Sounding out constant tension

Citation

(2003), "Sounding out constant tension", Sensor Review, Vol. 23 No. 4. https://doi.org/10.1108/sr.2003.08723dad.001

Sounding out constant tension

Sounding out constant tension

Keywords: Ultrasonic, Distance measuring

To complement its range of products for tensioning applications, Huco has introduced a new ultrasonic sensor for measuring web diameter, a critical element in maintaining constant tension (Plate 1). A new addition from Placid Industries – the manufacturers of magnetic particle clutches and brakes for which Huco is the sole UK distributor – this sensor is a superior alternative to standard potentiometer braking systems. It is easier to use, more reliable as it has no moving parts and is less vulnerable to dust ingress.

Plate 1 Huco has introduced a new ultrasonic sensor for measuring web diameter, a critical element in maintaining constant tension

The new ultrasonic sensor continuously monitors the profile of the web and outputs this data as a 0-10V DC signal to the placid power supply so that torque automatically varies as roll-size changes. Tension is then adjusted by a remotely mounted potentiometer. With a resolution of 2 mm and repeatability of 4 mm, the ultrasonic sensor is designed to be used both with placid brakes for producing unwind or payout tension or placid clutches for rewind tension.

For further information, please contact: Huco Engineering Industries Limited, Merchant Drive, Hertford, Herts SG13 7BL. Tel: +44(0)1992 501900; Fax: +44(0)1992 500035; E-mail: hei.sales@huco.com