Turck LI inductive linear position sensor

The LI inductive linear position sensor is suitable for closed-loop control applications. It has new electronics architecture that increases the effective output rate of the sensor from 1 to 5 kHz. In conjunction with the short signal run time (130 µs) and the highly resolved SSi output, the sensor can achieve the performance of potentiometers but without their disadvantages. Unlike potentiometers, the LI sensors offer permanent protection to IP67, provide non-contact measuring and are wear-free.

The magnetic field immune sensors are suitable for measuring axes with high-speed controls such as those used in injection moulding machines. Other application areas include axis measurement in packaging machines, presses or machine tools.

With the high speed and precision of the sensor (system resolution of 1 µm), machine builders can keep the position error in motor control applications to a minimum. As with all inductive linear position sensors, the high-speed variant has very short blind zones and can tolerate up to a 4 mm offset of the positioning element (perpendicular to the measuring axis). As well as the high-speed variant with an SSI interface and 16-bit resolution, the analog variant of the sensor will also be available in the future with the higher output rate of 5 kHz. The analog sensor has a 0 to 10 V or 4 to 20 mA output.

All LI sensors are available in 10 measuring lengths from 100 to 1000 mm. An 8-pole M12 connector is used for the connection.