Emissivity Independent Optical Pyrometer

The present invention provides an emissivity independent optical pyrometry technique and apparatus that allows absolute measurements of surface temperature using a non-contact probe. The technique allows surface temperatures between 300 Deg. C and 1400 Deg. C to be measured with resolutions of less than 5 degrees C. This system utilizes an optical fiber probe which allows measurements to be performed in challenging environments. These include environments with high magnetic fields, radiation, and high temperatures. The non-contact probe is capable of measurements in open air and through clear windows. A measurement standoff distance is typical for most applications.

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