull

The hydrophone, cable and connector assembly shall be capable of withstanding without physical damage 25 pounds of cable pull.

3.2.2.7 Cable Bond

The hydrophone to cable and the cable to connector mold bonds shall be capable of withstanding without physical damage flexure to the minimum bend radius of 1.5 inches.

3.3 Design and Construction

Hydrophone design and construction shall conform to requirements of section 2 documentation.

3.3.1 Workmanship

Hydrophone workmanship shall conform to MIL-HDBK-2036 requirements.

3.3.1.1 Cable and Connector

The hydrophone pigtail cable shall be type FSS-2 cabling integrally molded to the hydrophone, with an integrally molded platform side connector as shown in

. Cable lengths are given in subparagraphs. The cable shield shall be left floating at the hydrophone end.

3.3.1.1.1 DT-513D

The pigtail shall be 10.0 ft (+1.0 ft, -0.0 ft) measured from the end of the hydrophone over-mold to the end of the connector. The connector shall be a M24231/1-003 with non-conductive coating (NCC) applied in accordance with NAVSEA S9320-AM-PRO-030/MLDG. Pin assignments are given in. Table 3

Table 3 Connector Pin Assignments - DT-513D/F Hydrophone

Wire DT-513F DT-513D

Color Pin Signal Pin Signal

Black 1 COMMON 1 COMMON

White 2 CALIBRATE 2 CALIBRATE

Red 3 +24 VOLTS DC SUPPLY 3 +24 VOLTS DC SUPPLY

Green 4 OUTPUT SIGNAL 4 OUTPUT SIGNAL

5 SHIELD

3.3.1.1.2 DT-513F

The pigtail shall be 8.0 ft (+6.0 inch, -3.0 inch) measured from the end of the hydrophone over-mold to the end of the connector. The connector shall be a SEACON/BRANTNER #XSEE-4-

CCR. Pin assignments are given in Table 3.

3.3.2 Identification and Marking

Identification and marking shall be in accordance with MIL-STD-130.

3.3.3 Life Requirements

Hydrophone and cable assembly shall be capable of meeting without maintenance all specified requirements during operational service of at least seven years.

4.0 QUALITY ASSURANCE

4.1 General

The contractor shall provide and maintain an effective inspection and quality assurance program in accordance with ISO 9001. This Quality Assurance Program Plan shall be approved by the procuring activity prior to production. The program shall include, but not be limited to, fabrication, processing, assembly, inspection, test, maintenance, packaging, storage and delivery.

Any Quality Assurance Program Plan change which might affect the degree of assurance required by this specification or other applicable documents shall be approved in writing by the procuring agency and prior to implementation. Quality assurance terms and definitions shall be in accordance with MIL-HDBK-109.

4.1.1 Responsibility for Inspection

Unless otherwise specified, the contractor is responsible for performance of all production and production control inspection requirements specified herein. Except as otherwise specified, the contractor’s own facilities or other facilities acceptable to the Government shall be utilized. If deemed necessary to assure that supplies and services comply with specified requirements, the

Government reserves the right to perform or repeat (using its own facilities) any inspections specified herein.

4.1.2 Special Tests and Examinations

All quality assurance operations performed by the contractor will be subject to Government verification at any time. Verification may consist of any or all of the following.

a. Surveillance of operations to determine that practices, methods and procedures of the approved Quality Assurance Plan are being applied properly.

b. Production inspection to measure quality of product to be offered for acceptance.

c. Inspection of delivered products to assure compliance with all requirements specified herein, including any requirements for which detailed tests are not specified.

Deficiencies discovered by or reported to the contractor shall be corrected promptly. Failure to do so may result in suspension of acceptance until demonstration corrective action.

4.1.3 Inspection Plans

Inspection plans shall include, but not be limited to: test and lot control procedures; test schedules and sequencing; and accept/reject criteria. Inspection plans shall be prepared by the contractor prior to commencement of any inspections, including first article tests. Applicable acoustic tests shall be conducted in accordance with ANSI/ASA S1.20.

4.1.4 Test Data Recording

4.1.4.1 Test Data Format

The contractor shall maintain test data in digital and hard copy format which document results of each test specified herein and all other tests performed by the contractor for each hydrophone and components thereof.

4.1.4.2 Test Data Sets

The contractor shall provide a test data set with each production hydrophone to be delivered. Test data sets (4.1.4.2 a) shall be packed with sensor (see 4.2.5 for first article hydrophone data reporting). Data to be recorded are as follows.

a. For each production hydrophone:

DC resistance under pressure 4.2.3.4.1.

RVS (4.2.3.5) following hydrostatic pressure test 4.2.3.4.

