A Self-Oscillating System to Measure the Conductivity and the Permittivity of Liquids within a Single Triangular Signal
We present a methodology and a circuit to extract liquid resistance and capacitance simultaneously from the same output signal using interdigitated sensing electrodes. The principle consists in the generation of a current square wave and its application to the sensor to create a triangular output vo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2014-01-01
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| Series: | Journal of Sensors |
| Online Access: | http://dx.doi.org/10.1155/2014/389764 |