天津工业大学学报2024，Vol.43Issue(4)：67-74,8.DOI:10.3969/j.issn.1671-024x.2024.04.011
基于光纤传感的带式输送机张力检测技术
Tension detection technology of belt conveyor based on optical fiber sensor
摘要
Abstract
A tension detection method of belt conveyor based on optical fiber sensing is proposed for the current problems of easy damage,poor accuracy and reliability of belt conveyor tension detection.The method is based on the princi-ple of double interference effect by placing the Fabry Perot cavity sensor in the hydraulic circuit of the belt con-veyor tensioning device,and the pressure of the hydraulic circuit causes deformation of the silicon diaphragm of the Fabry Perot cavity sensor,which causes changes in the reflected light of the Fabry Perot cavity sensor.After the optical demodulator optical circuit receives the reflected light from the Fabry Perot cavity sensing,the re-flected spectrum is obtained after demodulation of the optical circuit,and the free spectral range of the reflected light spectrum is obtained through photoelectric conversion,processing and analysis of the photoelectric demod-ulator circuit,and then the belt conveyor tension is calculated according to the internal area of the cylinder,which realizes the belt conveyor tension detection.A Fabry Perot cavity sensor and an electro-optical demodula-tor are designed,and the software of the electro-optical demodulator is designed using Python language,and ex-perimental studies are conducted.The experimental results show that the method can achieve belt conveyor ten-sion detection with a pressure measurement range of 0-25 MPa,sensitivity of 0.148 nm/MPa,measurement ac-curacy of 0.1％,not easy to damage,good anti-interference,high accuracy and reliability.关键词
光纤传感器/带式输送机/张力检测/张紧油缸/法珀腔传感头/光电解调器Key words
optical fiber sensor/belt conveyor/tension test/tensioning cylinder/Fabry Perot cavity sensor/optical de-modulator分类
矿业与冶金引用本文复制引用
苗长云,张豫飞..基于光纤传感的带式输送机张力检测技术[J].天津工业大学学报,2024,43(4):67-74,8.基金项目
国家自然科学基金面上项目(NSFC51274150) （NSFC51274150）
天津市重点研发计划科技支撑项目(18YFZCGX00930) （18YFZCGX00930）
