Optical Fiber Grating Vibration Sensor for Vibration Monitoring of Hydraulic Pump
Optical Fiber Grating Vibration Sensor for Vibration Monitoring of Hydraulic Pump作者机构：Department Two Rocket Force University of Engineering Xi'an 710025 China
出 版 物：《Photonic Sensors》 (光子传感器（英文版）)
年 卷 期：2017年第7卷第2期
页 面：140-147页
核心收录：
学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学]
主 题：Fiber Bragg grating uniform strength beam vibrating monitoring vibration sensor
摘 要：In view of the existing electrical vibration monitoring traditional hydraulic pump vibration sensor, the high false alarm rate is susceptible to electromagnetic interference and is not easy to achieve long-term reliable monitoring, based on the design of a beam of the uniform strength structure of the fiber Bragg grating （FBG） vibration sensor. In this paper, based on the analysis of the vibration theory of the equal strength beam, the principle of FBG vibration tuning based on the equal intensity beam is derived. According to the practical application of the project, the structural dimensions of the equal strength beam are determined, and the optimization design of the vibrator is carried out. The finite element analysis of the sensor is carried out by ANSYS, and the first order resonant frequency is 94.739 Hz. The vibration test of the sensor is carried out by using the vibration frequency of 35 Hz and the vibration source of 50 Hz. The time domain and frequency domain analysis results of test data show that the sensor has good dynamic response characteristics, which can realize the accurate monitoring of the vibration frequency and meet the special requirements of vibration monitoring of hydraulic pump under specific environment.
维普期刊数据库