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The SBIR 2600 Series Dual Blackbody Source is designed for applications requiring the precision and versatility provided by two blackbodies. Two-point correction of infrared detectors, radiometric calibration of IR target projectors and simulators, and high precision system-level testing all depend on an accurate dual-temperature source.

These instruments are built using the same Smart Blackbody® architecture as SBIR's 2000 Series Blackbodies, and thus exhibit the superior accuracy, stability, and ease of use of SBIR's other Smart Blackbodies. See the 2000 Series data sheet for more information about this breakthrough product.

The microprocessor-based temperature controller allows the absolute temperature of both blackbodies to be controlled independently. Alternately, the differential temperature of source 2 can be controlled with respect to source 1.

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

A P P L I C A T I O N S

High Precision FLIR Testing The 2600 Series Dual Blackbody Source, in combination with the SBIR RTC Reflective-Target Collimators, provides the flexibility of performing system-level tests such as MRTD at user selectable background temperatures. With this system, both the background and target temperatures are controllable.

Earth/Sky Simulation The 2600 Series provides a convenient means of simulating an earth/sky or sea/ sky background. These can be combined with simulated targets, clutter and/or countermeasures for hardware-in-the-loop simulation.

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.

Internal Reference Sources SBIR designs miniature blackbody sources for incorporation into radiometers and FLIRs. Dual blackbodies can be configured for either scanning or staring systems. SBIR can supply custom miniature blackbody sources to meet your optical system requirements.

F E A T U R E S / O P T I O N S

Smart Blackbody™ Architecture
SBIR's Smart Blackbodies put the temperature measurement and calibration electronics in the blackbody head rather than in the control electronics package. With this new architecture, temperature measurement information from the blackbody to the controller is serial digital data rather than an analog temperature sensor signal. The result is significantly improved performance, lower noise operation, more stable temperature control, improved immunity to EMI, and an easier integration task for the test equipment engineer.

Absolute or Differential Temperature Control
The absolute temperature of source 1 is set directly. Either the absolute temperature of source 2 or the differential temperature of source 2 with respect to source 1 can be controlled. Setpoint and displayed temperature resolution are .001°C.

Handheld Remote Panel
An optional remote control is available. All instrument front panel functions can be accessed using this handheld unit. It is connected to the temperature controller with a 10 foot cable. (Model 15148).

IEEE Std. 488 Interface (GPIB)
The thorough implementation of the ANSI/IEEE Std. 488.1-1987 allows computer control of all blackbody functions, calibration, and optional features such as target wheels and illuminators. (Option G).

RS-232 Serial Interface
An optional serial interface provides computer control of all blackbody, calibration, illuminator and target wheel functions. (Option S)

Target Wheels
The target wheel option enables multiple targets to be rapidly positioned in front of the blackbody. For details on the complete line of SBIR target wheels, see the Target Wheel data sheet.(Option W)

Targets
Many standard and custom infrared targets are available. These targets can be supplied with either emissive or reflective coatings. See the Target data sheet for details.

Illuminator
A visible alignment light moves into and out of the optical path to blacklight the target. When installed in a target projector system, this option facilitates UUT setup and allows the user to perform extremely accurate IR-to-visible boresighting. (Option I).

Rack Mounting
The blackbody controller is designed for bench-top or standard 19 inch rack use. Rack mounting ears come standard; a rack slide kit is also available.

D I M E N S I O N S

S P E C I F I C A T I O N S

Detailed Outline Drawings in PDF Format
2002 2" BB Head	2003 3" BB Head	2004 4" BB Head
	2600 Series Controller

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O R D E R   I N F O R M A T I O N

SBIR 2600 Series Dual Blackbody Systems are specified by model number corresponding to the aperture size of the two blackbodies (see table). Options are specified as suffixes to the Model number (i.e. 2602GW = two 2" Blackbodies with GPIB Interface and Target Wheel Drive Electronics). Other features such as non-standard cable length, extended temperature range, and rack slide kits should be explicitly specified. Contact SBIR for assistance in selecting standard or custom systems.