电子设计工程
電子設計工程
전자설계공정
Electronic Design Engineering
2015年
22期
67-69,73
,共4页
电调制红外光源%NDIR%PID算法%微弱信号处理
電調製紅外光源%NDIR%PID算法%微弱信號處理
전조제홍외광원%NDIR%PID산법%미약신호처리
electrical modulation of infrared light source%NDIR%PID algorithm%weak signal processing
高速动车对安全要求越来越高,文章介绍一种电调制非分光红外传感器构成的新型气体测试仪中关键问题的分析与设计.测试仪中电调制非分光红外传感器采用电调制红外光源,同时采用高精度干涉滤光片以及镀金气室,通过PID算法实现高精度环境控温,设计选频特性优良、强抗干扰能力的微弱信号处理电路,最终完成SO2、CO、CO2等气体的测试系统.
高速動車對安全要求越來越高,文章介紹一種電調製非分光紅外傳感器構成的新型氣體測試儀中關鍵問題的分析與設計.測試儀中電調製非分光紅外傳感器採用電調製紅外光源,同時採用高精度榦涉濾光片以及鍍金氣室,通過PID算法實現高精度環境控溫,設計選頻特性優良、彊抗榦擾能力的微弱信號處理電路,最終完成SO2、CO、CO2等氣體的測試繫統.
고속동차대안전요구월래월고,문장개소일충전조제비분광홍외전감기구성적신형기체측시의중관건문제적분석여설계.측시의중전조제비분광홍외전감기채용전조제홍외광원,동시채용고정도간섭려광편이급도금기실,통과PID산법실현고정도배경공온,설계선빈특성우량、강항간우능력적미약신호처리전로,최종완성SO2、CO、CO2등기체적측시계통.
This paper presents an analysis and design method about electric modulation NDIR sensors . The utility model is the key problem in gas tester. Testing instrument for electric modulation NDIR sensors using electrically modulated infrared light source , At the same time by using high precision interference filter and a gold plated gas chamber , Through the PID algorithm to achieve high precision environmental temperature, design of a signal processing circuit, its good performance, high frequency strong ability of anti jamming, this system can be used for real time measurement of many gases such as SO2、CO、CO2 and so on.
