Ultrasonic Sensors

MAINTAIN CONSTANT TENSION – The ultrasonic sensor is used for maintaining constant tension when using a brake for producing unwind (payout) tension, or when using a clutch for rewind tension.

The sensor measures the diameter of the roll & sends a 0-10 VDC signal to the Placid power supply. Torque is automatically varied as roll size changes, to keep tension constant. Tension is adjusted by a remotely mounted potentiometer. The sensor measures distances by sending an ultrasonic pulse of sound, and then measuring the time for the return echo pulse.

Technical Drawings
 
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Model Power Input
(VDC)
Range
(inches)
Output
(VDC)
Resolution
(inches)
Repeatability
(inches)
Temperature
(oF)
Protection Class
Model
U-B
Power Input
(VDC)
15-30
(35 mA max)
Range
(inches)
3.9-39.3
(100-1000 mm)
Output
(VDC)
0-10
(20mA max)
Resolution
(inches)
0.012
(<0.3mm)
Repeatability
(inches)
0.02
(<0.5mm)
Temperature
(oF)
14-150
(-10 to +60oC)
Protection Class
IP67
(sealed plastic case)