Vocabulary concept

Concept URI		http://dd.eionet.europa.eu/vocabulary/aq/measurementmethod/CAPA-SENSOR
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Definition		Capacitive sensors function by using the principle of an ideal plate capacitor. One plate is the sensor itself. The other is the measurement object, which lies across from it. An electrical field is generated between the two plates. A protection ring around the device structure ensures that the electrical field is as homogenous as possible. If an object enters the field, the distance between the two plates changes. This can be measured
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