Overview:

SBIR's Infinity Dual Differential Blackbody Systems (DDB Series) are designed for applications requiring the precision and versatility provided by two separate blackbodies. Two-point correction of infrared detectors, radiometric calibration of IR target projectors and simulators, and high precision system-level testing all use dual sources to improve accuracy and reduce test time. The temperature control circuitry of the two blackbodies is shared, eliminating the bulk and expense of two controllers, and greatly improving the accuracy of the differential temperature control.

The temperature controller allows the absolute temperature of both blackbodies to be controlled independently. Alternately, the temperature of source 2 can be controlled with respect to source 1. Another key feature is the new iProbe from SBIR. This intelligent temperature sensor is calibrated independently of the blackbody system. To re-calibrate the system you need only exchange the probe with a recently calibrated one. No special equipment is required thus minimizing downtime

These instruments are built using the same architecture as SBIR's DB Series Blackbodies, and thus exhibit the superior accuracy, stability, and ease of use as SBIR's other Infinity systems.

These dual blackbodies integrate easily with SBIR's reflective-target collimators and target wheels to create turnkey IR target projectors.

Features:

• Emissivity
  
  A surface treatment is used to create a spectrally flat emissivity of > 0.970 (3µm to 5.5µm), > 0.950 (8µm to 14µm).

• Intelli-Probe (iProbe)
  
  The iProbe is an intelligent temperature sensor that is calibrated independently of the blackbody system. To re-calibrate the system you need only exchange the probe with a recently calibrated one.  No special equipment is required and there is no down time in the test area.

• Uniformity
  
  The Infinity blackbody incorporates design and construction features that maximize spatial uniformity and minimize convection influences resulting in typical surface uniformity of > 98% of set absolute temperature less ambient temperature over 90% of the emitting surface area.

• Milli-Kelvin Temperature Stability
  
  SBIR has developed unique temperature measurement and analog-to-digital conversion circuitry with integrated control logic that results in extremely responsive temperature control. True set point and accurate milli-kelvin control have been achieved allowing for precision testing at contrast levels of 1 milli-kelvin.         

• Accuracy
  Ultra-stable, highly responsive iProbes are used to provide very precise control and accurate system performance. The temperature sensors used in the Infinity Series are calibrated to an accuracy of under 0.010ºC.

• Multi-Function Controller
  
  The controller features a touch screen display and supports remote computer control over Ethernet or RS-232. The controllers are also available with an optional IEEE 488 Interface.
  
  The controller will also operate all of the SBIR peripherals: target wheels, visible illuminators, pulsed laser diodes, range slides, source slides and filter wheels.
  

• Automatic Radiometric Compensation
  
  Attenuation caused by optics, differences in emissivity, ambient temperature change, and waveband of interest result in system output that is not radiometrically correct. When operating the controller in the radiometric mode, compensation for these factors is automatically applied, adjusting the blackbody as required to maintain the proper system output.  

• IRWindows™ Advanced EO Test and Analysis Tool
  
  The Infinity Series is also optimized for seamless integration with the SBIR IRWindows™ test system. IRWindows™ is an advanced software tool that automates the setup, execution, data collection and results analysis for industry standard performance testing of infrared, visible and laser sensor systems.

• Configurations
  
  The Infinity Dual Differential Blackbody systems include a single temperature controller (19” rack mount or desktop configuration), two blackbody heads, interconnect cables, power cables and manual. The blackbody heads are available with emitting surface sizes including 4”, 6” and 8” squares. Standard and optional temperature ranges can be viewed in the Specifications section.

Options:

• IEEE Std. 488 Interface (GPIB)
  The thorough implementation of the ANSI/IEEE Std. 488.1-1987 allows for computer control of all blackbody, calibration, illuminator, and target wheel functions.
  
  
• Radiometric Differential Temperature
  Differential temperature errors due to optical attenuation or emissivity differences can be corrected with this feature.
  
  
• Illuminator
  A visible alignment light moves into and out of the optical path to backlight the target. The illuminator position is controlled from the front panel or via the computer interface options. Light level luminance is preconfigured and adjustable at 10 various intensity set points. This feature is very useful for visible alignment of the system. IR-to-visible boresight tests can be made with uncompromised accuracy because the target is stationary during IR to visible transition.
  
  
• Targets
  Many standard and custom infrared targets are available. These targets can be supplied with either emissive or reflective coatings. See the Target section for details.
  
  
• Target Wheels
  Multiple targets can be rapidly and precisely positioned in front of the blackbody. Target position can be set from the front panel of the controller or via the optional computer interface. For details on the full line of target wheels see SBIR’s Target Wheel section.
  
  
• Rack Mounting
  The blackbody controller is designed for bench-top or standard 19 inch rack use. Rack mounting ears come standard with the instrument. A rack slide kit is also available.

