Blackbody Spectral Radiance Calculator

Instructions

  1. Enter blackbody temperature

  2. Set waveband range

  3. Adjust emissivity slider

Blackbody Theory

Read our white paper on Blackbody Theory to learn more about thermal measurement. Read More.

Blackbody Spectral Radiance Calculator
Warning: Short waveband must be less than long waveband.

Results

A dark image with a gradient from black to blue, no discernible objects or details.

See Full Selection of Blackbodies

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BB-100 blackbody calibration source

BB-100 Blackbody

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MRDT 50 differential blackbody calibration system

MRDT-50 Blackbody

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A small portable electronic device with a black front screen and red side panels, featuring a handle for carrying.

DCN1000 Blackbody

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Blackbody Theory White Paper

Place two objects in a void of empty space, one object hot, the other cold. The two objects will exchange energy and eventually come to the same temperature. It is the mechanism of this exchange that is the basis of blackbody theory.

By this theory, the temperature of the hot object is a measure of the kinetic energy of the random vibrational motion of its atoms. As the atoms vibrate they drag their electrons with them.

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A white and black electronic device with a handle on top on a laboratory table, surrounded by various circuit boards and wires, with computer monitors displaying code in the background.