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Electronic pressure control of gas chromatograph

Time:2018/10/18   Pageviews:0    Share:
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Gas chromatography vials electronic pressure control is the pressure of a specified point in the gas path controlled by a computer or a single chip microcomputer. Electronic pressure control is a negative feedback control system. The gas chromatograph pressure sensor detects the current pressure signal, and after digitizing it, it is sent into the PID controller. The PID controller calculates the control amount to drive the control valve according to the current pressure and the set pressure, thereby achieving pressure control.
The gas chromatograph control valve is a proportional solenoid valve that linearly changes the opening of the valve according to a given signal to achieve circuit pressure control. Gas chromatograph pressure controllers are Gas chromatography vials usually divided into upstream pressure control and downstream pressure control.
 


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