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Proceedings Paper

Demonstration of a flexible, highly sensitive catheter for high resolution manometry based on in-fibre Bragg gratings
Author(s): C. Bueley; P. Wild
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Paper Abstract

This work presents a fibre optic-based flexible catheter for high resolution manometry, with sensing pods located at a pitch of 10 mm and an overall diameter of 2.8 mm. In-fiber Bragg gratings act as the sensing elements within these sensing pods. Absent in each sensing pod are rigid anchor points representing a novel departure from comparable designs and resulting in increased sensitivity and decoupling from axial loading. A pressure sensitivity of 1.8 pm/mmHg and axial sensitivity of 11 mmHg/N of applied load is demonstrated. Crosstalk between individual sensors is characterized and a compensation scheme is developed and validated.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211Q (17 October 2012); doi: 10.1117/12.970257
Show Author Affiliations
C. Bueley, Univ. of Victoria (Canada)
P. Wild, Univ. of Victoria (Canada)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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