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Linear displacement metering calibrator

A technology of linear displacement and calibrator, used in instruments, measuring devices, electrical devices, etc., can solve the problems of large errors and low measurement accuracy, and achieve the effects of reducing errors, improving measurement accuracy, and avoiding shock and vibration.

Inactive Publication Date: 2017-08-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art that the linear displacement sensor has not been calibrated after leaving the factory, the error is large, and the measurement accuracy is low. Accuracy, to ensure the accuracy of the measurement

Method used

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Experimental program
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Embodiment 1

[0032] Such as Figure 1-2 , a kind of linear displacement measuring and calibrating instrument described in the present invention comprises a base 1 and a linear displacement sensor 2, and also includes a clamping part 3, a moving part 4, a grating ruler 5 and an output device 6, and the clamping part 3 and The grating ruler 5 is arranged on the base 1, and the base 1 is also provided with two guide rails 8, the guide rails 8 are parallel to the grating ruler 5, and the moving part 4 moves on the guide rails 8 , the linear displacement sensor 2 is a resistive linear displacement sensor, the clamping part 3 is provided with a V-shaped groove, and the resistive linear displacement sensor is arranged in the groove of the clamping part 3 , the grating ruler 5 is a closed grating ruler, the resistive linear displacement sensor and the closed grating ruler are both connected to the output device 6, and the pull rod of the resistive linear displacement sensor is connected to the mov...

Embodiment 2

[0035] A kind of linear displacement measurement calibration instrument according to the present invention, its structure is roughly the same as that of Embodiment 1, and the difference from Embodiment 1 is that it also includes a control system and a drive system, and the control system is used to control the drive The system drives the moving part 4 to move to perform an automatic calibration process.

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Abstract

The invention relates to a linear displacement metering calibrator, and the calibrator comprises a substrate, a linear displacement sensor, a clamping part, a moving part, a grating ruler, and output equipment. The precision of the linear displacement sensor is less than the precision of the grating ruler, and the clamping part and the grating ruler are disposed on the substrate. The linear displacement sensor is disposed on the clamping part, and the linear displacement sensor and the grating ruler are respectively connected to the output equipment. A pull rod of the linear displacement sensor is connected with the moving part, and is parallel to the grating ruler. The moving part is fixedly connected with a measuring head of the grating ruler. The calibrator can calibrate the linear displacement sensor because the precision of the grating ruler is greater than the precision of the linear displacement sensor, improves the measurement precision of the linear displacement sensor, guarantees the accuracy of the linear displacement sensor, is simple in structure, facilitates the production, and is low in cost.

Description

technical field [0001] The invention relates to the field of measurement control, in particular to a linear displacement measurement calibration instrument. Background technique [0002] Linear displacement sensors have a wide range of applications, and are commonly used in industrial automation or building bridges, bridge monitoring, dam monitoring, and geological monitoring. The function of the linear displacement sensor is to convert the linear mechanical displacement into different output values ​​according to the linear displacement, and then judge the linear displacement. [0003] Usually the manufacturers of linear displacement sensors of the same type give a fixed linear displacement and proportional relationship, but each product will have individual differences, and there are also errors in use under different conditions. Therefore, the linear displacement sensor should be used before or after use. Calibration is required after a period of time in order to determi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/04G01B11/02G01B7/02
CPCG01B21/042G01B7/02G01B11/02
Inventor 周新志
Owner SICHUAN UNIV
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