CSS FY21-JAX-0013_Vision Measurement System.pdf

CSS FY21-JAX-0013

CALIBRATION STANDARDS SPECIFICATION

PROCUREMENT PACKAGE

VISION MEASUREMENT SYSTEM

DISTRIBUTION STATEMENT A: APPROVED FOR PUBLIC RELEASE, DISTRIBUTION IS UNLIMITED.

DEPARTMENT OF THE NAVY

METROLOGY AND CALIBRATION PROGRAM

FEBRUARY 2023

CALIBRATION STANDARDS SPECIFICATION

PROCUREMENT PACKAGE

VISION MEASUREMENT SYSTEM

Prepared for:

NAVAIR Metrology and Calibration (METCAL) Program

Prepared by:

Essence Sugar

METCAL Branch Fleet Readiness Center Southeast Enterprise Ave, Bldg. 6G 1st Floor

Jacksonville FL 32212-0016

DEPARTMENT OF THE NAVY

METROLOGY AND CALIBRATION PROGRAM

VISION MEASUREMENT SYSTEM CSS FY21-JAX-0013

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Table of Contents

1.0 SCOPE

1.1 General

1.2 Usage

1.3 Design activity

1.4 Enclosure

1.5 Color

2.0 APPLICABLE DOCUMENTS

2.1 Reference documents

2.2 Order of precedence

3.0 REQUIREMENTS

3.1 Performance requirements

3.1.1 Horizontal travel

3.1.2 Vertical travel

3.1.3 Angle

3.1.4 Accuracy

3.1.5 Resolution

3.1.6 Edge detection

3.1.7 Auto-focus

3.1.8 Image quality

3.1.9 Telecentricity

3.1.10 Field of view

3.1.11 Weight capacity

3.1.12 Worktable accessories

3.2 Equipment components

3.2.1 Interchangeability

3.2.2 Restricted materials

3.2.2.1 Material restricted for Navy use

3.2.2.2 Other restricted materials and gases

3.2.2.2.1 Organic materials

3.2.2.2.2 Flammable materials

3.2.2.2.3 Explosive materials

3.2.2.2.4 Carcinogens

3.2.2.2.5 Helium

3.2.2.3 Combination of materials

3.3 Operator adjustments and controls

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3.3.1 Operator adjustments

3.3.2 Operator controls

3.4 Internal cooling

3.5 Self-test capability

3.6 Safety

3.7 Digital interface requirements

3.8 Electrical power source

3.8.1 Power consumption

3.8.2 Nominal power source

3.8.2.1 Steady-state conditions

3.8.2.2 Transient-state conditions

3.8.2.3 Interruption of power source

3.8.2.4 DC internal power source

3.8.2.4.1 Battery restrictions

3.8.2.4.1.1 Lithium batteries

3.8.3 Electrical power connections

3.8.3.1 Input power cable

3.8.3.2 Input power switch

3.8.3.3 Excessive current drain protection

3.8.3.4 Indicators

3.9 Enclosure physical characteristics

3.9.1 Mechanical stability

3.9.2 Enclosure requirements

3.9.2.1 Cover

3.9.2.2 Accessory stowage

3.9.2.3 Corners

3.9.2.4 Connections and controls

3.9.2.5 Chassis fasteners

3.10 Marking and identification

3.10.1 Marking

3.10.2 Reference designations

3.10.3 Warning markings

3.10.4 Equipment identification

3.10.4.1 Identification plate

3.10.4.2 Identification plate, material

3.10.4.3 Identification plate, marking

3.10.4.4 Reusable pouch or container

3.10.4.5 Item unique identification (IUID)

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3.11 Shock, functional

3.12 Environmental requirements

3.12.1 Anti-corrosion

3.12.2 Dust exposure

3.12.3 Acoustic noise

3.13 Calibration interval

3.14 Maintainability

3.14.1 Fault isolation

3.14.2 Preventive maintenance

3.14.3 Maintenance provisions

1.0 SCOPE

1.1 General. This document specifies the minimum requirements for a Vision Measurement System. This equipment should be of commercial design, and is intended to be used by Navy personnel in shore-based laboratories. The equipment will be used to calibrate test instruments with dimensional and/or angular measurement requirements. For the purpose of this Calibration Standards Specification (CSS), the Vision Measurement System shall be herein referred to as the VMS.

