Resistive humidity sensors are a reliable method for accurately measuring moisture levels. They are widely used in various applications due to their precise and cost-effective nature. These sensors operate on the principle of measuring the change in electrical resistance of a hygroscopic material when it is exposed to changes in relative humidity.
Resistive humidity sensors consist of a resistive element, usually made of a polymer or ceramic material, which is coated with a hygroscopic material. When the surrounding relative humidity changes, the hygroscopic material absorbs or desorbs moisture, causing a change in its resistance. The change in resistance is then measured and converted into a corresponding humidity value.
Resistive humidity sensors provide an effective and reliable measure of moisture levels. They are commonly used in a wide range of applications, including HVAC systems, industrial process control, environmental monitoring, and automotive applications. Their accuracy, reliability, and cost-effectiveness make them the preferred choice for measuring moisture in various settings.