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《Chinese Journal of Power Sources》 2014-02
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Micro-current measurements design in microcomputer control electrochemical system

XIAO Le;LIU Jue-min;XIANG Zeng;GUO Gang;QIN Pan;College of Electrical and Information Engineering, Hunan University;  
In order to improve the measuring accuracy and the data analysis speed of the electrochemical analyzer system, to optimize the structure of the system, the ADuC847 by single-chip microcomputer control of the electrochemical analyzer system of micro-current measurement design was introduced. The micro-current measurement principles, through the I/V switching, T circuit and the anti-interference, such as design, and using the high accuracy OPA129 op-amp to micro-current amplification were analyzed. The wide measuring range and high sensitivity were realized. pA~μA level micro-current could be quickly, accurately measured by the system. Then the measured results could be intuitive displayed.
【CateGory Index】: TM933.1
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