Sensor keeps track of web diameter
A
Huco Dynatork product story
Edited by the Engineeringtalk editorial team
Mar 21, 2003
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.
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.
A new addition from Placid Industries - the manufacturer 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.
The new ultrasonic sensor continuously monitors the profile of the web and outputs the 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 2mm and repeatability of 4mm, the ultrasonic sensor is designed to be used both with Placid brakes for producing unwind or payout tension or Placid clutches for rewind tension.
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