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A tool for precise infrared testing: SBIR Infinity series differential blackbody system
Date: 2025-10-21Read: 8

Blackbody is not allowed to measure everything

Those who work in infrared imaging know one thing: blackbody is inaccurate, everything is white.Today's topic is the SBIR Infinity DB series differential blackbody - an instrument that writes "stability, accuracy, and speed" directly on the face.

Why is differential blackbody so crucial?


When performing non-uniformity correction (NUC), it is necessary to maintain a constant temperature difference between two blackbodies; When the temperature drifts by 0.02 ° C, the entire image becomes blurred.

When measuring MRT, MTF, and SiTF, a temperature difference step in the millikelvin range is required; A ruler with a coarse scale results in distortion. The Infinity DB series is a "vernier caliper" level black body.

Understand performance at a glance

Revolutionary iProbe temperature sensorUsing an independently calibrated intelligent temperature probe, only the pre calibrated probe needs to be replaced during recalibration, without the need for special equipment, greatly reducing downtime

excellentTemperature accuracyAchieve an absolute accuracy of ± 0.010 ° C within the range of 0 ° C to 50 ° C, with a tolerance of ± 0.0005 (T-25) for other temperature ranges

Excellent emissivityThe average emissivity in the 3-5.5 μ m band is greater than 0.970, and in the 8-14 μ m band it is greater than 0.950

Excellent uniformity90% of the emission surface reaches 98% of the set Δ T or 0.01 ° C (whichever is greater)

Extremely high stabilityTemperature stability within the range of 0 ° C to 50 ° C, σ T ≤ 0.001 ° C

How to choose from four sizes?


The system supports multiple interfaces (Ethernet, GPIB, or RS-232) and can be equipped with automatic radiation compensation function to meet various needs from non-uniformity correction, sensor calibration to standard infrared sensor characteristic testing such as MRT, MTF, SITF, etc.

Technical specification highlights

Heating/cooling rateAt 25 ° C, the heating rate reaches+0.40 ° C/s and the cooling rate is -0.20 ° C/s

stabilization time:<45 seconds

working environmentController 0 ° C to 50 ° C, Head -20 ° C to 50 ° C

power consumption850W-1600W (depending on size and temperature range)

weightFrom 15 pounds for DB-04 to 74 pounds for DB-12

Application scenarios

The Infinity series differential blackbody system is an ideal choice for the following applications:

Calibration and characteristic testing of infrared sensors

Performance evaluation of optoelectronic systems

Non uniformity correction of thermal imaging system

Key tests in the military and aerospace fields

High precision infrared measurement in scientific research institutions

SBIR's Infinity series has set a new benchmark in the field of infrared testing through innovative design and strict performance standards. Whether it is scientific research applications that pursue ultimate precision or industrial testing that requires reliable stability, this system can provide reliable solutions.

For more technical details or customized solutions, please contact SBIR's designated Labsphere professional team. Accurate measurement begins with selecting the correct blackbody system.