Chirped fiber Bragg grating sensor for pressure and position sensing

Pieter L. Swart; Beatrys M. Lacquet; Anatolii A. Chtcherbakov

doi:10.1117/1.1914792

Translator Disclaimer

1 May 2005 Chirped fiber Bragg grating sensor for pressure and position sensing

Pieter L. Swart, Beatrys M. Lacquet, Anatolii A. Chtcherbakov

Author Affiliations +

Optical Engineering, 44(5), 054402 (2005). https://doi.org/10.1117/1.1914792

Abstract

We present a chirped fiber Bragg grating sensor that should be suitable for esophageal motility studies. The device uses the time-dependent group delay response of a chirped fiber Bragg grating to measure the peristaltic pressure wave that propagates down the esophagus with the transport of a bolus to the stomach. In contrast to existing transducers that only measure at discrete points, the output of this device is a continuous function of length along the esophagus. This paper presents ex-vivo experimental results. There is a linear relation between the wavelength location of the maximum phase perturbation and the position along the sensor where the perturbation occurred. The maximum phase change itself is directly proportional to the magnitude of the applied load at a specific position.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Pieter L. Swart, Beatrys M. Lacquet, and Anatolii A. Chtcherbakov "Chirped fiber Bragg grating sensor for pressure and position sensing," Optical Engineering 44(5), 054402 (1 May 2005). https://doi.org/10.1117/1.1914792

Published: 1 May 2005

ACCESS THE FULL ARTICLE