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Draw-wire displacement and position sensors are essentially electronic tape measures and measure the linear movement of a component using a wire made of highly-flexible stainless steel strands, which is wound onto a drum by means of a long-life spring motor. The measuring drum is axially coupled with a multi-turn potentiometer, an incremental encoder, or an absolute encoder. With the draw-wire principle, a linear movement is transformed into a rotary movement and then converted into a resistance change or into countable increments.
Unit of Measure

Specifications

Measurement Range

 N/A 3 to 15 m

Analog Output

 N/A Current Potentiometer Voltage

Digital Output

 N/A CO HTL PB SSI TTL

Advantages

N/A

  • Very accurate
  • Long measuring ranges
  • Robust and compact
  • Easy installation and handling
  • Compact design
  • Excellent price/performance ratio

Additional Information

N/A Draw-wire displacement sensors measure the lifting height on forklift trucks. With its compact construction, users can acquire lifting heights of up to 30 m.

Miniature draw wire sensors monitor the satellite release process from the Ariane booster rocket.

Draw-wire sensors monitor the height of lifting platforms on automobile production lines.

wireSENSOR mechanics
The mechanical options P96, P115 and P200 series are designed for easy mounting of a customer-specific encoder.

Compact, dependable and economical
The different sensor model ranges cover the complete application spectrum of draw-wire sensors. The miniature sensors are very favourably priced and are suitable for integration in tight installation spaces due to the miniaturized design. The industrial sensors are of extremely rugged construction and are employed in applications with large measurement ranges. A clear advantage of this draw-wire measuring principle is that the measuring cable can be diverted over deflection pulleys. This property differentiates draw-wire sensors from other measuring principles which normally only measure on one axis.

The sensor housings are kept extremely compact. The well-conceived sensor design enables large measurement ranges to be realized in a space-saving manner. Since only high quality components are used, the rugged sensors have an extremely long life - even in continuous use under industrial conditions.