Capacitive sensors from Schlüter in cylindrical miniature design with and without external thread and as disc sensors can be installed almost anywhere to save space. They are suitable for a wide variety of uses.
Schlüter also offers capacitive sensors with integrated amplifiers in designs from Ø6,5 to M30.
For example, with a stainless steel housing for the food industry.
Capacitive sensors are equally suitable as presence sensors, level sensors, or for position detection.
Types available
- Capacitive sub-miniature sensors from Ø4 mm x 27 mm, Ø6,5 x 18 mm, M5 x 27 mm and M8 x 25 mm, flush and non-flush
- Capacitive disc sensors Ø10 x 3 mm, Ø18 x 2,5 or 4 or 10 mm, Ø22 x 4 or 10 mm and Ø30 x 4 or 10 mm with adjustable switching distances between 2,5 and 15 mm
- Standard capacitive sensors from Ø6,5 mm to M30
- analog sensors
- High temperature resistant capacitive sensors up to + 250 ° C
- Special capacitive sensors according to customer requirements
Benefits
- Sturdy metal housing
- Precise switching behavior
- High switching speed
- High temperatures
- LED function display
- Adjustable
- High quality standard
Applications
- Level detection of liquids through container walls
- Level detection of powders and granulates
- Presence detection
- Positioning of metallic and non-metallic materials
- Semiconductor detection
- Edge control
- touch sensors
Our current product catalog
Capacitive sensors or capacitive proximity switches are available in different designs and with different housing materials.
The operating principle is as follows:
The non-contact capacitive sensor converts a production-relevant quantity (distance or fill level) into a further processable analog or digital signal. Its function is based on a change in the electric field in the vicinity of its active zone.
The basic structure of the sensor consists of an RC oscillator as a sensor, a demodulator and an output stage (PNP, NPN, antivalent, normally open, normally closed or analog as voltage or current output)
The approach of metals or non-metals into the active zone of the capacitive sensor causes a change in capacitance, which in turn causes the RC oscillator to oscillate. This causes the trigger stage downstream of the oscillator to switch, and the switching amplifier to change its output state, current, or voltage.
