Industrial linear position sensor with extended environmental spec.

December 02, 2013 // By Graham Prophet
Variohm EuroSensor has introduced a potentiometric linear position sensor featuring IP67 sealing, improved reliability and increased operational temperature capability.

For challenging applications in industrial measurement, the VXP series is based on the VLPM motorsports potentiometric sensor and its industrial application oriented coutnerpart, the VLP. Design improvements across both versions include a new dual-lip sealing arrangement, and improved materials on the VXP that have enabled an IP67 rating and a higher temperature capability of -40 to +150ºC with a short term ceiling of 175ºC.

The VXP linear position sensor is an absolute position measuring device available for stroke lengths from 25 to 290 mm in nine standard models. The specification includes a typical independent linearity of ±0.1%, a positioning repeatability to 0.01 mm, shock rating of 50g for 10 msec, and a maximum speed up to 10 metres per second. Working life is better than 25 million cycles. Its 15 mm square anodised aluminium housing features self-aligning spherical bearing mounts for straightforward installation. Through the complete range, the ratio of the extended full measuring length to the body length remains the smallest available, for applications with restricted mounting space.

The conductive plastic resistance element technology utilised in the VXP and VLP series combines a resistance element built up by a specialised technique using multiple layers of printed inks that combine with multi-fingered precious-metal wipers secured in a unique elastomer damped mechanism. This sensor element technology maintains a constant, smooth and uninterrupted contact even under the demanding shock and vibration conditions.

Variohm EuroSensor;