Patent ID: 11906368
Assignee: FLUKE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. The temperature measurement system according to claim 1, wherein the interferometer is a first interferometer that produces an output optical signal at a measured first optical signal intensity of the first interferometer,
the temperature measurement system further comprising a second interferometer that includes a first arm configured to receive and optically transmit a portion of the input optical signal as a first beam, and a second arm configured to receive and optically transmit a portion of the input optical signal as a second beam, wherein the second arm introduces a phase shift in the second beam relative to the first beam to produce a phase-shifted second beam of the second interferometer, and wherein the first beam and phase-shifted second beam of the second interferometer combine to produce an output optical signal;
wherein an optical signal detector is configured to measure an optical signal intensity of the output optical signal of the second interferometer and produce a measured second optical signal intensity of the second interferometer; and
wherein the processor is configured to receive the measured first optical signal intensity of the first interferometer and the measured second optical signal intensity of the second interferometer and correlate both the measured first and second optical signal intensities of the respective first and second interferometers with the temperature.