The Turck Q25L sensor is a magnetically actuated linear displacement sensor designed to detect piston position on pneumatic cylinders. Available with measuring ranges of 100, 125, 160 and 200 mm, the sensor is suitable for applications that require precise signal transmission over long measuring distances, such as pneumatic pumps, slides, blanking or moulding systems. By using an external magnet as a position indicator, the sensor may be used in additional applications such as moving platforms, point line measurement or other specially designed equipment where a cylinder is not present.
Like Turck’s other cylinder position sensors, the Q25L detects the position of a piston on standard pneumatic cylinders using a series of Hall elements that sense the piston magnet and send a signal back to the processor. The sensor has a repeat accuracy of less than 0.1% of the measuring range and a linear deviation of less than 1% of the full scale. It also features a blind zone of only 20.5 mm on each end, making it easy to apply in space-restricted areas.