公开(公告)号：KR1020020019816A

公开(公告)日：2002-03-13

申请号：KR1020000053164

申请日：2000-09-07

Applicant: 한국과학기술원

Inventor： 이정주 ,  김상훈

IPC: G01B9/02

Abstract: PURPOSE: A method for signal processing of transmission-type extrinsic fabry-perot interferometer optical fiber sensor(TEFPI) is provided to process the signal of the TEFPI optical fiber sensor to easily sort the measuring direction and to improve sensitivity and resolution. CONSTITUTION: A method for signal processing of transmission-type extrinsic fabry-perot interferometer optical fiber sensor(TEFPI) includes steps of interfering(300) the sensor signal of the TEFPI optical fiber sensor and detecting the location of the peak and trough point, comparing signal datum point, intermediate value of adjacent peak and trough point and deciding(310) the measuring direction, and sorting and recognizing(320) the signal type when the measuring direction is changed. A reference grid(13), an upper grid(12), and a lower grid are used to detect the progress of interference fringe while excluding the effect of the measuring noise in the step(300).

Abstract translation: 目的：提供一种用于传输型外在光纤干涉光纤传感器（TEFPI）的信号处理方法，以处理TEFPI光纤传感器的信号，轻松对测量方向进行分类，提高灵敏度和分辨率。 构成：传输型外在干涉式光纤传感器（TEFPI）的信号处理方法，包括干扰（300）TEFPI光纤传感器的传感器信号，检测峰谷位置的步骤，比较 信号基准点，相邻峰值和谷点的中间值，并决定（310）测量方向，并在测量方向改变时对信号类型进行分类识别（320）。 使用参考网格（13），上格栅（12）和下格栅来检测干涉条纹的进展，同时排除步骤（300）中的测量噪声的影响。