Displacement sensor error universality detection apparatus

Abstract

The invention discloses a displacement sensor error universality detection apparatus, and aims to provide an apparatus which has the characteristics of high and reliable precision, great universality and high detection efficiency, and can be compatible with detection of displacement sensors of various types. In the technical scheme, a support (6) is provided with a linear guide (1) for assembling a scale (2), and a displacement sensor to be detected (7) and a stay rope connector (8) of the displacement sensor which are fixed on the installation surface plate (12) at one end of the support (6); a slide block (4) moving along the linear guide (1) is arranged under the scale (2), is provided with a dial pointer, and is in fixed connection with a connecting clamp (3) of the parallel scale (2); the end of the connecting clamp (3) is provided with a stay rope binding head capable of rotating around the axis of a positioning screw rod, and is coaxially connected to the positioning screw rod (5) through a handle tube fixedly connected to the slide block (4); a central axis is located on the connecting line of the stay rope connector (8).

Description

technical field [0001] The invention relates to a detection device mainly used for detecting the error of a displacement sensor. Background technique [0002] Displacement sensor, also known as linear sensor, is a linear device that belongs to metal induction. The function of the sensor is to convert various measured physical quantities into electricity. Displacement is a quantity related to the movement of the object's position during motion, and the range of displacement measurement methods is quite extensive. Small displacements are usually detected by strain gauge, inductive, differential transformer, eddy current, and Hall sensors, and large displacements are usually measured by sensing technologies such as inductive synchronizers, gratings, capacitive grids, and magnetic grids. Among them, the grating sensor has the advantages of easy digitalization, high precision (currently the highest resolution can reach the nanometer level), strong anti-interference ability, no a...

AI Technical Summary

Problems solved by technology

At present, the error detection of the displacement sensor still adopts the slider pull ring hook method for error detection. The disadvantage of this error detection is that: due to different products, different installation methods, and different measurement accuracy and range, this error detection will cause every production. One type of displacement sensor needs to be equipped with a corresponding detection equipment, which not only greatly increases the cost input, but also occupies a large area and is very heavy, which is very unfavorable for the development of assembly site debugging work

Secondly, the connection between the slider and the sensor is a soft connection, and it is difficult to accurately judge and adjust the zero position. Especially for the displacement sensor with a bayonet type connection, the existing error detection device is not applicable

In addition, this relatively old-fashioned error detection slide rail has a complicated manufacturing process, and after a long time, the sliding state is unstable, and the displacement cannot be accurately adjusted, resulting in inaccurate readings.

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