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Laser-fiber sensor for measuring relative shift

机译：激光纤维传感器，用于测量相对位移

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Abstract: A new type of laser-fiber sensor for measuring and monitoring a big size body (for example the rocket body) surface's relative shift, which is produced in a strong vibration system, has been studied. The laser-fiber sensor is a combination of laser, fiber, computer, etc. and has features of simple, quick, and high accuracy. The light of a semiconductor laser with a wavelength of $lambda $EQ 780 nm passes through a 12 m long multi-mode fiber and an objective lens, then irradiates on the surface measured. Another objective lens collects the reflected light from the surface measured and images it on a 2048 charge coupled device (CCD), then a 286 computer processes the signal from the CCD. The sampling frequency of measuring data of this laser-fiber sensor is 800 Hz and its measuring accuracy is better than $POM 0.05 mm. The measuring range of relative shift is about $POM 15 mm. It has the ability to measure and monitor the related shift of moving objects in a strong vibration system. !3
机译：摘要：研究了一种新型的用于测量和监视大尺寸物体（例如火箭身）表面相对位移的激光纤维传感器，该传感器是在强振动系统中产生的。激光光纤传感器是激光，光纤，计算机等的组合，具有简单，快速，高精度的特点。波长为λλEQ780 nm的半导体激光器的光穿过一条12 m长的多模光纤和一个物镜，然后照射到被测表面上。另一个物镜收集被测表面的反射光并将其成像在2048电荷耦合器件（CCD）上，然后一台286计算机处理来自CCD的信号。该激光光纤传感器的测量数据采样频率为800 Hz，其测量精度优于$ POM 0.05 mm。相对位移的测量范围约为$ POM 15 mm。它具有在强大的振动系统中测量和监视运动物体相关位移的能力。 ！3

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