1.2 Usage. Equipment covered by this CSS is intended for use in controlled environments in which Military equipment is operated. The requirements of this CSS are tailored to the intended use of the equipment.

1.3 Design activity. The VMS is specific to Navy calibration

requirements. Maximum use of commercial-off-the-shelf items is desired. Should COTS items be unavailable, the overall product design, packaging, and life-cycle configuration management is under the cognizance of the Navy. The Cognizant Design Activity (CDA) for documentation and configuration management shall be the NAVAIR METCAL Program Office, Team 3.

1.4 Enclosure. For the purpose of this CSS, the enclosure refers to the case for each individual major component. The enclosure provides protection for the individual system component during storage, handling, and use.

1.5 Color. The color of the equipment and the transit cases shall be the color normally provided by the manufacturer but shall not be green, magenta, or red.

2.0 APPLICABLE DOCUMENTS

2.1 Reference documents. The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issues of these documents shall be those in effect on the date of this solicitation.

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-PRF-28800G - Test Equipment for use with Electrical and Electronic Equipment, General Specification for

(Copies of DoD specifications are available online at http://assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)

http://assist.daps.dla.mil/quicksearch/

DEPARTMENT OF DEFENSE STANDARDS

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

(Copies of DoD Standards are available online at http://assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)

2.2 Order of precedence. In the event of conflict between the text of this

CSS and the references cited herein, the text of this specification shall take precedence. Nothing in this CSS, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3.0 REQUIREMENTS

3.1 Performance requirements. The VMS shall provide the performance capabilities as listed below.

3.1.1 Horizontal travel. The VMS worktable shall allow horizontal travel and measurement through a minimum of eight inches.

3.1.2 Vertical travel. The VMS worktable shall allow vertical travel and measurement through four inches.

3.1.3 Angle. The VMS must be capable of measurements throughout a 360-degree range.

3.1.4 Accuracy. Horizontal and vertical travel measurements displayed by the VMS measurement software shall be accurate to ±50 micro inches or better. Angle measurements displayed by the VMS measurement software shall be accurate to ±1 arc minutes or better.

3.1.5 Resolution. The VMS measurement software shall provide a resolution of 10 micro inches or better for horizontal and vertical travel. Angle measurements require a resolution of 30 arc seconds.

3.1.6 CAD Files. The VMS measurement software shall allow CAD files to be uploaded and utilized to determine in-tolerance conditions of the item measured.

3.1.7 Edge detection. The VMS measurement software shall utilize edge detection capability to perform measurements.

http://assist.daps.dla.mil/quicksearch/

3.1.8 View. The VMS shall utilize a camera oriented horizontally to view parts measured.

3.1.9 Auto-focus. The VMS camera shall be capable of automatically focusing on the component feature selected by the user.

3.1.10 Image quality. The VMS image shall utilize 256-level gray scale.

3.1.11 Telecentricity. The VMS optical system shall be fully telecentric.

3.1.12 Field of view. The VMS magnification must provide a field of view range from

0.5 inches to 2 inches at a minimum.

3.1.13 Weight capacity. The VMS worktable shall have a weight capacity of at least 50 pounds.

3.1.14 Worktable accessories. The VMS worktable accessories shall include a vise, V-block, and center supports. At a minimum, one of each worktable accessory available for the model shall be provided with the VMS.

3.2 Equipment components. Parts, materials, and process shall be as specified below in 3.2.1 Interchangeability through 3.2.2.3 Combination of materials.

3.2.1 Interchangeability. A model number shall be designated for all units provided. All units and the replaceable assemblies, subassemblies, and parts comprising the unit shall be interchangeable on a noninterference basis.

3.2.2 Restricted materials. Restricted materials shall be as specified below in 3.2.2.1 Material restricted for Navy use through 3.2.2.3 Combination of materials.

