New sensor is a breath of air for pneumatic cylinder makers

Sensor Review

ISSN: 0260-2288

Article publication date: 1 June 2000

Keywords

Citation

(2000), "New sensor is a breath of air for pneumatic cylinder makers", Sensor Review, Vol. 20 No. 2. https://doi.org/10.1108/sr.2000.08720bad.003

Publisher

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Emerald Group Publishing Limited

Copyright © 2000, MCB UP Limited


New sensor is a breath of air for pneumatic cylinder makers

New sensor is a breath of air for pneumatic cylinder makers

Keyword: Sensors

Specifically designed for position sensing in pneumatic cylinders, the new AGO07-07 magnetic sensor from Rhopoint Components will also find other applications where sensitivity and small size are important (Plate 3).

Based on giant magnetoresistive (GMR) technology, the sensor has a digital switch with tightly controlled magnetic operate and release points. Other features are low power consumption and reverse battery protection. A useful feature is a bright yellow LED to indicate the presence of the magnetic field. Apart from position, the AGO07-07 can also detect speed and the direction of motion. The small, slim profile has been designed to fit within the vanes of a typical cylinder extrusion, making the sensor non-obtrusive and easy to accommodate within cylinder designs.

Plate 3 Rhopoint offers new giant magnetoresistive (GMR) sensors from NVE

GMR sensors outperform other sensing technologies such as Hall Effect and anisotropic magnetoresistive (AMR). Essentially, the sensors work because of the giant magnetoresistive effect that changes the electrical resistance when stacked layers of ferromagnetic and non-magnetic materials are exposed to a magnetic field. GMR sensors are ideal for linear or rotary speed detection, linear or rotary position sensing, current sensing and magnetic field sensing.

For further information contact: Chris Binsley, Rhopoint Components Ltd, Holland Road, Hurst Green, Oxted, Surrey, RH8 9AX, UK. Tel: +44 (0) 1883 717988; Fax: +44 (0)1883 712938; E-mail: components@rhopoint.co.uk