Turck’s new insusceptible position sensor can replace magnetostrictive and potentiometric solutions

For the first time ever Turck combines the benefits of magnetostrictive and potentiometric solution with ist new series of linear displacement sensors. The new LI-Q25 series is an interference-free solution for measuring ranges between 100 and 1000 mm. The analog sensors provide a 1 µm resolution (repeat accuracy: 25 µm) and are specially suited for applications that could not otherwise be solved efficiently due to technical restrictions, such as metal-processing machines, rolling mills or injection molding machines.
The IP67-rated sensors Turck will present at the SPS trade show are based on the resonator principle. Unlike magnetostrictive or magnetic inductive position sensors, the LI-Q25 does not require a magnetic positioning device. Instead, the position is detected via a resonant circuit. In this way, splinter accumulations that can affect the sensor’s function are eliminated. Moreover, having a completely sealed housing prevents dirt or dampness from affecting the rugged sensor.

Because of the specially designed coil-system, the output signal is not affected by the distance between the sensor and the positioning device. In this way, measuring errors caused by minor deviations can be prevented – significantly increasing process reliability. Different output configurations (0 to 10 V, 4 to 20 mA, IO-Link, SSI) and optional mounting accessories additionally increase the sensor’s applicability.