Magnetic cylinder sensors
Magnetic cylinder sensors are used to detect the position of pistons in pneumatic cylinders. They are attached directly to the cylinder body and operate according to the same principle as for magnetic proximity sensors.
They detect a ring magnet in the piston through the housing wall made of non-magnetisable material (aluminium, brass, stainless steel).
Response sensitivity
The magnetic induction of pneumatic cylinders is between 5 and 25 mTesla. A response sensitivity of 3 mTesla is enough to ensure signal triggering. The sensitivity of 3 mT is a guide value which depends on the design of the cylinder.
Traverse distance
The traverse distance is between 5 and 20 mm, depending on the cylinder's construction (wall thickness, diameter, and magnetic induction). The typical hysteresis is 1 mm and remains constant.
Actuating speed
The short response times of the sensors allow actuating speeds of up to 5 m/s.
