本文關(guān)鍵詞：滑動軸承油膜厚度光纖精密檢測系統(tǒng)分析與設(shè)計(jì)　出處：《半導(dǎo)體光電》2017年04期 　論文類型：期刊論文

  更多相關(guān)文章： 光纖位移傳感器 同軸結(jié)構(gòu) 光電轉(zhuǎn)換 電路分析 實(shí)驗(yàn)

【摘要】：針對油膜厚度的靜、動態(tài)測量,設(shè)計(jì)了一種基于反射式強(qiáng)度調(diào)制型同軸結(jié)構(gòu)光纖位移傳感器(RLIM-FODS)的精密位移檢測系統(tǒng)。根據(jù)激光光束光場近似高斯分布的特性建立數(shù)學(xué)模型,利用Matlab對特性函數(shù)進(jìn)行仿真分析,光電轉(zhuǎn)換對部分背景光進(jìn)行了有效補(bǔ)償,對濾波電路進(jìn)行了失調(diào)電壓調(diào)節(jié)和截止頻率仿真修正,并通過實(shí)驗(yàn)進(jìn)行了驗(yàn)證。仿真和實(shí)驗(yàn)結(jié)果表明:建立的模型可以有效減小電源波動、微彎損耗等帶來的影響,信號檢測電路能夠精確地將小信號進(jìn)行放大,并且輸出信號穩(wěn)定,噪聲低,失調(diào)小,線性區(qū)間在1 200~2 700μm的范圍內(nèi),靈敏度可以達(dá)到6mV/μm,滿足精密檢測要求。
[Abstract]:The oil film thickness of the static, dynamic measurement, design a reflective intensity modulated optical fiber displacement sensor based on the coaxial structure (RLIM-FODS) of the precision displacement detection system. According to the beam of laser light field approximate Gauss distribution mathematical model, simulation analysis of the characteristics of the function of the Matlab, the photoelectric conversion part of the background light the effective compensation, the filter circuit modifies the offset voltage regulation and cutoff frequency simulation, and verified by experiment. The simulation and experimental results show that the proposed model can effectively reduce the fluctuation of electric source, influence the micro bending loss of the signal detection circuit can accurately amplify small signals and output. Signal stability, low noise, low offset, linear interval in the range of 1 200~2 to 700 m, the sensitivity can reach 6mV/ m, meet the precision requirements of the test.

【作者單位】： 西安建筑科技大學(xué)機(jī)電工程學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(51405366)
【分類號】：TH133.31;TP212
【正文快照】： 0引言基于光波的傳播參數(shù)會隨著外界環(huán)境的變化而發(fā)生變化,相關(guān)學(xué)者設(shè)計(jì)出了各種測量工程參數(shù)(壓力、溫度和距離等)的光纖傳感器[1-3]。隨著光纖技術(shù)的發(fā)展,光纖的補(bǔ)償技術(shù)和結(jié)構(gòu)優(yōu)化技術(shù)也得到了很大的發(fā)展[4]。李程等人[5]設(shè)計(jì)了用于轉(zhuǎn)子轉(zhuǎn)動時油膜厚度的檢測系統(tǒng),但未考慮，

本文編號：1419924