Fiber Optic Pyrometry with Large Dynamic Range.
Patent, Filed 8 Aug 85, patented 14 Jul 87,
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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This patent discloses fiber optic probe apparatus usable for measuring temperatures with increased dynamic range and frequency domain response and desirable measurement accuracy. A black body signal source, fiber optic signal coupling, and extension of the transducer dynamic range with optical multiplexing are employed the instrument operates in the range of 1.6 micrometers of optical energy wavelength and preferably employs recently improved indium gallium arsenide photodiode transducer devices and transducer frequency domain compensation. Use of the instrument in measuring combustion flame transient temperatures is disclosed.
- Test Facilities, Equipment and Methods