The humidity sensor using the sensitive capacitive-dependent crystal is described. Presented is the probe sensitivity (dependence of df on the dCx). In addition, the new idea of excitation of the entire humidity sensor with stochastic test signals is described, and the humidity surface-measuring method is given. It includes the influence of test signals of the weighting function uncertainty and of the A/D - D/A conversion. The results of humidity measurement with the excitation signals are shown experimentally. The uncertainty of the surface humidity measurement is less than 0.2% (T=15-25°C and humidity = 50 to 98%).
CITATION STYLE
Matko, V., & Donlagic, D. (1996). Sensor for high-air-humidity measurement. In CPEM Digest (Conference on Precision Electromagnetic Measurements) (pp. 351–353). IEEE. https://doi.org/10.1007/978-1-4757-9250-8_133
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