CAJ | 학술논문

为测量振动环境下层间结构内部微小间隙的相对变化，设计了一种用于狭小空间内的平直光栅传感器。根据指定应用条件研究设计光栅传感基片的封装方案及其主要技术指标，并制作出平直光栅传感器。该传感器测量范围0.5 mm~0.8 mm，标定指标良好。通过试验应用证明，采用光栅传感器可实现振动环境下微小间隙的直接测量，且不用破坏原结构，与传统方法相比，数据真实可信，满足测量精确度μm量级要求。
위측량진동배경하층간결구내부미소간극적상대변화，설계료일충용우협소공간내적평직광책전감기。근거지정응용조건연구설계광책전감기편적봉장방안급기주요기술지표，병제작출평직광책전감기。해전감기측량범위0.5 mm~0.8 mm，표정지표량호。통과시험응용증명，채용광책전감기가실현진동배경하미소간극적직접측량，차불용파배원결구，여전통방법상비，수거진실가신，만족측량정학도μm량급요구。
A new flat fiber grating sensor used in narrow space is designed for measuring dynamic tiny clearance under vibration environment. According to given application conditions, substrate encapsulation scheme and its main technical indicators of the grating sensor are designed, and the measurement range is from 0.5mm to 0.8mm with good calibration data. The experiment results show that the grating sensor can realize the tiny clearance measuring under vibration environment without damaging the original structure; and it can provide authentic data with the precision scale ofμm, which is superior to traditional methods.