The operating principle of capacitive proximity sensors is similar to that of inductive sensors. An electromagnetic field is generated by a capacitor located on the main side of the sensor. A nearby part changes the intensity and frequency of oscillations. Unlike inductive sensors, capacitive sensors do not only detect metal parts, but parts of all shapes and materials (solid, liquid, viscous, powdery, etc.).
The main characteristics of capacitive sensors are:
...
ultrasonic proximity sensor
SU series
Measuring range: 40 mm - 300 mm
... • M18x1 mm ultrasonic sensors. • PNP/NPN digital output with NO or NC programmable logic. • 40-300 mm sensing range with programmable point via External Teach. • M12, 4 pin connector output. • Short and lightweight plastic ...
inductive proximity switch
proxi-captor 20xx.xx / 21xx.xx
Measuring range: 40, 100, 80, 45, 90 mm
... The analogue proxi-captor 2400.xx / 2500.xx is an inductive proximity switch in a remote system, which can be combined with a separate coil of the type 28xx for different applications to the customer specifications. It ...
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