Turck LI-Q17 miniature linear displacement sensor

Designed for very short measuring ranges between 50 and 200 mm, Turck has developed a miniature linear displacement sensor, the LI-Q17, uniting all the positive qualities of customary measuring systems in one solution. The LI-Q17 doesn’t work with a magnetic locator but with the resonant circuit measuring principle, where an object’s position is detected via an inductive oscillating system, consisting of a condenser and a coil. The sensor is able to work reliably where the functionality of a magnetic position device is massively affected by electromagnetic fields - caused by large motors or welding plants.

In an IP67-rated housing, the sensor is available in four different sizes with the measuring ranges 50, 100, 150 and 200 mm for a temperature range from -40 to +70°C. The first models have an analog output (0-10 V, 4-20 mA, 0.5-4.5 V), and a high-resolution SSI model is going to follow. Despite its compact design, the sensor family has short blind zones of 10 mm at the connecting end and 22 mm at the head end. For the connection, a pigtail with a 30 cm cable and an M12 connecter is required, or an open connection line of 2 m is needed. Because of the thought-out assembly concept, the user can install and operate the sensor and the provided standard accessories quickly and easily. Robust metal clips can be latched into the housing of the sensor and allow either a vertical or a horizontal installation. The electronic module of the position generator is pivoted and allows an exact positioning corresponding to the installation situation. If an application needs a special measuring range, the user can program this on site.