Abstract

Experimental and theoretical results are presented on a simple compact fiber-optic sensor that uses a mirror placed on the end of a mass-loaded cantilevered elastic beam. Deflections of the beam due to acceleration are read out with multimode optical fibers and with a quarter-pitch GRIN rod lens. Two output fibers are used in a balanced-detection scheme. In the audio-frequency range, the minimum detectable acceleration is 2.4 × 10⁻⁶ G_rms, and the maximum measurable acceleration is 39 G_rms. The device is also sensitive to dc accelerations. However, during dc sensing, a fiber bending noise is found. This noise decreases the dynamic range of the accelerometer.

© 1984 Optical Society of America

Fiber-optic accelerometer with hydrophone applications

Glen A. Rines
Appl. Opt. 20(19) 3453-3459 (1981)

Broadband Michelson fiber-optic accelerometer

Caihe Chen, Delong Zhang, Guilan Ding, and Yuming Cui
Appl. Opt. 38(4) 628-630 (1999)

Optical fiber accelerometer based on a silicon micromachined cantilever

Abdelrafik Malki, Pierre Lecoy, Jeanine Marty, Christine Renouf, and Pierre Ferdinand
Appl. Opt. 34(34) 8014-8018 (1995)

Highly sensitive fiber-optic accelerometer using a micro suspended-core fiber

Wen Wang, Yedi Shen, Teng Guo, Xueguang Qiao, and Qiangzhou Rong
Appl. Opt. 58(21) 5852-5858 (2019)

Tilted fiber grating accelerometer incorporating an abrupt biconical taper for cladding to core recoupling

Tuan Guo, Liyang Shao, Hwa-Yaw Tam, Peter A. Krug, and Jacques Albert
Opt. Express 17(23) 20651-20660 (2009)