Magnetic Field Sensors

For non-contact, wear-free position detection of pneumatic cylinder piston position. Balluff magnetic field sensors use magneto-resistive technology to detect the piston magnet through the aluminum wall of the cylinder. Typically two sensors are employed to provide end-of-stroke detection in both directions. Advantages of Balluff magnetic field sensors include universal compatibility with either "Hall Effect" or "Reed Switch" cylinder magnet polarizations, reduction or elimination of double switch points, higher noise immunity, and elimination of electrical contact wear and sticking.