Attachment 1-Draft_Technical_Requirement.pdf

DRAFTEQUIPMENT SPECIFICATION

FOR

JSIS FOC INFRARED IMAGERS

ARNOLD ENGINEERING DEVELOPMENT COMPLEX

ARNOLD AIR FORCE BASE, TN 37389-9998

DRAFT

(This Page Intentionally Left Blank)

Table of Contents | Page 1

TABLE OF CONTENTS

1 SCOPE

2 APPLICABLE DOCUMENTS

2.1 Government Documents

2.2 Non-Government Documents

3 REQUIREMENTS

3.1 Detector Characteristics

3.2 Sensor Electronics

3.3 Performance

3.4 Optical

3.5 General

3.6 Instrument Software Control Interface

4 SUBMITTALS SUMMARY

4.1 Operation and Maintenance Manuals

4.2 Warranties

4.3 Specification Sheet

5 VERIFICATION

5.1 Vendor Testing

5.2 Government Testing

6 PACKAGING

6.1 Preparation for Delivery:

7 NOTES (NOT USED)

APPENDIX A TECHNICAL SUMMARY

1 SCOPE

This specification defines the Government’s requirements for windowing focal plane array (FPA) Infrared (IR) Imaging System with varying spectral responses. These systems will form a part of a complete multi-spectral imaging system known as the Joint Standard Instrumentation Suite (JSIS). The IR imaging systems shall be a commercially available product(s). A summary of the technical requirements for the IR imaging systems are included in Appendix A.

2 APPLICABLE DOCUMENTS

2.1 Government Documents

2.1.1 The Arnold Engineering Development Center/ Advanced Missile Signature Center "Standard Archive Format," Version 6.0, Revised: 2001 August 09.

Available at: http://media.defense.gov/2017/Jul/05/2001773313/-1/-1/1/AFD-170705-705- 005.PDFDocument A.

2.2 Non-Government Documents

2.2.1 National Electrical Manufacturers Association (NEMA) Enclosure Types Document.

Available at: https://www.nema.org/Products/Documents/nema-enclosure-types.pdf.

3 REQUIREMENTS

Provide IR imaging systems to meet the requirement of four (4) general instrument categories identified as Indium Antimonide (InSb), Indium Antimonide – Spatial (InSb-Spatial), Strained Layer Superlattice (SLS), and Strained Layer Superlattice – Spatial (SLS-Spatial). Each instrument type has specific radiometric performance requirements, while all instruments have common operational characteristics.

A custom cold filter will be provided, when required, by the Government to meet the specific radiometric requirements for integration into the detector cooler assembly by the vendor. Therefore, the radiometric specifications listed below represent imager capability in nominal filter or baseline configuration.

3.1 Detector Characteristics

3.1.1 InSb Imager

3.1.1.1 Spectral Response: The imaging system's FPA spectral response shall cover 1.5 – 5.0 μm. The government-provided filter, when required, shall be installed such that filter temperature is at or near temperature of the cooled detector. The government-provided filter, when required, will have a mean transmittance in a bandpass within the detector spectral response greater than http://media.defense.gov/2017/Jul/05/2001773313/-1/-1/1/AFD-170705-705-005.PDFDocument%20A http://media.defense.gov/2017/Jul/05/2001773313/-1/-1/1/AFD-170705-705-005.PDFDocument%20A https://www.nema.org/Products/Documents/nema-enclosure-types.pdf

80% in-band and transmittance less than or equal to 0.1% out of band at cooled detector temperature.

3.1.1.2 Detector Resolution: The FPA of the imaging system shall have at least 640 horizontal by 512 vertical pixels.

3.1.1.3 Detector Pixel Pitch: The pixel size shall be less than or equal to 25µm square.

3.1.1.4 Dynamic Range: Dynamic range is defined as the ratio of the detector signal at which saturation occurs to the minimum measurable signal in that band. Single frame dynamic range shall be at least 1,000.

3.1.1.5 Frame Rate: The imaging system shall be capable of operating at a full FPA (un-windowed) frame rate of not less than 1000 frames per second (FPS). When ‘windowed’ to 640 by 240, the frame rate shall be not less than 2000 FPS. Also, imaging system shall have a frame rate of at least 5000 FPS with a ‘window’ not less than 256 by 64. Digitized pixel data shall be provided for every array pixel in the window at these frame rates.

