The humidity sensor measures the water content of gas and solids. The relative humidity sensor is used to sense the moisture content of the air, while a humidity sensor for solid materials senses the moisture content of solid materials.
Humidity sensors are used in all industrial sectors, in laboratories and in production centers.
Relative humidity sensors are used to monitor climatic conditions, while humidity sensors for solid materials are used to analyze the quality of materials such as wood or concrete.
How to choose a humidity sensor?
To choose your humidity sensor, you must first determine what it should be used for. This is because you won’t need the same type of humidity sensor to measure humidity in air or to measure humidity in solids or oils.
Then you need to make your choice based on the accuracy you need, the repeatability of the measurements you want to make, and the stability of the measurements over the long term.
Depending on the environment where the humidity sensor will be installed, you must define whether it should be resistant to chemical and physical contaminants (dust), what should be its maximum dimensions and what will be its mounting or fixing principle.
Some sensors can be sensitive to condensation, especially resistive humidity sensors. If your sensor is likely to be subjected to this phenomenon, it is preferable to look at, for example, capacitive sensors or dew point sensors.
With all these elements, you can then determine which sensor technology is best suited to your need.
What other characteristics should I take into account when choosing a humidity sensor?
Since relative humidity is directly related to temperature, most Humidity Controllers also incorporate a temperature sensor. If this is not the case, you will need to provide for the installation of a temperature sensor in order to be able to correctly use the data provided by the blackhawk supply humidity sensor.
You must also choose your sensor according to its type of output. This can be analog or digital, and in this case, it requires a specific interface. Some sensors can be offered with a display for direct reading of the measured data.