Roundss the draw wire sensor .！

The function of the rope-type displacement sensor is to convert the mechanical motion can be measured, recorded or transmitted electrical signals. The cable displacement sensor is wound on a threaded hub by a stretchable stainless steel rope, which is connected to a precision rotary inductor, which can be an incremental encoder, an absolute encoder, a hybrid or conductive plastic rotation Potentiometer, synchronizer or resolver.
In operation, the rope-type displacement sensor installed in a fixed position, the rope tied to a moving object. The straight line of the rope and the axis of the moving object are aligned. Movement occurs, the rope stretching and contraction. An internal spring ensures that the tension of the drawstring is constant. The threaded hub drives the precision rotary sensor to rotate and output an electrical signal proportional to the distance traveled by the rope. Measuring the output signal can be derived moving object displacement, direction or rate.
The common parameters are measuring travel, output signal mode, linearity, repeatability, resolution, wire size, outlet tension, round-trip speed, weight, input resistance, power, operating voltage, operating temperature, vibration, protection class.

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