In-band noise test 4.2.3.2.

b. Additional data for each production control hydrophone:

DC resistance under pressure in cycle 5 (4.2.4.3.1).

RVS (4.2.3.5) following hydrostatic pressure test cycle 5 (4.2.4.3).

Beam patterns 4.2.4.4

4.1.4.3 Hydrophone Certification Card

The contractor shall pack with each hydrophone to be delivered a completed hydrophone certification card Figure 5 stating that the hydrophone has been constructed in accordance with specifications and drawings and has passed all applicable inspections. The card shall be signed and dated on completion of final acceptance test.

4.2 Quality Conformance Inspections

4.2.1 Classification of Inspections

Quality conformance inspections shall be classified: production; production control (PC); and first article (FA).

4.2.2 Test Requirements

Table 4 lists specific inspections and test sequences which shall be conducted for each class of inspection. Testing and requirements of Table 4 and all test paragraphs following this paragraph shall include tests and inspections of all subparagraphs of cited test and requirement paragraphs.

Naval Undersea Warfare Center Division Newport 1176 Howell Street Newport, RI 02841-1708

Naval Undersea Warfare Center Division Newport

Attention: Transducer ISEA, Code 1535, B-113

TRANSDUCER / HYDROPHONE CERTIFICATION CARD

(DT-513___)

Manu. CAGE Code or Restoration Activity: ___ Contract Number__________________________

Serial______________________ Sensor Type _____________________________

THIS UNIT IS CERTIFIED TO BE READY FOR INSTALLATION. IT MEETS ALL CIPS REQUIREMENTS.

Responsible person Date

To Installer: If this unit meets pre- and post-installation inspection, fill out the applicable information below and send this card to the address on the reverse side

Hull Number Array/Hull Location _______________________________

Installing Activity Date Installed .

Remarks:

If the unit fails any installation requirement, keep this card with the unit. Fill out a Quality Deficiency Report (QDR) IAW NAVSEAINST 9674.2B and call the Transducer ISEA at 401-832-4931 or DSN 432-4931 for information and instructions.

NUWC/NPT 6/2016

Figure 5 Hydrophone Certification Card (Front and Back)

Table 4 Test Requirements for Production (P), Production Control (PC) First Article (FA), of DT-513D/F Hydrophones

Seq Test

Para Title

Req.

Para(s)

Resp.

G=Govt.

C=Cont.

P PC FA

4.2.3.1 Dimensional/Visual Various C C C

1 4.2.3.3 Cable Bond 3.2.2.7 C C C

2 4.2.3.4

4.2.3.4.1

Hydrostatic Pressure & DC Resistance under

Pressure

3.2.2.1 C C C

3 4.2.3.5 Receiving Voltage Sensitivity 3.2.1.2 C C C

4 4.2.3.6 DC Resistance 3.2.1.5 C C C

5 4.2.4.1 Cable Pull 3.2.2.6 C C

6 4.2.3.2 Self-noise 3.2.1.7 C C C

7 4.2.4.2 Soak 3.3.3 C C

8 4.2.4.3

4.2.4.3.1

Cycle #5 Hydrostatic Pressure & DC Resistance under Pressure

3.2.2.1 C C

9 4.2.3.5 Receiving Voltage Sensitivity 3.2.1.2 C C

10 4.2.3.6 DC Resistance 3.2.1.5 C C

11 4.2.4.4 Beam Patterns 3.2.1.3 C C

4.2.5.1 Self-noise 3.2.1.7 G

4.2.5.2.2 Acceleration Response 3.2.1.4 G

4.2.5.2.1 Vibration 3.2.2.5 G

4.2.5.3 Non-operating Performance 3.2.2.3 G

4.2.5.4 Electroacoustic Characteristics 3.2.1.1

3.2.1.2

3.2.1.3

G

4.2.5.5

4.2.3.6

Extended Soak & DC Resistance 3.3.3

3.2.1.5

G

4.2.5.6 U/W Explosive Shock 3.2.2.4 G

4.2.5.7 Post-shock Test/Inspection 3.2.1 G

4.2.5.8 Final Inspection ALL G

4.2.3 Production Inspections

Each fully assembled hydrophone with cable shall pass these production inspections successfully prior to being offered for delivery to the Government.

4.2.3.1 Production Dimensional and Visual

Hydrophone, cable, connectors, components and all associated materials shall be subjected to dimensional and visual inspections throughout the production process from receipt inspections to final product acceptance inspections. These inspections shall verify compliance with requirements of this specification document, and any government approved drawings resulting from the Physical Configuration Audit.