3.2.2.1 Material restricted for Navy use. The materials and parts specified in a through c shall not be used in equipment for the Navy unless otherwise specified. An exception is made for small lithium batteries used for memory backup as specified in 3.8.2.4.1.1 Lithium batteries for lithium battery types approved for use.

a. Mercury, including mercury batteries

b. Radioactive material

c. Lithium electrochemical cells

3.2.2.2 Other restricted materials and gases. Test equipment shall not contain materials that promote the premature failure of the equipment or that present a health hazard under normal use or storage conditions as specified below in

3.2.2.2.1 Organic materials through 3.2.2.2.5 Helium.

3.2.2.2.1 Organic materials. Test equipment shall not contain materials prone to organic decay or that act as a nutrient for the growth of multi-celled organisms.

3.2.2.2.2 Flammable materials. Test equipment shall not contain materials that ignite into flames at operating or storage temperatures.

3.2.2.2.3 Explosive materials. Test equipment shall not contain materials that explode at operating or storage temperatures.

3.2.2.2.4 Carcinogens. Certain chemicals have been identified in the Occupational Safety and Health Act (OSHA) as cancer-producing substances (carcinogens). Materials that might contain these chemicals shall not be used unless specifically required and approved by the procuring Navy activity.

3.2.2.2.5 Helium. Helium shall not be used as pressurizing gas in sealed units containing electron tubes. When necessary to use helium for leak detection purposes, exposure shall be limited to the time necessary for the test, followed by thorough purging.

3.2.2.3 Combination of materials. The equipment shall contain no combination of materials that cause deterioration of any material contained in the equipment in normal storage and operating conditions throughout normal life expectancy of the equipment.

3.3 Operator adjustments and controls. Operator adjustments and controls shall be as specified below in 3.3.1 Operator adjustments and 3.3.2 Operator controls.

3.3.1 Operator adjustments. The equipment shall include built-in adjustments or compensating devices for any function or parameter that would exceed the specified tolerance within the calibration interval defined in 3.13 Calibration interval. Under all specified service conditions, the variation of any adjustment or control shall produce the desired control action to bring the equipment within tolerance.

3.3.2 Operator controls. Operating controls and indicators shall be readily accessible to the operator from the front of the equipment. The readings presented on the controls and indicators shall be available to the operator without conversion or calculation.

3.4 Internal cooling. The equipment shall be capable of operating without interruption for at least 8 hours at the maximum operating temperature as specified in this CSS without overheating, losing power or otherwise exhibiting failure.

3.5 Self-test capability. The VMS shall perform an automatic diagnostic self-test at startup. The self-test shall determine operational readiness and isolate faulty modules. The information provided by the self-test shall indicate operational readiness. If failure occurs, the associated lowest replaceable unit (LRU) causing the malfunction shall be identified.

3.6 Safety. All accessible surfaces of the equipment must be grounded for safety. The power cable shall incorporate an equipment grounding conductor. If applicable, disconnecting the safety ground shall also shut off the power for drawer assemblies.

3.7 Digital interface requirements. The digital interface shall have the programmable capability to control each device function including all ranges, modes, and levels. The digital interface shall support control of the device without the need for any proprietary drivers or software.

The syntax and style of programming commands shall conform to the Standard Commands for Programmable Instruments (SCPI).

The unit shall be capable of functioning as a controller to perform self-calibration utilizing the digital interface to communicate with an external calibration reference standard. Primary power control and other non-measurement functions need not be controllable through the digital interface.

3.8 Electrical power source. The equipment shall operate from the input power conditions specified in 3.8.1 Power consumption through

3.8.2.4.1.1 Lithium Batteries. When multiple power source

requirements are invoked, the equipment shall operate within each required range without changing manually operated devices such as tapped transformers (variable setting transformers) and other similar devices for compensation. When multiple power source requirements are invoked, all selectable power setting controls shall be externally accessible.

3.8.1 Power consumption. The maximum power for operation of a VMS component requiring an external single-phase 120 Vrms power source shall not exceed 1500 watts.

3.8.2 Nominal power source. The equipment shall operate at 120 Vrms single-phase 60 Hz source (refer to MIL-PRF-28800G Table 1).

