Photoelectric system design of laser haze detector based on STM32
WANG Biao
CHEN Yue
LIU Yu-feng
CHEN Lei
YANG Kai
Abstract：In order to realize the rapid and precise on-line detection of haze, a design scheme of optical and electrical system for haze detection based on the laser scattering principle was proposed. In the proposed system, a red laser was adopted as the detection light source, and an annular photoelectric detector was used to receive the laser signal. In addition, the analog multiplexer was adopted to select the photocurrent signal exported by the photoelectric ring, and the IV and AD conversion circuits were applied to convert the photocurrent signal into the digital signal. The information was sent to the screen with the serial port, and the data interface of upper computer was provided to realize the data transmission. The results show that the photoelectric system can stably work, has fast speed, and can better meet the requirements in the photoelectric system of laser haze detection system.
Keywords：annular photoelectric detectorhaze detectionanalog multiplexerred laserdata acquisitionscattering principlephotoelectric systemdata interface
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 654-658 )