All-fiber optic displacement sensing system for an Ilizarov transverse tibial bone transport device

Haidong Liang, Yuxuan Jiang, Xianfan Wang, Elfed Lewis, Pengfei Wang

Research output: Contribution to journalArticlepeer-review

Abstract

A single-mode-multimode-single-mode (SMS) optical fiber-based displacement sensing system mounted on an Ilizarov transverse tibial bone transport device for microcirculation reconstruction is reported. Wide-range displacement is approximated as a uniform extension of a spring that is connected to an SMS optical fiber structure acting as the displacement sensor and allowing full displacement characterization. Transmission spectrumchanges are measured, providing a displacement range of 24 mm with a sensitivity of -55.42 pm=mm and a resolution of 45.2 μm. The experimental results are characterized using a polynomial response curve for measuring the displacement due to transverse distraction of the Ilizarov device. The SMS fiber interrogation system is based on a macrobending fiber edge filter-based ratiometric measurement system. The use of SMS fibers together with the macrobending fiber-based interrogation system eliminates the influence of temperature on the displacement measurement. The implementation of the all-fiber sensing system of this investigation has uniquely facilitated a smart clinical device with a wide displacement range as well as operating in real-time monitoring when attached to the Ilizarov transverse tibial bone transport device. It also means that this fiber-optic sensing device can be made more cost-effective, simpler in construction, and more versatile while providing a high degree of measurement accuracy and resolution.

Original languageEnglish
Pages (from-to)2077-2084
Number of pages8
JournalApplied Optics
Volume59
Issue number7
DOIs
Publication statusPublished - 1 Mar 2020

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