Equipment shall conform to specified performance and accuracy requirements when operated from the external source.

3.8.2.1 Steady-state conditions. The performance and accuracy of the equipment shall not be adversely affected when operated under any combination of conditions a through c. Tolerance values are derived from, and referenced to, the nominal values specified for voltage and frequency in 3.8.2 Nominal power source above. For definitions of voltage waveform factor and harmonics, see MIL-PRF- 28800G paragraph 6.6.12a Voltage waveform deviation factor and 6.6.12b Harmonics.

a. The steady-state voltage-tolerance shall be ±10%.

b. The steady-state frequency-tolerance shall be ±5%.

c. The deviations in waveform characteristics shall be as in 1 through 4.

1. Waveform deviation factor of ±10% or less

2. Total harmonics of ±10% or less

3. Individual harmonics of ±5% or less

4. Crest factor of 1.27 to 1.56

3.8.2.2 Transient-state conditions. Operation of the equipment during voltage and frequency transients shall be in accordance with a and b for transients that recover to within the steady-state tolerance band within 500 ms. the equipment performance may be impaired during the transient. Transient values are derived from, and referenced to, the nominal values specified for voltage and frequency.

a. Voltage transients within the range of ±10% to ±30% shall not cause the operation of the equipment to be impaired for longer than 30 seconds following the transient and not cause loss of information stored in a volatile memory. Testing shall be in accordance with MIL-PRF- 28800G paragraph 4.5.5.6.3 Voltage-transient test.

b. Frequency transients within the range of ±5% to ±10% shall not cause the operation of the equipment to be impaired for longer than 30 seconds following the transient and not cause loss of information stored in a volatile memory. Testing shall be in accordance with MIL-PRF- 28800G paragraph

4.5.5.6.4 Frequency-transient test.

THIS UNIT CONTAINS LITHIUM BATTERIES

Battery Manufacturer:

Battery Part Number:

3.8.2.3 Interruption of power source. Voltage or frequency interruptions shall not cause damage to the equipment. A power source interruption is when the voltage falls in the range of 0 to 70% of nominal or frequency falls in the range of 0 to 90% of nominal. Equipment performance is not required during interruption of the power source.

After power interruptions of any duration, the equipment shall automatically resume operation at either the last operating condition before interruption, or a default power-up condition.

3.8.2.4 DC internal power source. The equipment shall be designed to operate from an external power source only. Internal power sources shall only be used for memory backup as specified below.

3.8.2.4.1 Battery restrictions. For Navy applications, the use of lithium and mercury batteries is restricted and shall not be used in equipment. An exception is made for small lithium batteries used for memory backup as specified below in 3.8.2.4.1.1 Lithium batteries. The equipment shall incorporate safety precautions of UL1950 and a label containing the following caution and information shall be affixed to the outside of the unit, as applicable for lithium batteries:

3.8.2.4.1.1 Lithium batteries. Commercial UL approved equipment that contains lithium batteries (size double A or button cell type) used for memory backup are approved for use under a general blanket approval waiver. Lithium or re- chargeable batteries larger than the type specified above requires a separate approval. Tadiran liquid cathode batteries, SO2 (sulfur dioxide) batteries or lithium vinyl chloride “liquid cathode” batteries are strictly prohibited. For the purpose of this specification, a lithium (size double A or button cell type) battery as described above is approved.

3.8.3 Electrical power connections. The requirements specified in 3.8.3.1 Input power cable through 3.8.3.4 Indicators shall apply to equipment rated at 10A rms, or less. The equipment shall operate with a ground at the primary power source on either or neither side of the single-phase input power line.

3.8.3.1 Input power cable. The input power cable shall be a detachable power cable normally provided by the manufacturer.

3.8.3.2 Input power switch. The operator shall be able to energize the equipment from the front panel. A standby capability may be incorporated to activate and deactivate the equipment. If such a capability is provided, suitable warnings shall be placed in the operating and service manuals and on the equipment to warn the operator of possible shock hazards during servicing, due to partially activated power supplies.

3.8.3.3 Excessive current drain protection. An automated safety mechanism (circuit breaker/fuse) shall be incorporated to automatically disconnect the equipment in the event of current being drawn that is in excess of the equipment rating. The mechanism shall be available from the control panel or an exterior panel.

