WANG Wei, DENG Jia-hao, YIN Jun, HUANG Yan. Engineering Model for Detecting Sensitivity of the Coupling Capacitance Detector[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2004, 13(1): 54-57.
Citation:
WANG Wei, DENG Jia-hao, YIN Jun, HUANG Yan. Engineering Model for Detecting Sensitivity of the Coupling Capacitance Detector[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2004, 13(1): 54-57.
WANG Wei, DENG Jia-hao, YIN Jun, HUANG Yan. Engineering Model for Detecting Sensitivity of the Coupling Capacitance Detector[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2004, 13(1): 54-57.
Citation:
WANG Wei, DENG Jia-hao, YIN Jun, HUANG Yan. Engineering Model for Detecting Sensitivity of the Coupling Capacitance Detector[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2004, 13(1): 54-57.
The sensitivity engineering model of the coupling capacitance detector is built to provide the theoretic foundation for designing its circuits and electrodes scientifically. The sensitivity concept model of the capacitance proximity detector is discussed, and the detecting sensitivity of the coupling capacitance detector is analyzed theoretically. Then the sensitivity engineering model, which can reflect the main parameters relationship of the detecting circuit is set up based on the foregoing analyses. It is concluded that: ① the sensitivity is mainly correlative with some parameters including the voltage transmission factor of the demodulator, the oscillating voltage amplitude and the amplitude variation constant of the oscillator; ② the sensitivity is also influenced by the areas of electrodes and the distance between electrodes of the detector.
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