4.2.3.2 Production Noise Test

To ensure compliance to the requirements of 3.2.1.7, the contractor shall measure the selfnoise of each production hydrophone. A government approved, broadband RMS GO/NOGO voltage noise level may be used as the limit in lieu of spectral density. Broadband is defined to be a minimum bandwidth of the operating frequency range (3.2.1.1) of the hydrophone.

4.2.3.3 Production Cable Bond

The bond of each cable rubber jacket to hydrophone or connector rubber molding shall be subjected to a nondestructive mold bond test to verify compliance with 3.2.2.7. Firmly clamp the molded hydrophone (or connector) in a manner as to not inflict damage and bend the cable at each bond interface to a minimum bend radius of 1.5 inches. Using a probe made of rigid plastic or metal with no sharp edges or corners (screwdrivers, awls, punches, or similar tools shall not be used), probe the cable bond interfaces with the tool at a point on the outside of the bend. Repeat this procedure three more times for each bond at 90° points around the cable. Any evidence of bond separation shall be cause for rejection. This test shall be conducted prior to hydrostatic pressure testing (4.2.3.4).

4.2.3.4 Production Hydrostatic Pressure

Each hydrophone and cable shall be tested for compliance with 3.2.2.1 in a hydrostatic pressure vessel. Up to two feet of cable may protrude from the vessel. Four pressure cycles between 0 psig and 1000 psig shall be conducted in the sequence shown in Table 5. “Reset” time of 5 to 10 minutes at ambient pressure shall be allowed between cycles and after testing.

Table 5 Production Hydrostatic Pressure Cycles

CYCLE NO. DURATION AT 1000 psig

1, 2, 3 30 minutes

4 2 hours

4.2.3.4.1 Production DC Resistance Under Pressure

Hydrophone and cable assembly dc resistance shall be measured in accordance with 3.2.1.5 and

Table 2 in cycle number 4 at 1000 psig and again at 0 psig after the minimum reset time has elapsed. Criteria for hydrostatic pressure test failure shall be non-compliance with dc resistance requirements of 3.2.1.5 during testing in the vessel, or visual indication of failure after removal from the vessel.

4.2.3.5 Production Receiving Voltage Sensitivity

RVS shall be measured in accordance with ANSI S1.20 over the operating frequency band

(3.2.1.1) with the hydrophone submerged in water at ambient temperature (i.e. at any temperature between 3C and 32C) and shall meet requirements 3.2.1.2.

4.2.3.6 Production DC Resistance vs. Temperature

Total hydrophone and cable assembly dc resistance shall be measured at ambient temperature following RVS measurement to verify compliance with 3.2.1.5 and Table 2.

4.2.4 Production Control Inspection

From each hydrophone production lot (6.1.2), which successfully has passed the production inspection tests specified herein, a sample of three hydrophones shall be selected for PCI testing.

Except that for lot sizes less than 25 a sample of only one is required. PCI hydrophones shall be subjected to the PCI test sequence identified in Table III. If a sample unit fails any PC test, a second sample of three shall be tested for the failed parameter. If any additional failures occur in the 2nd sample, the entire lot shall be screened for the failed parameter, or a request deviation for the entire lot shall be submitted to the Government. PCI hydrophones shall be inspected for an

Acceptable Quality Level (AQL) of 1 percent (1%) in accordance with the inspection plan defined by MIL-HDBK-109. If PC hydrophones fail collectively to meet the 1% AQL (where failure of any one test parameter in the sequence is classified as one defect), then the production lot/sublot shall be rejected conditionally. All hydrophones in the production lot/sublot shall be retested for the failed parameter(s). Any and all identified defects on any single hydrophone shall be cause for rejection of that hydrophone and removal from the lot/sublot. Defects on individual hydrophones (production or PC) may, if practicable, be corrected. After passing a full sequence of production and production control retests, the repaired hydrophone may be returned to the production lot for delivery. Causes for all failures shall be investigated and corrective action instituted.

4.2.4.1 Production Control Cable Pull

To verify compliance with 3.2.2.6, PC hydrophone and cable assemblies shall be tested as follows. The hydrophone shall be clamped rigidly (but in a manner so as not to inflict damage) at the cable entry end cap. Five turns of cable shall be taken about a three-inch cylinder. With a yoke distributing load equally to both cylinder ends, a 25 pound force (minimum) shall be applied to the yoke five times for five minutes (minimum) each. This test shall be conducted prior to any other PC quality conformance inspections.

4.2.4.2 Production Control Soak

Each PC hydrophone and cable shall be immersed completely (except a maximum of 5 ft of the cable end may protrude) in a shallow tank of fresh (tap) water and soaked for a five day

(minimum) soak period. With each hydrophone still immersed in the soak tank, dc resistance shall be measured to verify compliance with 3.3.3 and Table 1. This soak shall precede hydrostatic pressure cycle 5 (4.2.4.3).