3.8.3.4 Indicators. Visual indication shall be provided on the front panel to indicate when the equipment is energized.

3.9 Enclosure physical characteristics. The physical characteristics of the equipment shall be as specified in 3.9.1 Mechanical stability through 3.9.2.5 Chassis fasteners. The equipment may be contained in up to three freestanding enclosures that are in accordance with the specifications below. Each enclosure must be equipped such that necessary connections can be made or broken with minimal tools and without degrading operation and reliability of the equipment

3.9.1 Mechanical stability. The equipment shall be designed to preclude tipping during normal handling and operation. Testing shall be in accordance with MIL- PRF-28800G paragraph 4.5.7.4 Mechanical stability test.

3.9.2 Enclosure requirements. The VMS enclosure requirements shall be as specified in 3.9.2.1 Cover through 3.9.2.5 Chassis fasteners.

3.9.2.1 Cover. The enclosure shall have a cover. The enclosure and cover interface shall have a gasket or offset lap seam to prevent entry of dirt or spray-type moisture or contaminates during shipping or storage.

3.9.2.2 Accessory stowage. Enclosures that have provisions for stowage of accessories shall be contained in a manner that prevents damage to the accessories or equipment during transit. Stowed items shall be available without disturbing enclosure seams.

3.9.2.3 Corners. All corners shall be designed to preclude injury to personnel or damage to material. All corners shall be adequately reinforced to protect the instrument from damage during shipping, handling and storage.

3.9.2.4 Connections and controls. All external electrical connections (except power connections) and operating controls shall be on the control panel. Electrical power connections shall be on the rear.

3.9.2.5 Chassis fasteners. The chassis shall be securely fastened within the enclosure conforming to the maintainability requirements of 3.14.3 Maintenance provisions.

3.10 Marking and identification. Marking and identification of test equipment shall be as specified below in 3.10.1 Marking through

3.10.4.5 Item Unique identification (IUID).

3.10.1 Marking. Test equipment shall be marked in a manner that does not adversely affect safety or performance.

3.10.2 Reference designations. Reference designations shall be used to identify each part for its particular circuit application.

Subminiaturized and non-repairable assemblies need not be marked with reference designations.

3.10.3 Warning markings. Warning labels must clearly indicate the type, location, and severity of potential hazards and shall be placed near the danger point. Warning labels for circuits more than 500 Vdc or Vrms shall clearly state DANGER HIGH VOLTAGE and include the maximum voltage.

3.10.4 Equipment identification. All equipment shall be identified with the items specified in a through d.

a. Manufacture name

b. Equipment model number with installed options

c. Equipment nomenclature

d. Serial number

3.10.4.1 Identification plate. An equipment identification plate shall be affixed to the test equipment enclosure. The identification plate shall be permanently affixed. The identification plate shall contain the information provided in a through f.

a. Equipment model number with installed options

b. Equipment nomenclature

c. Manufacturer CAGE

d. Configuration serial number

e. Case X of Y, if multiple cases are used

f. Consists of: all components (excluding cables and adapters) comprising the equipment configuration.

1. Component nomenclature

2. Component part number

3.10.4.2 Identification plate, material. The following materials with minimum thickness of 1/32 inch are recommended.

a. Brass

b. Corrosion resistant steel

c. Aluminum alloy

3.10.4.3 Identification plate, marking. The plate background color shall be black. It shall have a minimum character size of 1/8 inch. All characters shall be permanent using best commercial practices for laser engraving, etching, or photosensitive marking of material.

3.10.4.4 Reusable pouch or container. If a reusable pouch or container is provided, containers shall be marked "accessories for use with" (test equipment nomenclature or model number), or "maintenance aids for use with" (test equipment nomenclature or model number), as applicable.

3.10.4.5 Item unique identification (IUID). DFARS clause 252-211.7003 is invoked. A two dimensional Item Unique Identification (IUID) data matrix conforming to MIL-STD-130 shall be included on the identification plate.

