Research of optical fibre sensor for measuring strain 應(yīng)變光纖傳感器復(fù)用研究
The article consists of three parts mainly : the first part has described the method of detecting the faint signal , mainly include : detection technique of faint signal , principle of the optical fibre sensor , the little lose effects when optic fibre little curved , and the research of the stress sensor of optical fibre . the second part emphasizes on the design of the intelligent photoelectricity system , mainly tells the design of the circuit to process the faint photoelectricity signal , details the software and hardware design of intelligent photoelectricity system made of single chip microcontroller , led , man - machine interface , communication interface , etc . the third part is the network communication of the detection system , details the technology of single chip microcontroller how to group the network , and the communication between single the chip microcontroller system and the modem , and how to realize the data between the field and computer central exchanged through the existing public phone network 文章主要分為三部分:第一部分論述了微小信號的檢測方法,主要包括微小信號的檢測技術(shù)、光纖傳感器的原理、光纖微彎損耗效應(yīng)及光纖應(yīng)力傳感器的研制;第二部分重點講述了智能光電檢測系統(tǒng)的研制,主要講述了微弱光電信號調(diào)理電路的設(shè)計及由前(后)向通道、單片機、 led 、人機接口、通信接口等組成的智能光電系統(tǒng)的軟硬件的具體設(shè)計;第三部分為檢測系統(tǒng)的網(wǎng)絡(luò)通信部分,具體闡述了單片機系統(tǒng)間的組網(wǎng)技術(shù)、單片機和modem之間的通信及通過現(xiàn)有的公用電話網(wǎng)絡(luò)實現(xiàn)遠程監(jiān)控的技術(shù),實現(xiàn)現(xiàn)場檢測系統(tǒng)與橋梁測控中心的數(shù)據(jù)交換。
Adopting the method of burying the optical fibre sensors into the bridge , we can monitor the internal stress of the bridge real - time online . connecting the system and computer centre through the network of public phone , we can realize the information centralized management and need no people on - the - spot 本文采用將光纖傳感器埋入橋梁內(nèi)部的辦法,能夠?qū)崟r監(jiān)測橋梁內(nèi)部所受的應(yīng)力,將現(xiàn)場檢測系統(tǒng)與橋梁測控中心通過公用電話網(wǎng)絡(luò)相連接,可以實現(xiàn)遠程集中監(jiān)控和現(xiàn)場無人值班的目的。
Abstract : various parameters concerning water quality and atmosphere in environmental monitoring and control and the applications of sensors in this field is introduced . the fundamental principles of optic fibre sensors , thick film micro - sensors , biosensors , electrochemical sensors , optic sensors and semiconductor oxide sensors are also described 文摘:介紹了環(huán)境監(jiān)控中水質(zhì)和大氣兩個主要方面所涉及的參數(shù)及傳感器在該領(lǐng)域中的應(yīng)用,并簡單的描述了光纖、厚膜微型電極、生物、電化學、光、半導(dǎo)體氧化物等六類傳感器的基本原理。