Magnetic proximity sensor
max. 70 mm
ifm electronic
Magnetic sensors are used for the detection of positions without contact or wear and tear in control technology. They are used where inductive sensors reach their limits.
The advantage
Compared to inductive sensors magnetic sensors have a considerably higher sensing range and smaller housings. Sensing ranges up to 70 millimetres are standard. With special magnets, sensing ranges of even 90 millimetres or more can be achieved. Only prerequisite: The object to be detected must be equipped with a magnet because the sensor only responds to magnets. Since magnetic fields penetrate all non-magnetisable materials, the sensors can detect magnets through walls made of non-ferrous metal, stainless steel, aluminium, plastic or wood. A magnetic sensor is for example often used in the food industry in connection with 'pigs' - cleaning devices which pass through the inside of pipes. By means of magnetic sensors their exact position can be detected from the outside through the wall of the stainless steel pipe.