3.11 Shock, functional. The VMS shall conform to the specified performance and accuracy requirements after being subjected to the 30g half-sine shock test of MIL-PRF-28800G paragraph 4.5.5.4.1 Functional shock test.

3.12 Environmental requirements. The VMS shall conform to the specified performance and accuracy while being stored or operated at temperatures within 63°F to 73°F and relative humidity 20% to 45%.

3.12.1 Anti-corrosion. The equipment component surfaces exposed to atmosphere shall have an anti-corrosion treatment to provide corrosion protection throughout normal life expectancy of the equipment.

3.12.2 Dust exposure. The equipment enclosure with cover shall provide protection for the VMS components from dust exposure during operation and storage.

3.12.3 Acoustic noise. The VMS shall not produce noise levels greater than 70 dBA sound pressure level (SPL) as measured at the typical positions of the operator and bystanders.

3.13 Calibration interval. The minimum interval between calibrations shall be 12 months. At the end of this interval, a minimum of 85 percent of the units shall remain in tolerance.

3.14 Maintainability. Maintainability shall be as specified below in 3.14.1 Fault isolation through 3.14.3 Maintenance Provisions.

3.14.1 Fault isolation. The design of the equipment shall permit isolation of faults, and repair down to the component item or lowest replaceable unit.

3.14.2 Preventive maintenance. Preventive maintenance shall not require more than 15 minutes per a 30-day period. Preventive maintenance shall not require breaking of the equipment seams where calibration seals would normally be placed.

3.14.3 Maintenance provisions. Equipment shall be as specified in a through h to facilitate maintenance:

a. Accessibility for maintenance. The equipment shall be designed to ensure that any necessary maintenance access can be accomplished utilizing non-proprietary tools. The equipment shall be constructed so that no damage to any component shall occur and no permanent distortion to any structural member shall be caused during maintenance and calibration (performance verification and adjustment/alignment).

b. Maintenance and calibration aids. If required, circuit board extenders, special adapters, special tools, and patch or interface cables required for maintenance or calibration shall be provided. They shall be identified as a set with a unique part number. Stowage shall be in a reusable pouch or container.

c. Accessibility for repair. The equipment shall be designed so that repair can be performed without removing other hardwired subassemblies or components. There shall be no need to unsolder cables or interconnecting wiring.

Assemblies designed primarily to distribute power and signals to other components are excluded from this requirement.

d. Adjustment/Alignment. The equipment shall be provided with any necessary instructions/software (to include programming commands, if not explicitly company proprietary and non-releasable to the Navy or any other commercial customer) needed to adjust/align the equipment so that the equipment meets its performance specifications after repair or due to the equipment failing performance verification.

e. Accessibility for adjustment. The equipment shall permit adjustments of components that are changeable without removing any component, printed circuit cards, or subassembly. The use of extender cards is permitted.

(Example: Access will be provided to potentiometers that control the accuracy of specified parameters.)

f. Alignment instructions/software. If the equipment has alignment data stored in memory (example: EEPROM, data files, DACs, etc.) that is necessary for the equipment to meet its performance specification and modification of this alignment data is necessary after repair or a calibration failure, the equipment shall be designed and information provided so that the alignment can be performed by the Navy. The alignment process shall be able to use existing Navy calibration standards that meet all necessary minimum performance requirements to satisfy a traceable calibration.

g. This alignment information provided shall include any necessary software (preferably software commands) usable via any allowable communications interface specified in this document, e.g. IEEE-488 data bus, and usage instructions required to perform an alignment (to include any necessary setup instructions/software commands to put the equipment into the alignment mode, instructions/software commands necessary to gather new alignment data, along with any software algorithms required to format the alignment data into the appropriate data required by the equipment, and any instructions/software commands necessary to reprogram the equipment with the new alignment data).

h. If software is required for the alignment process, preference will be given to software that uses current Navy calibration standards without modification (or the modification must be able to be performed by the Navy). Alternatively, if the software will not use Navy calibration standards without modification and modification by the Navy is not possible, preference will be given if the manufacturer supplies the explicit instructions/software commands and any necessary algorithms for the Navy to develop its own organic alignment support using existing Navy calibration standards.