Operating principle of capacitive sensors
Applications of capacitive sensors
Capacitive sensors are used in a variety of applications, such as:
- Detection of nearly all plastics
- Detection of glass, ceramics, wood and paper
- Detection of conductive media or bulk materials
- Metal detection
In contrast to inductive sensors, capacitive sensors detect almost all materials and media.
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The portfolio of standard capacitive sensors offered includes variants made of metal, plastic as well as cuboid and cylindrical designs. The latter are available in M12, M18 and M30 versions. The switching distances range from 4 to 25 mm. The setting is made via potentiometers or so-called teach buttons and can be partly secured by key locks. Depending on the sensor, the function can be freely selected as normally open or normally closed.
In addition, the entire portfolio of capacitive sensors provide increased immunity to interference for added safety. Also, the visualization of the switching status by means of LEDs, which some of the capacitive sensors in the range have, contributes to a safe application and enables the perfect setting of the switching point.
In addition to capacitive sensors for applications without high demands, you will also find sensors for use in potentially explosive atmospheres such as the KI505A from ifm with 3D ATEX approval.
If a diverse range of processing sensor data is important to you, the sensors with IO-Link interface, such as the capacitive sensor KI6000 from ifm, are the right solution for you. The sensors can even be parameterised via IO-Link before they are used.
The offered capacitive sensors are suitable for a wide variety of applications for position and level detection.