3.1.2 InSb-Spatial Imager

3.1.2.1 Spectral Response: The imaging system's FPA spectral response shall cover 1.5 – 5.0 μm. The government-provided filter, when required, shall be installed such that filter temperature is at or near temperature of the cooled detector. The government-provided filter, when required, will have a mean transmittance in a bandpass within the detector spectral response greater than 80% in-band and transmittance less than or equal to 0.1% out of band at cooled detector temperature.

3.1.2.2 Detector Resolution: The FPA of the imaging system shall have at least 1280 horizontal by 1024 vertical pixels.

3.1.2.3 Detector Pixel Pitch: The pixel size shall be less than or equal to 12µm square.

3.1.2.4 Dynamic Range: Single frame dynamic range shall be at least 1,000.

3.1.2.5 Frame Rate: The imaging system shall be capable of operating at a full FPA (un-windowed) frame rate of not less than 180 FPS. When ‘windowed’ to 640 by 512, the frame rate shall be at least 500 FPS. Digitized pixel data shall be provided for every array pixel in the window at these frame rates.

3.1.3 SLS Imager

3.1.3.1 Spectral Response: The imaging system's FPA spectral response shall cover 7.9 – 12 μm. The government-provided filter, when required, shall be installed such that filter temperature is at or near temperature of the cooled detector. The government-provided filter, when required, will have a mean transmittance in a bandpass within the detector spectral response greater than

80% in-band and transmittance less than or equal to 0.1% out of band at cooled detector temperature.

3.1.3.2 Detector Resolution: The FPA of the imaging system shall have at least 640 horizontal by 512 vertical pixels.

3.1.3.3 Detector Pixel Pitch: The pixel size shall be less than or equal to 25µm square.

3.1.3.4 Dynamic Range: Single frame dynamic range shall be at least 100.

3.1.3.5 Frame Rate: The imaging system shall be capable of operating at a full FPA (un-windowed) frame rate of not less than 1000 frames per second (FPS). When ‘windowed’ to 640 by 240, the frame rate shall be not less than 2000 FPS. Also, imaging system shall have a frame rate of at least 5000 FPS with a ‘window’ not less than 256 by 64. Digitized pixel data shall be provided for every array pixel in the window at these frame rates.

3.1.4 SLS-Spatial Imager

3.1.4.1 Spectral Response: The imaging system's FPA spectral response shall cover 7.9 – 12 μm. The government-provided filter, when required, shall be installed such that filter temperature is at or near temperature of the cooled detector. The government-provided filter, when required, will have a mean transmittance in a bandpass within the detector spectral response greater than 80% in-band and transmittance less than or equal to 0.1% out of band at cooled detector temperature.

3.1.4.2 Detector Resolution: The FPA of the imaging system shall have at least 1280 horizontal by 1024 vertical pixels.

3.1.4.3 Detector Pixel Pitch: The pixel size shall be less than or equal to 12µm square.

3.1.4.4 Dynamic Range: Single frame dynamic range shall be at least 100.

3.1.4.5 Frame Rate: The imaging system shall be capable of operating at a full FPA (un-windowed) frame rate of not less than 180 FPS. When ‘windowed’ to 640 by 512, the frame rate shall be at least 500 FPS. Digitized pixel data shall be provided for every array pixel in the window at these frame rates.

3.2 Sensor Electronics

3.2.1 Time Stamp: The imaging system internal clock shall provide for the ability to synchronize with an externally connected IRIG B time signal and encode each sample with a time stamp accurate within 1msec or less.

3.2.2 A/D Converter: The instrument internal analog to digital signal converter (A/D) shall have a resolution greater than or equal to 14-bit, and that full range shall be preserved in the systems generated data file.

3.2.3 Integration Time: The instrument integration time shall be independent of the frame rate and shall be adjustable from 1µsec to 1/(frame rate).

3.2.4 Integration Sequencing: The instrument shall provide for the ability to sequence integration time between successive frames, providing up to four discrete integration times sequentially during a single recording.

3.2.5 Integration Type: The instrument shall utilize a snap-shot integration mode.

3.2.6 Windowing: The instrument shall provide for windowing of the focal plane to enable higher frame rates at lower spatial resolution. The minimum acceptable reduction in resolution is 4:1 (FPA shall be capable of operating in user defined sub windows, for example, 320×320, 256×256, and 128×128; 64x64 are preferable).

