基于1N4148玻封二极管的低成本光电计数电路设计  

Design of low cost photoelectric counting circuit based on 1N4148 glass-encapsulated diode

作　　者：王永清[1] 刘欢 王硕南 刘磊[1] WANG Yongqing;LIU Huan;WANG Shuonan;LIU Lei(College of Electronic Information Engineering,Hebei University,Baoding 071002,China)

机构地区：[1]河北大学电子信息工程学院,河北保定071002

出　　处：《河北大学学报（自然科学版）》2021年第4期443-448,共6页Journal of Hebei University(Natural Science Edition)

基　　金：天津市重点研究开发项目(19YFHBQY00030)。

摘　　要：为了实现低成本、远距离地对产品进行计数,设计了一种采用1N4148玻封二极管为光电传感器的光电计数电路.采用2 kHz激光调制光源、二阶高通滤波电路提高电路的抗干扰能力,同时采用半导体激光器作为光发射器件,1N4148玻封二极管作为光接收元件.结果表明,设计的光电计数电路实现了对不同时段产品的计数,验证了1N4148作为新型光电传感器与半导体激光器配合使用的可行性.因半导体激光器价格低廉,电路具有低成本、计数距离远等优点,具有应用前景.In order to achieve a lower cost and long-distance counting of products,a photoelectric counting circuit using 1 N4148 glass encapsulated diode as photoelectric sensor is designed.In this paper,a 2 kHz laser modulated light source and a second-order high pass filter circuit are used to improve the anti-interference ability of the circuit.At the same time,the semiconductor laser is used as the optical emission device,and the 1 N4148 glass sealed diode is used as the optical receiving element.The experimental results show that the designed photoelectric counting circuit can count the products in different periods of time,and it verifies the feasibility of using 1 N4148 as a new photoelectric sensor in ayuction with the semiconductor laser.AS semiconductor laser is cheap,the circuit has the application prospect because of its low cost and long counting distance.

关 键 词：光电传感器 光电计数电路 1N4148玻封二极管 半导体激光器 

分 类 号：TH724[机械工程—仪器科学与技术]