4.2.4.3 Production Control Hydrostatic Pressure Cycle 5

Following the soak (4.2.4.2), PC hydrophones shall be subjected to a fifth hydrostatic pressure cycle (4.2.3.4). Cycle 5 shall be pressurization to 1000 psig for 24 hours (minimum). The pressure cycle test shall be performed at ambient temperature. Following cycle 5, RVS shall be remeasured in accordance with 4.2.3.5 and compared to initial measurements.

4.2.4.3.1 Cycle 5 DC Resistance Under Pressure

DC resistance shall be measured (3.2.1.3 and Table 3) at 1000 psig and ambient temperature during cycle 5 and at 0 psig after the minimum reset time following cycle 5. Failure to meet dc resistance requirements (3.2.1.3 and Table 3) during testing, or visual indication of failure after removal from the vessel shall indicate failure of the PC hydrostatic pressure test.

4.2.4.4 Production Control Beam Patterns

After hydrostatic pressure cycle 5 (4.2.4.3), receiving beam patterns of the PC hydrophone assembly shall be tested at 1, 10, 20, 50 kHz to determine conformance with 3.2.1.3.

4.2.5 First Article Inspection

Three DT-513D/F hydrophones shall be fabricated for each procurement action for FA inspection using materials, tooling and procedures intended for production. The Government may modify this requirement in the procurement contract based on the variants to be ordered and contractor performance in prior production of DT-513D/F hydrophones. The contractor (under Government observation) shall subject each FA hydrophone first to all production (4.2.3) then to all PC

(4.2.4) inspections. FA hydrophones then shall be submitted to FA inspection tests herein in sequence specified by Table 4. These tests shall be performed by the Government unless otherwise specified.

4.2.5.1 First Article Noise Test

To verify compliance with 3.2.1.7, the hydrophone shall be tested at each frequency point shown in Table 1.

4.2.5.2 First Article Vibration and Acceleration Response

FA hydrophones, while at the extremes of temperature, shall be subjected to the minimum partial vacuum for four hours (minimum).

4.2.5.2.1 Vibration

To verify compliance with 3.2.2.5, FA hydrophone and cable assemblies shall be tested (in air) in accordance with Type I vibration requirements of MIL-STD-167-1. Hydrophone and cable shall meet all performance requirements (3.2.1) following the vibration test.

4.2.5.2.2 First Article Acceleration Response

FA hydrophone assemblies shall be tested to verify conformance with acceleration response requirements (3.2.1.4) following other PC tests.

4.2.5.3 First Article Non-Operating Performance

Non-operating performance shall be demonstrated in accordance with MIL-HDBK-2036, except temperature range shall be as specified in 3.2.2.3. FA hydrophones while at the extremes of temperature shall be subjected to the minimum partial vacuum for four hours (minimum).

4.2.5.4 First Article Electroacoustic Operating Characteristics

The Government shall test FA hydrophones electroacoustically as a function of operating pressure and temperature to verify compliance with RVS (3.2.1.2), and beam pattern (3.2.1.3) requirements. Beam patterns and RVS shall be measured over the operating frequency (3.2.1.1) at the hydrostatic pressure and water temperature combinations listed in Table 6.

Table 6 First Article Pressure/Temperature Combinations

PRESSURE

TEMPERATURE

20 psig 300 psig 600 psig 1000 psig

+3°C X X X X

+18°C X X X

+32°C X

4.2.5.5 First Article Extended Soak

Two FA hydrophones and cable assemblies shall be immersed completely (with the cable connector end closed with a cap which simulates the platform side connector) in a tank of simulated seawater (ASTM D1141) at 70± 2C and soaked for 50 continuous days (minimum).

After the soak period, with each hydrophone still in the tank, water temperature shall be lowered to 20 ± 3C and dc resistance measured for compliance with 3.3.3 and Table 1.

4.2.5.6 First Article Underwater Explosive Shock

The Government shall subject two FA hydrophones (one which was subjected to the extended soak (4.2.5.5) and one which was not) to underwater explosive shock to verify compliance with requirements of 3.2.2.4. Hydrophones shall be mounted to a fixture which simulates shipboard mounting. The test fixture shall be attached to the floating shock platform to place hydrophones at a minimum water depth of 8 ft. Four separate explosive charges, each of sixty pounds of

HBX-1, shall be detonated at a water depth of 24 ft. Horizontal standoff distances to the test fixture shall be (in order): 40 ft in a fore-aft direction; 30, 25, and 20 ft in an athwartship direction. Between detonations, the shock platform shall be lifted from the water and hydrophones visually inspected and electrically checked (dc resistance) for indication of obvious failure or degradation.