3.2.7 Analog and Digital Output: The instrument shall provide for the ability to stream an analog NTSC video on a BNC connector simultaneously with full bit resolution binary output via Camera Link, GigE vision, or other digital communication protocols.

3.2.8 Data Storage: The instrument shall provide the capability to record full rate, full bit-depth resolution binary data directly to memory on the sensor head and shall provide a capability for retrieving this data from the sensor head via Ethernet in an automated manner requiring no user interaction. The memory can be volatile or non-volatile. If the memory is non-volatile, it shall be removable and shall use an industry-standard form factor and interface and shall not require any proprietary media.

3.3 Performance

3.3.1 Bad Pixels: The FPA number of bad (uncorrectable) pixels shall be less than or equal to 1% of the total array; greater than or equal to 99% shall be correctable and operable pixels with no contiguous groupings of bad pixels greater than 3×3.

3.3.2 Calibration Stability: Calibration stability is measured by pixel digital channel output vs. time for a constant input radiance. Within the instrument ambient operational range, each pixel of the focal plan array shall have a stability of 5% of reading for short-term (forty-five minute minimum between internal calibrations) and long-term (two week minimum between total system calibrations).

3.3.3 Radiometric Sensitivity and Accuracy: The Noise Equivalent Temperature Difference (NETD) shall not be more than 20mK and 40mK for a target at 30°C in the unfiltered InSb and SLS spectral regions, respectively. The accuracy shall allow for repeatable measurements within ±2% of full scale reading.

3.3.4 Linearity: Linearity of the system digital output reading to input radiance shall be within 5% of reading from 5% to 95% full analogue-to-digital (A/D) scale.

3.4 Optical

3.4.1 Focal Ratio: The cold shield F/# shall have options for f/2.5 and f/4.1.

3.4.2 Lens Mount: The imaging system shall be designed to use commercially available bayonet mounts for lenses manufactured by Janos, DIOP, or Government approved equal.

3.4.3 Lens options for each of imager types of 17mm, 25mm, 50mm, 100mm, and 200mm focal length shall be included as options in responses to this advertisement. Options for motorized lenses shall be included.

3.4.4 Out-of-FOV Rejection: The optical train of the imager shall be baffled sufficiently to reduce stray radiation entering from 5deg outside the nominal FOV by a factor of at least 1,000.

3.4.5 Field-of-View Uniformity: The measured output across the total FOV while viewing a uniform scene filling the total FOV shall not vary more than ±15% before non-uniformity correction and ±1% after non-uniformity correction at the longest operable integration time.

3.4.6 Neutral Density Filtering: The imager shall be designed to use interchangeable neutral density (ND) filters on an internal filter wheel mechanism.

3.4.7 The imager shall include a temperature-monitored shutter internal to the instrument body for the purpose of manual and automatic Non-Uniformity Corrections (NUCs).

3.4.8 Detector Geometric Fill factor: The FPA active pixel area to total pixel shall be at least 95%.

3.5 General

3.5.1 Power Supply: The instrument power requirement shall be self-contained and external power accessory shall be supplied with each unit.

3.5.2 Operating Voltage: The instrument power requirements shall conform to 120VAC ± 10% at 60Hz ± 3 Hz with a maximum current of 5 amperes.

3.5.3 Electromagnetic Compatibility: The instrument shall be compliant with CE and FCC (Part15) regulations for emissions (Industrial equipment class), or equivalent.

3.5.4 Ambient Operating Environment: The instrument shall operable over the ambient temperature range from 10°F to 125°F and relative humidity range between 1 to 95% non-condensing.

3.5.5 Detector Array Cooling: The array shall be electrically cooled and the imager shall reach operational temperature within 15min.

3.5.6 Instrument Housing: The instrument housing shall be rated at least IEC IP-51 (Ref 2.2.1) and shall not exceed a height and width of 60 cm, a depth of 50 cm, and weight of 13.5kg.

3.5.7 Instrument Mounting: The instrument shall have integrated threaded ¼-inch diameter, 20 threads per inch mounting holes.

3.5.8 Statement of Volatility: The instrument shall include a Statement of Volatility, or procedures to accomplish a complete and total instrument data memory wipe, such that no data history of previous data collects resides within the instrument or on software GUI license dongles, if required.

3.6 Instrument Software Control Interface

3.6.1 Instrument Software Environment: The instrument system shall be supplied with a graphic based software to provide instrument status monitoring, instrument control, instrument data acquisition and data viewing.

