A force sensor based on FPI for flexible needle force sensing

被引：0

作者：

Yu, Lihui ^{[1
]}

Jiang, Qi ^{[1
]}

Wang, Feiwen ^{[1
]}

机构：

[1] Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Shandong, Peoples R China

来源：

OPTICAL FIBER TECHNOLOGY | 2024年 / 88卷

关键词：

Fabry-Perot interference; Force sensing; Flexible needle; Minimally invasive surgery; PRESSURE;

D O I：

10.1016/j.yofte.2024.104012

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In order to solve the problems of puncture force sensing error and delay during the puncturing of human tissue by flexible needle, a Fabry-Perot (FPI) sensor consisting of single-mode optical fibre and air cavity is proposed. The FPI was fixed to the tip of a flexible needle and puncture experiments were carried out on four different hardnesses of silicone. The experimental results show that the sensor not only has high resolution and sensitivity of the puncture force, which can effectively sense the small change of the cutting force during the puncture process, but also has a smaller time delay compared with the commercial force sensor, which can sense the change of the puncture force during the puncture process in time.

引用

页数：9

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