Dimensions:

See PDF outline drawings:

4" Infinity Blackbody PDF
6" Infinity Blackbody PDF
8" Infinity Blackbody PDF
Infinity Controller PDF

Specifications:

Available Sizes	4”, 6”, 8”
Standard Temperature Range A	0ºC to100ºC Absolute
Optional Range B	0ºC to 175ºC Absolute
Optional Range C1	-40ºC to +100ºC Absolute
Optional Range D1	-40ºC to +175ºC Absolute
Emissivity (Average)	> 0.970 (3µm to 5.5µm), > 0.950 (8µm to 14µm)
Uniformity	>98% of Tset – Tambient or 0.01ºC, over 90% of the emitting surface area
Absolute Accuracy	±0.007ºC for 0ºC<T<50ºC or ±0.0005 (T-25) elsewhere
Stability	σT≤0.001ºC (0ºC to 50ºC), σT≤0.002ºC (-40ºC to 0ºC and 50ºC to 100ºC), σT≤0.003ºC (110ºC to 175ºC)
Display Resolution	0.001ºC or 0.0001ºC
Setpoint Resolution	0.001ºC
Ready Indicator Selectable	±0.001ºC to ±5.000ºC
SLEW RATE2
Approximate Heating Rate	+0.40ºC/sec. at 25ºC
Approximate Cooling Rate	-0.20ºC/sec. at 25ºC
Settling Time	<45 seconds
ENVIRONMENTAL
Operating Temperature	0˚C to 50˚C
Storage Temperature	-20˚C to 70˚C
Relative Humidity	5% to 95%, non-condensing
Power Requirements	100-120/220-240 VAC at 60/50Hz
Maximum Power Consumption	850W-1600W depending on size and temperature range
Approximate Blackbody Weight	DDB-04—15 lbs., DDB-06—25.0 lbs., DDB-08—40.0 lbs., DDB-12—50 lbs.
Approximate Controller Weight	15.0 lbs.
Notes: For use in a thermal chamber from (-20˚C thru +50˚C ambient) Slew rates vary depending on blackbody size and environmental conditions. * Specifications subject to change without prior notice

Application Drawings

 

• High Precision FLIR Testing
  When combining SBIR’s Infinity DDB Series with our Reflective-Target Collimators, users can easily perform system-level tests such as MRTD at selectable background temperatures. With this system, both the background and target temperatures are controllable.
  
  
  

• Radiometric Calibration
  A dual blackbody source is an ideal reference standard for radiometric calibration of IR target projectors and simulators. The dual blackbodies establish a known differential radiance allowing a transfer radiometer to measure the effective radiant output of the target projector.
  
  
        

• 2-point Calibration
  Calibration at 2 temperatures is performed on IR focal plane cameras to correct for pixel to pixel variations in response. This flood mode test is used to maximize FLIR performance.
  
  
  

PDF Data Sheet:

See PDF Datasheet

Order Information:

SBIR’s dual blackbody systems are classified based on nine different features that a customer can choose from. They are blackbody model number, source head #1 size, source head #1 temperature range, source head #2 size, source head #2 temperature range, country code, cable length, communication options and configuration options. For example, a dual head 4" Dual Infinity System with IEEE 488 GPIB communication interface, 115/60Hz with US power cable, temperature range of 0ºC to +100ºC absolute T for both blackbodies, cable length of 10 feet and target support plates on both blackbodies has the following part number: DDB-04-A-04-A-L-10-EG-P

Dual Differential Blackbody: DDB

Blackbody Size#1: 04", 06", 08"

Temperature Range#1:

• A = 0ºC to 100ºC Absolute
• B = 0ºC to 175ºC Absolute
• C = -40ºC to 100ºC Absolute
• D = -40ºC to 175ºC Absolute

Blackbody Size#2: 04", 06", 08"  

Temperature Range#2:

• A = 0ºC to 100ºC Absolute
• B = 0ºC to 175ºC Absolute
• C = -40ºC to 100ºC Absolute
• D = -40ºC to 175ºC Absolute

Power Cable :

• H- Europe (Germany, Netherlands, France, Sweden)
• I- Australia & China
• J- UK & Ireland
• K- Italy
• L- US & Japan

Cable Length: 10 ft., 25 ft., 50 ft.

Communications Options:

• ES- Ethernet and RS-232
• EG- Ethernet and IEEE-488 GPIB

T1 Target Probe Options:

• P- Target support plate for both blackbodies
• Q- No target support plate for either blackbody
• S- Target support plate for BB #1 only
• T- Target support plate for BB #2 only
• R- Radiometric Compensation

Please contact the SBIR sales team at (805) 965-3669 to ensure the proper part number and to receive a quotation.

Information subject to change without notice