Non-contacting angular position

Keywords: Sensors, Rotor, Electronics

The new, 360 degree, sealed, non-contacting rotary sensor from BEI Duncan Electronics is only 8mm thick. The Ultra Thin NCAPS sensor has been developed to provide a cost effective, high resolution, rotary position sensor suitable for many markets including aerospace (Plate 5).

The ultra thin module is fully tested and supplied as a packaged unit with sealed rotor and mating connector. It is thought to be ideal for installation where there are tight packaging constraints.

NCAPS technology claims true, 360 degree, absolute position feedback at speeds up to 18,000rpm. Using the phase shift principle, it is not sensitive to power supply voltage fluctuations. As the sensor has only one moving(electrically passive) part it can be mounted directly on to the input shaft. Its sealed design reportedly makes it particularly suitable for environments where particle contamination and high humidity would cause optical based sensors to lose reliability.

Plate 5 New Non-Contacting Angular Position Snesor (NCAPS) is ultra thin

Three standard output formats are available, analogue, PWM (pulse width modulation) and dual triangle, which provide users with a choice of flexible electrical interfaces for different applications. Sensors are supplied preprogrammed with the preferred option and other custom outputs are available to special order.

The Ultra Thin NCAPS sensor is part of BEI's extensive range of non-contacting sensors that also include optical encoders and Hall effect sensors. All provide reliable and accurate position sensing for a wide range of applications.

Details available from: BEI Technologies Inc. Tel: +44 (0) 130 381 2778; Fax:+44 (0) 130 381 2708; E-mail: info@bei-technologies.co.uk;Web site: www.beiduncan.com