Capacitive Humidity Sensor to Analog Output Converter

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https://www.electronics-lab.com/project/capacitive-humidity-sensor-to-analog-output-converter/

The project presented here is an analog capacitive humidity sensor converter board suitable for various humidity measurement tasks. The circuit comes from Texas Instruments application note (see below). Most conventional capacitive proximity sensors produce a digital signal, but this circuit produces a DC output voltage that is a function of the relative humidity of the […]

Linear Capacitive Proximity Sensor

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https://www.electronics-lab.com/project/linear-capacitive-proximity-sensor/

The project presented here is an analog capacitive proximity sensor. The circuit is from Texas Instruments application note. Most conventional capacitive proximity sensors produce a “1” or “0” output, this circuit produces a DC output that is a function of the size and relative permittivity of an object passing between the sense capacitor plates. Different […]