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Two optical fiber pressure sensor techniques are applied to the measurement of the distributed pressure of an O-ring. These sensors are polarimetrically and interferometrically based. Experimental results are presented for measuring the pressure exerted on an O-ring placed in a vacuum chamber and are compared with analytical results. Resolution and dynamic range of the fiber sensors are discussed.
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Ahmed Bouzid, Mustafa A. G. Abushagur, Zhijian He, Susan E. Kosten, "O-ring fiber optic pressure sensor," Opt. Eng. 33(4) (1 April 1994) https://doi.org/10.1117/12.163104