3.6.1.1 The software shall be compatible with existing Government computers running Microsoft Windows 10 for 64-bit operating system.

3.6.1.2 The software shall communicate with the instrument via Camera Link, GigE vision, or other digital communication protocols for which both documentation and unlimited usage license are provided.

3.6.1.3 The software shall recognize and indicate when the instrument is not connected, and continue running until connection with the instrument is first initiated and re-established.

3.6.2 Instrument Software Control: The software shall include the following functionality:

A. Display live data from instrument

B. Arm instrument to begin data acquisition immediately upon a trigger to start

C. Start instrument data acquisition from graphical user interface

D. Permit remote start instrument data acquisition via a software method, or hardware switch closure or TTL signal to the instrument head

E. Autonomously trigger, record data, recycle collection parameters, and re-enter into an ready state for another trigger

F. Disarm instrument from a ready state to acquire and record data

G. View recorded data in raw or engineering units

H. Be scriptable and provide full functionality when called from either Python or C executive script.

I. Record a minimum of 5 seconds of data to a maximum of 30 seconds of data at full sample rate with no dropped samples.

J. Clear/Reset instrument state

3.6.3 Instrument Data Viewer and Data Reduction: The instrument Data Viewer and Data Reduction software shall be capable of displaying captured data.

3.6.4 The software native data file format shall be documented and the appropriate automated software tools provided to directly store the collected files into the Standard Archive Format (SAF) reference 2.1.1.

3.6.5 Instrument Status: An Application Program Interface (API), Software Development Kit (SDK), or similar function, software shall be provided that, concurrently with operation of the instruments software (reference section 3.6.1) allows the user to monitor (GET) and set (SET) instrument operational parameters.

3.6.5.1 The API, SDK, or similar function, shall allow the user to GET:

A. Instrument Connection Status

B. Connected Device ID

C. IRIG Sync Status

D. Instrument Internal Temperatures, if applicable

E. Current Instrument State

i. Not Connected

ii. Idle, awaiting command

iii. Armed, ready for acquisition

iv. Acquiring, capturing data

v. Writing, saving data to disk, if applicable

vi. Done, instrument acquisition and data transfer complete

3.6.5.2 The API, SDK, or similar function, shall allow the user to GET and SET

A. Output file destination folder

B. Record Duration, if applicable to instrument functionality

C. Output File Type, instrument native format or SAF

D. Output filename or, if applicable, the base filename to a series of incrementing output files generated by appending indexing numbers to the base filename for each subsequent data file to be generated

E. Integration Time and Integration Time Sequencing, if applicable

F. Sample Rate

G. Current Calibration Name (identifier/method), if applicable

3.6.6 Automatic Data Retrieval: The instrument software control GUI and API (or similar function) shall be capable of automatic retrieval of data captured directly to the onboard data storage device in the sensor’s head.

3.6.6.1 The software and API (or similar function) shall include the following user functionality:

A. Enable/Disable record to the onboard memory

B. Initiate on demand the download of previous recorded event

C. Initiate on demand the clearing of recorded data from the sensor head

D. Ability to retrieve a single frame from a series of frames stored on the sensor head’s data storage device

4 SUBMITTALS SUMMARY

4.1 Operation and Maintenance Manuals

4.1.1 Submit instrument operation and maintenance manual(s) with each unit upon delivery.

Operational instructions shall cover the use of the instrument and instrument control software.

The maintenance manual shall include a list of recommended spare parts.

4.2 Warranties

4.2.1 Submit manufacturer’s written warranty prior to unit purchase for at least one-year coverage of the instruments parts and labor.

4.3 Specification Sheet

4.3.1 Submit a product data sheet verifying all instrument requirements will be met prior to purchase.

Table 1: Submittal List No. Section Reference Submittal Description Due

1 4.1.1 Operation & Maintenance Manual Upon Unit Delivery

2 4.2.1 Warranty Prior to Unit Purchase

3 4.3.1 Specification Sheet Prior to Unit Purchase

4 4.1.2 Acceptance Test Plan 2 Weeks Prior to Acceptance Test

5 4.1.3 Acceptance Test Report Prior to Unit Shipment

5 VERIFICATION

5.1 Vendor Testing

5.1.1 The Vendor shall be responsible for verifying instrument compliance of each imager type with the specification. Compliance with the spec may be shown through test, demonstration, analysis, or documentation.

