A universal blackbody calibration source for temperature span from ambient to 2300 °C

Keikhosrow Irani

doi:10.1117/12.666037

18 April 2006 A universal blackbody calibration source for temperature span from ambient to 2300 °C

Keikhosrow Irani

Proceedings Volume 6205, Thermosense XXVIII; 620507 (2006) https://doi.org/10.1117/12.666037
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

The model M395 blackbody source represents an unusual and highly innovative approach for the design of a truly universal blackbody source, which satisfies the most demanding requirements of modern radiometric calibration needs. This is indeed a milestone step, taken by Mikron Engineers, to satisfy seemingly two irreconcilable design criteria up to now, an ability to reach extreme high temperatures of 2300°C and at the same time to satisfy the need for near ambient temperatures. Due to the unique design of heated cavity shape, higher emissivity factor of near unity is achieved. This feature alone allows the calibration of the infrared instrument with wavelength range from 500nm to 20.0μm with much higher precision than previously possible. The flatness of spectral emissivity eliminates the constant awareness of potential errors associated with longer wavelength instruments under calibration. Due to incredible slew rate of near 300°C per minute and temperature resolution of 0.1°C, model M395 has the ability to replace number of existing blackbody sources with in an industrial facility or research laboratory with smaller foot print. It takes only several minutes to reach to any desired set points. Highly uniform emitter temperature further insures that infrared instruments with different field of view are equally accurate during calibration.

Citation Download Citation

Keikhosrow Irani "A universal blackbody calibration source for temperature span from ambient to 2300 °C", Proc. SPIE 6205, Thermosense XXVIII, 620507 (18 April 2006); https://doi.org/10.1117/12.666037

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