Linear position sensors with digital signal conditioned voltage or current output

12 November 2013

Based on its VLP series potentiometric output sensors, Variohm EuroSensor’s new VLPSC linear position sensor adds integrated signal conditioning electronics with an autosensing 0 -10 VDC or 4-20 mA proportional digital output.

The digital signal conditioner offers a 12-bit resolution with linearity to 0.1% and good repeatability in a choice of nine standard measurement ranges from 25 to 290 mm.

The sensor has spherical bearing mounts in a 15mm square housing design and provides IP65 ingress protection in a compact design that keeps the overall sensor length short.

The signal conditioner adaptation also provides a teach function for the start and end datum position references of the sensor which is achieved via a stand-alone procedure using a separate input rather than more complex computer programming.

The VLP measurement technology used in the new sensor features a conductive plastic resistance element that is built up by the application of several layers of specialised printed inks. This combines with a patented elastomer damped multi-fingered precious metal wiper arrangement that ensures smooth and uninterrupted contact with low electrical noise, even under the most demanding physical and environmental conditions.

The VLPSC has an operating temperature rating of -40 to +90 ºC, a supply voltage rating of 24 VDC +/- 20%, and is supplied with 3m leads.