Products
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Draw-Wire Sensor – Operating Principle
A measuring wire wound on a precision drum is pulled out by the moving object and retracted by a return spring. The drum rotation is passed via a coupling or measuring gear to a signal converter, which can work inductively, magneto-resistively or opto-electronically.
- Measuring drum with return spring and measuring wire
- Coupling or measuring gear to the signal converter
- Inductive, magneto-resistive or opto-electronic conversion
Draw-Wire Sensor – Inside View
Cut-away view of a draw-wire position sensor showing its main parts: measuring rope, rope drum and spring, shaft coupling, sensor and transducer electronics with M12 connector.
- Measuring rope with quick-release clip
- Spring-loaded rope drum
- Shaft/coupling, sensor and transducer with M12 connector
Draw-Wire Mechanics SZG140
Robust draw-wire mechanics with a hollow-shaft clamping collar, so a standard rotary encoder can be mounted directly. A simple way to measure linear position and travel on machines, lifts and cylinders.
- Draw-wire mechanics for mounting a rotary encoder
- Hollow-shaft clamping collar
- Mounting foot with fixing holes
Need a specific model, a replacement for an installed unit or help choosing? Send the model or part number or ask an engineer.
Supplied and supported by NSPL as a principal partner of Wachendorff Automation.