9 February 1993 Optical pressure sensor using a low-coherence light source with a highly birefringent fiber
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Proceedings Volume 1712, 14th Symposium on Photonic Measurement; (1993) https://doi.org/10.1117/12.140167
Event: 14th Symposium of the TC2 on Photonic Measurements, 1992, Sopron, Hungary
Abstract
A polarimetric interferometric based pressure sensor, using a photoelastic material as a sensing element is demonstrated. The light source used was a multimode laser diode, coupled into the system through a highly birefringent fiber to provide a reference bias signal. The arrangement of the sensor system produces birefringence in the sensing element, and a Michelson interferometer to which the light then passes is used for signal processing. The path difference induced by the pressure was measured by re-establishing the interference condition in this Michelson interferometer. The pressure to be measured was applied by placing a calibrated mass on the sensing element. Results are presented showing the potential of such a system for pressure sensor applications.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Preecha P. Yupapin, Preecha P. Yupapin, Kenneth Weir, Kenneth Weir, Kenneth T. V. Grattan, Kenneth T. V. Grattan, Andrew W. Palmer, Andrew W. Palmer, } "Optical pressure sensor using a low-coherence light source with a highly birefringent fiber", Proc. SPIE 1712, 14th Symposium on Photonic Measurement, (9 February 1993); doi: 10.1117/12.140167; https://doi.org/10.1117/12.140167
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