Comparator
Capacitive proximity sensors
These sensors detect without contact objects of all kinds (liquids, pastes, powders, bulk solids), whether they are conductive or not.

Principle
Electrodes placed in the sensing face of the sensor form a capacitor whose capacity varies according to the dielectric properties of the objects entering the electric field formed between the electrodes.

A change in the capacity causes the RC oscillator to begin to oscillate. Consisting of a demodulator followed by a Schmitt trigger, a signal-shaping stage evaluates the signal delivered by the RC oscillator. Depending on the voltage attenuation measured, it triggers a change in the state of its output which controls the output stage of the sensor.

Special products
SENSTRONIC is at your disposal to discuss special applications or development requests. Do not hesitate to contact our sales department.

Overview of the SENSTRONIC RANGE
Body shape
  • Cylindrical from M18 to M30
  • Rectangular Q26

Main features
  • Connection type 2-wire or 3-wire
  • Voltage type DC or AC/DC
  • Connection cables, connectors