4.2.5.7 First Article Post-Shock Test/Inspection

To demonstrate compliance with 3.2.2.4.1, DT-513D FA hydrophones subjected to underwater explosive shock (4.2.5.6) shall be inspected by the Government (4.2.5.8) for loose or free-floating parts. To demonstrate compliance with 3.2.2.4.2, DT-513F FA hydrophones subjected to underwater explosive shock (4.2.5.6) shall be retested electroacoustically (4.2.5.4) by the

Government at +3C and 20, 300, 600 and 1000 psig and shall meet all operational performance requirements (3.2.1).

4.2.5.8 First Article Final Inspection

Upon completion of testing the government reserves the right to require the contractor to disassemble and visually/electrically inspect all FA hydrophones for physical or electrical damage, water leakage, deterioration and compliance with all requirements specified herein.

Notification shall be provided in sufficient time so that Government representatives may witness this disassembly and inspection.

5.0 PACKAGING

5.1 Preservation and Packaging

Hydrophones shall be preserved, packaged, packed and marked in accordance with Level A requirements of MIL-E-17555. Each hydrophone to be delivered shall be packaged in a single unit package shipping container. A hydrophone certification card (Naval Undersea Warfare Center Division Newport

Naval Undersea Warfare Center Division Newport

Attention: Transducer ISEA, Code 1535, B-113

TRANSDUCER / HYDROPHONE CERTIFICATION CARD

(DT-513___)

Manu. CAGE Code or Restoration Activity: ___ Contract Number__________________________

Serial______________________ Sensor Type _____________________________

THIS UNIT IS CERTIFIED TO BE READY FOR INSTALLATION. IT MEETS ALL CIPS REQUIREMENTS.

Responsible person Date

To Installer: If this unit meets pre- and post-installation inspection, fill out the applicable information below and send this card to the address on the reverse side

Hull Number Array/Hull Location _______________________________

Installing Activity Date Installed .

Remarks:

If the unit fails any installation requirement, keep this card with the unit. Fill out a Quality Deficiency Report (QDR) IAW NAVSEAINST 9674.2B and call the Transducer ISEA at 401-832-4931 or DSN 432-4931 for information and instructions.

NUWC/NPT 6/2016

Figure 5 Hydrophone Certification Card (Front and Back)Unpacking and repacking instructions in accordance with MIL-E-17555 shall be included with each unit package shipping container and test data set (4.1.4.2) shall be packed with each delivered hydrophone. The unit package shipping container (packed for shipment) shall meet rough handling requirements of MIL-STD-

2073-1. Each unit package shipping container shall be reusable to the extent that containers shall be capable of being opened for item inspection, reclosed for storage, unpacked for unit installation and repacked with an identical unit for at least one additional trans-shipment.

6.0 NOTES

6.1 Definitions

6.1.1 Hydrophone

“Hydrophone” or “hydrophone assembly” refers to the hydrophone, integral cable and connector.

6.1.2 Production Lot

A “production lot” shall consist of hydrophones/hydrophone assemblies produced by one manufacturer under essentially the same conditions, using identical materials, manufacturing processes and controls. A production lot is defined as a lot of up to 150 continuous production hydrophones consisting of units built to the same design, with the same materials and processes.

Because of the similarity in design of the D and F configurations, multiple delivery orders received in the same fiscal year for any of these 2 configurations, can be combined into a single lot. Continuous production is defined as production with no more than a three month break between units in the lot. Any change in design, critical materials/suppliers, or manufacturing processes shall constitute a change of production lot and may require requalification at contractor's expense or result in rejection of hydrophones. The critical materials shall be defined as any material that plays a significant role in assuring that the hydrophones meet the requirements of this document. These materials shall include, but are not limited to, the connector and cable, the hydrophone boot material, any adhesives or sealants used in the assembly of the hydrophone boot, the material used for the electromagnetic shielding, the ceramic used for the transduction elements and any materials used to make the ceramic assembly in as much as they will affect the overall acoustic response of the ceramic assembly. Any change in the design of the preamplifier shall be considered a production lot change. However, substitution of individual electronic components with components of equal specifications from a different manufacturer does not constitute a production lot change unless there is reason to suspect that the overall performance of the preamplifier will be changed; or if the substitution of one component requires a change in any other components in order to maintain compliance with this document. The Government shall be notified as soon as possible of any change in production lot (as defined above). Any interruption of production in excess of six months may terminate that production lot.