| 摘要 |
Method and device for monitoring an insulating or conducting test fluids by monitoring the rate of modification of at least one plate of a capacitive sensor (2) immersed in the fluid. The capacitive sensor (2) is characterized by at least two sensor electrode plates (4, 6) that is of different materials modified by the test fluid over a time period as well as a dielectric element (8) being composed of material different from the test fluid. The capacitive sensor (2) is measured over time and its change due to modification of sensor plates area (4, 6) is recorded and uaed to determine quantity materials such as acid, alkali, contaminants, and/or chemicals that are use in the test fluid.
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