힘-거리 동시 측정 광섬유 기반 센서를 활용한 정밀 주사 시스템

Abstract

This study introduces a microinjection system with a fiber-optic force and distance measurement sensor. Fabry-Perot interferometer and common-path optical coherence tomography are combined to implement a multimodal force and distance sensor. After taking the fast Fourier transform (FFT) to the acquired interferometric signal, phase analysis, and amplitude are analyzed to measure force and distance, respectively. A linear piezoelectric actuator subsequently controls the needle position while compensating for the hand tremors.