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Device for measuring center coordinates of cylindrical structure by circumcircle method

A center coordinate, cylindrical technology, which is applied in the field of devices for measuring the center coordinates of cylindrical structures, can solve the problems of low accuracy of the center coordinates, and achieve the effects of improved accuracy, low cost, and improved measurement accuracy.

Inactive Publication Date: 2018-11-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcoming of the low accuracy of the circle center coordinates measured in the prior art, and propose a device for measuring the center coordinates of cylindrical structures by using the circumscribed circle method

Method used

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  • Device for measuring center coordinates of cylindrical structure by circumcircle method

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Embodiment 1: A device for measuring the central coordinates of a cylindrical structure using the circumscribed circle method includes: 3 levels 1, 3 telescopic devices 2, 3 horizontal bubbles 3 and 3 total station test prisms 4;

[0014] The three levels 1 are connected into an equilateral triangle, each level 1 is provided with a telescopic device 2, the length of the level 1 is adjusted by the telescopic device 2, and each level 1 is centered with a horizontal bubble 3, adjacent A total station test prism 4 is arranged at the junction of the two levels 1 .

[0015] The level 1 part is composed of three Invar rulers with telescopic devices 2 and horizontal air bubbles 3. Among the three connection points of the three level rulers 1, two connection points are connected by Invar hinges, and the other connection point is connected by a butterfly bolt necklace. The horizontal air bubble 3 is arranged on the outside of the level ruler 1, and the Invar ruler is equipped wit...

specific Embodiment approach 2

[0021] Specific embodiment two: this embodiment is different from specific embodiment one in that: the total station test prism 4 includes a prism lens 4-1 and a prism rod 4-2;

[0022] Prism lens 4-1 is arranged on one end of level ruler 1 by prism rod 4-2, and three prism rods 4-2 are respectively arranged on three vertices of the equilateral triangle formed by three level rulers 1, and prism rod 4 -2 is perpendicular to the plane in which the equilateral triangle lies.

[0023] Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0024] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the level 1 is an Invar ruler.

[0025] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention relates to a device for measuring center coordinates of a cylindrical structure by a circumcircle method and aims to solve the problem of low precision of center coordinates measured inthe prior art. The device comprises three level rulers, telescopic devices, level bubbles and three total station testing prisms. The three level rulers are connected to form an equilateral triangle,each level ruler is provided with one telescopic device, the length of each level ruler is adjusted through the corresponding telescopic device, each level bubble is arranged at the center of the corresponding level ruler, and each total station testing prism is arranged at one end of the corresponding level ruler and comprises a prism head and a prism rod. Each prism head is arranged at one end of the level ruler through the corresponding prism rod, the three prism rods are arranged at three vertexes of the equilateral triangle formed by the three level rulers respectively, and the prism rodsare perpendicular to the plane of the equilateral triangle. The device is applied to the field of bridge detection.

Description

technical field [0001] The invention relates to a device for measuring the coordinates of the center of a cylindrical structure. Background technique [0002] In the measurement of bridges and structures, in order to ensure that the structures meet the design requirements, it is often necessary to measure the center coordinates of bridge piers or cylindrical structures. At this stage, most of the measurements use the three-point circle method without prisms. , but because the method of measuring the coordinates of fixed points by using the total station without prism method is not high enough, the precision of the measured circle center coordinates is not high. In order to achieve measurement accuracy, the present invention develops a measuring device for calculating the center of a circle by the three-point method of the circumscribed circle. Contents of the invention [0003] The purpose of the present invention is to solve the shortcoming of the low accuracy of the cir...

Claims

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Application Information

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IPC IPC(8): G01B11/00
CPCG01B11/005
Inventor 曲德超乔佳伟
Owner HARBIN INST OF TECH