DOI: 10.2991/iccse-15.2015.45
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Abstract: During the test of medical and chemical process, operators need to precise and repeated sampling operation of various liquid frequently. This paper designs a kind of automatic sampling control device based on PLC and the stepper motor's, and introduces the hardware and software structure of the system. This system can realize the pre washing, accurate positioning, sample number and sample volume settings, and has a touch screen for man-machine interface, which can be widely used in the field of precise experim… Show more

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