Infrared sensors – find manufacturers and suppliers

Infrared sensors - the "most sensitive" of all sensors!

These types of sensors measure wavelengths that are below those that the human eye can detect: Infrared (red light). Infrared sensors are used to detect motion and measure the temperature of objects and bodies. Since they do not emit heat themselves, they are referred to as passive infrared detectors.

What do manufacturers specialize in?

This results in many applications that manufacturers specialize in. Every one of us is familiar with motion detectors, at house entrances. Infrared sensors can be combined very well with an alarm system. Burglars are reported and the security of the building and the entire environment is guaranteed. Infrared sensors react to existing, missing or changing heat emission. Heat radiation can be detected wonderfully with infrared sensors. That is why the sensors are also often used to measure temperature. Thermometers or thermal imaging cameras are typical applications. The temperature can also be measured without contact. Furthermore, they are used for wireless data transmission. Everyone knows the application of infrared radiation as a remote control.

The most modern development in the infrared sector

detectors can detect changes in heat or movement patterns very well. However, this requires that the sensors work precisely and are designed for the particular application. The latest state of the art are "smart sensors". These can not only detect data (heat, movements, etc.), they can also easily handle the processing and evaluation. This is done by integrating high-speed digital computers into the sensors. This high-quality pyroelectric technology is used for guidance systems in vehicles, parking aids, collision warning systems or in radio diagnostics.

What should be considered when buying?

Motion detectors should also be equipped with a twilight switch. This prevents the sensor from "switching on" even if there is sufficient brightness. In addition, the duration of the lighting time should be precisely defined. The programming of the sensors should always be geared to the respective situation. More robust and resistant models should be chosen for outdoor use. Most designs offer three setting options

• The detection range defines how close the object must be for the sensor to "switch on".
• The switch-on time specifies how long the light should remain switched on.
• The ambient brightness controls the darkness threshold at which the motion detector should switch on.