Stay wire type displacement measuring device and measuring object moving method

Abstract

The invention discloses a stay wire type displacement measuring device and a measuring object moving method. The device comprises an outer housing which is connected with a pulley rotating shaft a and a pulley rotating shaft b in a penetrating manner; the part, located in the outer housing, of the pulley rotating shaft a is connected with a first pulley in the housing in a penetrating manner; the part, located outside the outer housing, of the pulley rotating shaft a is connected with a first pulley outside the housing in a penetrating manner; the part, located inside the outer housing, of the pulley rotating shaft b is connected with a second pulley inside the housing in a penetrating manner; the second pulley inside the housing is connected with a strain measurement module; the outer wall of one end of the outer housing is connected with a panel through an external measuring assembly; the end, away from the outer hoousing, of the panel is connected with the second pulley; the second pulley is in transmission connection with the first pulley outside the housing through a stay wire a; and the first pulley in the housing and the second pulley in the housing are in transmission connection through a stay wire b. During measurement, the stay wire is bound on a measured object, the sensor is turned on, and the displacement and the speed of the object can be obtained by reading an output signal when the object moves. According to the device, the test range of the stay wire displacement sensor is expanded, and the high accuracy of a measurement result is ensured.

Description

technical field [0001] The invention belongs to the technical field of cable displacement measurement, and in particular relates to a cable displacement measuring device, and also relates to a method for measuring object movement by the cable displacement measuring device. Background technique [0002] Displacement sensors play an increasingly important role in modern industrial fields, and are essential front-end units and key components in information acquisition systems and automation control systems. When in use, the pull wire displacement sensor is installed in a fixed position, the pull wire is tied to the moving object, the linear motion of the pull wire is aligned with the moving axis of the moving object, and an electrical signal proportional to the movement of the measured object is output during the movement. The output signal can yield the displacement, direction or velocity of the moving object. [0003] When performing long-distance measurements, it is often n...

AI Technical Summary

Problems solved by technology

Taking the domestic cable displacement sensor as an example, the price of a 10m cable displacement sensor is generally more than 5,000 yuan, while the imported sensor is as high as tens of thousands of yuan, and most of the existing large-range cable displacement sensors have low resolution, poor sensitivity, and difficult measurement accuracy. Guaranteed shortcomings, which to some extent limit the application of large-range wire displacement sensors

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