Electromagnetic humidity sensor for industrial applications |
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| Authors: | Vainikainen PV Agarwal RP Nyfors EG Toropainen AP |
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| Institution: | Helsinki University of Technology, Radio Laboratory, Espoo, Finland; |
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| Abstract: | The letter describes an electromagnetic humidity sensor based on a resonance perturbation technique. The proposed sensor is capable of measuring humidity over a wide dynamic range in an industrial environment and is insensitive to dust, dirt, oil vapours etc. The all-metal construction of the sensor makes it immune to damage by high temperature. The sensor signal processing circuit provides a time-dependent signal which can be directly applied to any modern computerised control systems. |
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