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Closed loop tension principle

1. Force sensors measure the effective material tension

2. The tension controller amplifies the measured signal from the force sensor and calculates an output value from the difference between the reference and feedback values

3. The drive, brake, or clutch converts the output value from the tension controller into corresponding torque or speed

4. Constant tension in the process material can be maintained
Advantages

- Defined, adjustable material tension
- Reproducible values in physical units
- Known manufacturing conditions for finished products
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