Research on conductance transducer for granular material moisture measurement

被引：0
|
作者：
Yu, Y [1 ]
Liu, YQ [1 ]
机构：
[1] Shenyang Univ Technol, Shenyang 110023, Peoples R China
来源：
ICEMI 2005: CONFERENCE PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT & INSTRUMENTS, VOL 5 | 2005年
关键词：
conductance; transducer; moisture; granular;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel conductance transducer powered by alternating signal is advanced in this paper. It is composed of conductance and temperature measurement circuits. The transducer could overcome electrolysis and contains a capacitance compensation circuit. The alternating measurement signal is rectified and filtered by active circuit. In order to remote control, a constant current circuit is adapted for changing measurement signal to 4 similar to 20mA current signal. So it is satisfactory for granular material on-line moisture measurement. Experiments illustrate its good linear.
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页码：109 / 112
页数：4
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