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What are the characteristics of the draw wire displacement encoder in use

   The draw wire displacement is composed of wire, drum and spring-driven machinery and encoder.When large measurement ranges are required, compact sensors are used. Usually, the wire rope is made of tensile strength and polyamide coating to protect the environment. The uniform thickness of the wire rope is about 0.8mm depending on the measurement range.

   Linear motion is converted into rotational motion by using a draw wire displacement encoder.The free end of the wire is fixed to a moving object.At the open end of the wire is a threaded shaft, optional by the user, for fixing the measuring object.The encoder then converts the rotational motion generated by the extension of the line into an electronic signal.The spring-driven motor provides sufficient line pretension.This is a spring with a torque load, similar to clockwork mechanics.The more wires you pull out, the greater the tension in the spring.The advantage of this method is that it reduces wire droop under the horizontal setting.

   When higher requirements for service life or accuracy are required, encoder-based sensor elements can be relied upon, as in the case of tracing instrumentation.Here, you need to achieve a +/-0.01% linearity and longer service life of the measurement range.In addition, displacement sensors need to be controlled through digital interfaces, which are increasingly used in medical technologies.The frequency of the sensor determines the accuracy of the measured object, so the selection of the corresponding frequency must be within the range of actual measurement. However, in the practical application of the displacement sensor, all products will have a certain signal delay, and the smaller the delay time, the faster the signal transmission rate will be.

   Due to the influence of the structure, the frequency response speed of the draw wire displacement encoder has been determined, and the inertial impact of the spring results in the decrease of the signal frequency in the mechanical structure.




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