机械与电子
機械與電子
궤계여전자
Machinery & Electronics
2015年
11期
64-66
,共3页
光电检测%微弱光信号%低噪声
光電檢測%微弱光信號%低譟聲
광전검측%미약광신호%저조성
photoelectric detector%weak opti-cal signals%low noise
光电信号检测与采集电路的性能优劣，直接关系到粉尘浓度测量系统的准确度和精确度。在分析研究了光电检测基本原理和微弱信号检测影响因素的基础上，针对粉尘浓度测量系统中光信号的特点，通过采用差分式测量结构，提高光电探测器供电电源的稳定度，选用低噪声、响应快的运算放大器等措施，设计了一种噪声低、反应快、简单实用的微弱光信号检测电路，成功应用到了某粉尘浓度测量系统上。
光電信號檢測與採集電路的性能優劣，直接關繫到粉塵濃度測量繫統的準確度和精確度。在分析研究瞭光電檢測基本原理和微弱信號檢測影響因素的基礎上，針對粉塵濃度測量繫統中光信號的特點，通過採用差分式測量結構，提高光電探測器供電電源的穩定度，選用低譟聲、響應快的運算放大器等措施，設計瞭一種譟聲低、反應快、簡單實用的微弱光信號檢測電路，成功應用到瞭某粉塵濃度測量繫統上。
광전신호검측여채집전로적성능우렬，직접관계도분진농도측량계통적준학도화정학도。재분석연구료광전검측기본원리화미약신호검측영향인소적기출상，침대분진농도측량계통중광신호적특점，통과채용차분식측량결구，제고광전탐측기공전전원적은정도，선용저조성、향응쾌적운산방대기등조시，설계료일충조성저、반응쾌、간단실용적미약광신호검측전로，성공응용도료모분진농도측량계통상。
The performance of photoelectric signal detection and acquisition circuit is directly connected to the accuracy and precision of the dust concentration measurement system.On the basis of analyzing the basic principles of the photoelec-tric detector and weak signal detection factors on the characteristics of the optical signal dust con-centration measurement system,by using differen-tial measurement structure,improving the stability of power supply photoelectric detector,choosing low noise,fast response and other measures of operational amplifier, a low noise, faster re-sponse,easy and practical weak optical signal de-tection circuit is designed,and successfully applied to the dust concentration measurement system.
