Journal of Hebei University(Natural Science Edition) >

2021 , Vol. 41 >Issue 4: 443 - 448

DOI: https://doi.org/10.3969/j.issn.1000-1565.2021.04.015

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

  • WANG Yongqing ,
  • LIU Huan ,
  • WANG Shuonan ,
  • LIU Lei
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  • College of Electronic Information Engineering, Hebei University, Baoding 071002, China

Received date: 2020-08-18

  Online published: 2021-09-03

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Abstract

In order to achieve a lower cost and long-distance counting of products, a photoelectric counting circuit using 1N4148 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 1N4148 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 1N4148 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.

Key words： photoelectric sensor; photoelectric counting circuit; 1N4148 glass-encapsulated diode; semiconductor laser

Cite this article

WANG Yongqing , LIU Huan , WANG Shuonan , LIU Lei . Design of low cost photoelectric counting circuit based on 1N4148 glass-encapsulated diode[J]. Journal of Hebei University(Natural Science Edition), 2021 , 41(4) : 443 -448 . DOI: 10.3969/j.issn.1000-1565.2021.04.015

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