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《Instrument Technique and Sensor》 2007-12
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Intelligent Instrument for Turbidity Detection Based on AT89S52

LIU Chang,WANG Bing-feng(Automation College,University of Electronic Science and Technology,Chengdu 610054,China)  
An intelligent instrument for turbidity detection was designed according to the water turbidity measurement standard of ISO7027.The instrument measures the ratio between scattering and transmitting light to eliminate the inaccuracy because of light source aging.It chooses AT89S52 to be controller,meanwhile amplifies and samples alternatively both the 90 degree scattering light and transmitting light signal,and sends the digital data to the AT89S52 controller to realizes the processing and displays.Based on the analog experiment,the correlated index is proved to be excellent,and the instrument run stably and reliably.
【CateGory Index】： TP216.1
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