5.1.2 The Vendor shall document the plan for each unit in an Acceptance Test Plan. The plan shall be provided to the Government two weeks before testing.

5.1.3 The Vendor shall document the results of each unit’s acceptance in a Test Report to be provided to the Government prior to shipment. Acceptance testing shall be conducted at the Vendor’s facilities. The Government reserves the right to attend Vendor verification testing.

5.2 Government Testing

5.2.1 Government acceptance testing may include verification of the Vendor testing and/or completion of verification not sufficiently addressed by Vendor testing.

6 PACKAGING

6.1 Preparation for Delivery:

Vendor shall provide all preservation, packaging, and packing to ensure safe delivery of each unit and related components to Arnold AFB, TN. Include manufacturer’s operating instructions in packaging.

7 NOTES (NOT USED)

APPENDIX A TECHNICAL SUMMARY

Table 1: Detector Performance by Category

IR Imager Category Spectral Response

Detector Resolution (H × V pixels)

Detector Pixel Pitch

Dynamic Range Frame Rate

InSb 1.5 – 5.0 µm ≥ 640 × 512 ≤ 25 µm² > 1,000 ≥ 1000 FPS, at full FPA ≥ 2000 FPS, at 640 × 240 ≥ 5000 FPS, at > 256 × 64

InSb-Spatial 1.5 – 5.0 µm ≥ 1280 × 1024 ≤ 12 µm² > 1,000 ≥ 180 FPS, at full FPA ≥ 500 FPS, at 640 × 512

SLS 7.9 - 12 µm ≥ 640 × 512 ≤ 25 µm² > 100 ≥ 1000 FPS, at full FPA ≥ 2000 FPS, at 640 × 240 ≥ 5000 FPS, at > 256 × 64

SLS-Spatial 7.9 - 12 µm ≥ 1280 × 1024 ≤ 12 µm² > 100 ≥ 180 FPS, at full FPA ≥ 500 FPS, at 640 × 512

Table 2: Detector Characteristics by Category Sensor Electronics

Image Time Stamp ≤ 1msec Accuracy

Imager Head A/D Resolutions ≥ 14-bit

Integration Time 1μsec to 1/(Frame Rate)

Integration Sequencing Capability in Single Recording

Up to 4 Integration Times

Integration Mode Snap-Shot

Windowing Reduction 4:1 Minimum

Analog/Digital Output Simultaneous NTSC Video Output over BNC Coax Cable and Full Bit Image Output over a Digital Communication Protocol

Performance

Bad Pixels (uncorrectable) ≤ 1% of Total Array, No Grouping Larger Than 3 × 3 Pixels

Calibration Stability ± 5% of Reading after Short-Term and Long-Term Calibrations

Radiometric Accuracy Repeatable Within ± 2% of Full Scale

Radiometric Sensitivity (Noise Equivalent Temperature Difference)

≤ 20mK at 30°C in InSb and ≤ 40mK at 30°C in SLS Spectral Regions

Linearity ±5% of Reading from 5% to 95% Full Analogue-to-Digital (A/D) Scale

Optical

Cold Shield f/# f/2.5 or f/4.1

Lens Options Bayonet Mount with Optional 17mm, 25mm, 50mm, 100mm, and 200mm lenses. Option for motorized lenses.

Out-of FOV Rejection 5deg outside nominal FOV by a Factor of at Least 1,000

Uncorrected Non-Uniformity < 15%

Corrected Non-Uniformity < 1%

ND Filter Internal filter wheel for interchangeable filters

NUCs Internal Shutter for Manual and Automatic Non-Uniformity Corrections

Detector Fill Factor ≥ 95% FPA Active Pixel to Total Pixel

General

Operating Voltage 120VAC ± 10% at 60Hz ± 3 Hz with a Maximum Current of 5 Amperes

Electronic Emission CE and FCC (Part 15) Compliant

Operating Environment 10°F to 125°F at 1 to 95% Relative Humidity, Non-Condensing

Detector Cooling Electrically Cooled, Operable within 15min Upon Initial Power

Instrument Housing IEC IP-51 Rated, less than 60 × 60 × 50 cm (h × w × d) and 13.5kg

Instrument Mounting Integrated 1/4in Ø, 20TPI Holes

Statement of Volatility include Statement of Volatility or procedure for memory wipe