A polymer humidity sensor is a device that measures the moisture content (humidity) in the air by measuring the electrical resistance of a polymer film. The film’s resistance changes in response to humidity levels, allowing the sensor to determine the amount of moisture present.
The sensor consists of a thin layer of conductive polymer film sandwiched between two electrodes. As the humidity in the surrounding air changes, the polymer absorbs or releases water vapor. This change in water content alters the electrical resistance of the film, which is measured by the electrodes.
Polymer humidity sensors are a versatile and effective tool for measuring humidity in various applications. Their ability to measure electrical resistance changes in a polymer film provides accurate and reliable humidity readings, making them ideal for a wide range of industries and environments.