Fiber-Optic Schemes For Fast-Response Pressure Sensing

S. W. Allison; J. D. Muhs; D. J. Adams; G. J. Capps; M. R. Cates; B. L. Johnson

doi:10.1117/12.959684

7 February 1989 Fiber-Optic Schemes For Fast-Response Pressure Sensing

S. W. Allison, J. D. Muhs, D. J. Adams, G. J. Capps, M. R. Cates, B. L. Johnson

Proceedings Volume 0987, High Bandwidth Analog Applications of Photonics II; (1989) https://doi.org/10.1117/12.959684
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

An intrinsic multimode fiber-optic pressure sensor that is capable of measuring a specified range of dynamic (fast rise time) high-pressure impulses is discussed analytically and empirically. The sensor uses the pressure-induced microbend loss phenomena incurred by propagation modes of multimode fiber as its primary sensing mechanism and a pressure-induced refractive index change as a secondary effect. Several related variations of this fiber-optic pressure sensor are presented and compared in relation to their (1) pressure sensitivity, (2) ease of construction, (3) durability, and (4) environmental versatility. Two other measurement schemes are also discussed. Moreover, a high-impulse pressure-shock tube that is currently under construction will be discussed, along with a composite summary of the experimental results.

Citation Download Citation

S. W. Allison, J. D. Muhs, D. J. Adams, G. J. Capps, M. R. Cates, and B. L. Johnson "Fiber-Optic Schemes For Fast-Response Pressure Sensing", Proc. SPIE 0987, High Bandwidth Analog Applications of Photonics II, (7 February 1989); https://doi.org/10.1117/12.959684

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