Emissivity Patent Rights
In 1987, Pyrometer purchased exclusive patent rights from Exxon Corporation to develop emissivity measurement systems.
Emissivity is crucial to accurate temperature measurement in infrared thermometers and temperature sensors. Like radiance, it’s another material feature that, when known, allows operators to ensure a high quality yield. Emissivity though, affects optical and infrared temperature instruments, reducing measurement accuracy. Prior to 1987, operators would estimate emissivity based on experience or use of ratio pyrometers limited for gray body targets. A problem with these solutions was that emissivity tends to change quickly, making it difficult to obtain accurate temperature measurements.
With the Exxon rights, Pyrometer developers went to work on creating an automatic emissivity correcting IR thermometer that would solve these problems. The result was the Pyrolaser® Portable automatic IR thermometer. This device so improved the accuracy of temperature measurement that it received the 1988 Photonics Circle of Excellence Award.