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High-precision inclinometer calibration method

A calibration method and technology of inclinometers, applied to instruments, measuring devices, etc., can solve the problems of large influence, large calibration errors, and poor measurement synchronization, and achieve the effect of good measurement synchronization and small calibration errors

Active Publication Date: 2017-06-13
CCCC FIRST HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the actual operation of the existing technology, it is greatly affected by the external environment, the measurement synchronization is poor, and the calibration error is large

Method used

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  • High-precision inclinometer calibration method

Examples

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Embodiment 1

[0030] Such as figure 1 , a high-precision inclinometer calibration method, comprising steps:

[0031] A. Initial value of shallow dock collection:

[0032] In this embodiment, before the initial value is collected, preparatory work needs to be carried out, specifically equipment and tools are prepared. On the basis of relatively stable land, data output and stability testing of the static level are carried out (i.e. figure 1 "Static level test" in the "Static level test"), and at the same time select the layout position of the static level;

[0033] The pipe joint to be installed of the immersed pipe enters the shallow dock area, and a number of static levels and the first inclinometer are installed in the pipe joint to be installed (when the static level is installed, it is installed on the side wall and the middle of the roadway of the pipe joint. On the fixed base on the ground of the pipe gallery, that is figure 1 "Installation of the static level base", when the stati...

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PUM

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Abstract

The invention relates to the field of sinking pipe calibration measurement, in particular to a high-precision inclinometer calibration method, comprising the steps of charging a segment, to be mounted, of a sinking pipe to a shallow dock area, mounting a hydrostatic level and a first inclinometer in the segment to be mounted, and using the hydrostatic level and the first inclinometer to acquire initial inclinations of the segment to be mounted; charging the segment to be mounted to a deep dock area, mounting a second inclinometer, and using the initial inclination of the segment measured by the hydrostatic level to calibrate the second inclinometer; after the second inclinometer is calibrated, comparing with the initial inclination acquired by the first inclinometer; after qualification is verified, mounting the segment on a bed. The invention is intended to provide the high-precision inclinometer calibration method having low external environmental impact, good measurement synchronism and small calibration error.

Description

technical field [0001] The invention relates to the field of calibration and measurement of immersed tubes, in particular to a calibration method for a high-precision inclinometer. Background technique [0002] During the installation of immersed tubes, the level method is generally used to control the inclination of the immersed tube joints, specifically: [0003] Set up a level in the middle of the pipe joint, observe the elevation of the four corners of the immersed tube in a stable state, calculate the heel and pitch of the immersed tube at this time according to the measured data, and make a difference with the inclinometer reading displayed in the software Make corrections so that the software display is consistent with the actual inclination of the pipe joint. Then, use a certain segment to calibrate the elevation point once to check and correct, and check whether the correction using the four corner points of the pipe joint is consistent with it. If it is consistent,...

Claims

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Application Information

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IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 刘兆权张超季浩华孙阳阳锁旭宏成益品张秀振陶振杰宋江伟徐良
Owner CCCC FIRST HARBOR ENG
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