Multimode-interference-effect-based all-fiber displacement sensing system for an orthopedic Ilizarov apparatus device

Haidong Liang, Xianfan Wang, Ke Tian, Wenlei Yang, Elfed Lewis, Pengfei Wang

Research output: Contribution to journalArticlepeer-review

Abstract

The paper describes a multimode-interference-effect-based single-mode–multimode–single-mode (SMS) fiber optic sensing system for wide-range displacement monitoring on an Ilizarov orthopedic external fixation device. Displacement measurement is implemented as the uniform extension of a spring, which is connected to an SMS optical fiber displacement sensor, allowing full displacement characterization. SMS fiber structures are used together with a macrobending-fiber-based interrogation system to measure temperature perturbation and hence eliminate its effect on the displacement measurement. Transmission spectra are measured, achieving a displacement measurement range of 110 mm with maximum sensitivity of −53 pm∕mm and a resolution of 500 μm. The all-fiber sensing system has facilitated a clinical device with a wide displacement range operating in real-time when attached to the Ilizarov apparatus.

Original languageEnglish
Pages (from-to)3209-3213
Number of pages5
JournalApplied Optics
Volume58
Issue number12
DOIs
Publication statusPublished - 20 Apr 2019

Fingerprint

Dive into the research topics of 'Multimode-interference-effect-based all-fiber displacement sensing system for an orthopedic Ilizarov apparatus device'. Together they form a unique fingerprint.

Cite this