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Prism frame for height measurement

A technique of elevation measurement, prism frame

Pending Publication Date: 2019-12-06
BEIJING URBAN CONSTR GROUP
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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 provide a prism frame for height measurement, which solves the problem that it is impossible to check and eliminate wrong data when measuring height

Method used

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  • Prism frame for height measurement
  • Prism frame for height measurement
  • Prism frame for height measurement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to Figure 1~2 , the application provides a technical solution:

[0026] A prism frame for height measurement, comprising a frame 3, a first support rod 2, a second support rod 1, and a third support rod 4 arranged on the frame 3 from bottom to top in sequence, the first support rod 2 1, the second support rod 1, the third support rod 4 are all fixedly connected with the prism frame 5 for height measurement, the prism frame 5 is provided with prisms 6, the spacing of the prisms 6 is equal and located on the same vertical line , the projection of the center of the prism 6 in the vertical direction coincides with the center of the horizontal disk of the total station below the frame 3 .

[0027] During height measurement, there are many factors that affect the measurement results, including the thermal expansion and contraction of the measuring instrument, the angle of the prism and the observation lens of the instrument cannot be completely in a straight line, etc...

Embodiment 2

[0036] As other structures of the support rods, the first support rod 2 in the first embodiment is located inside the bottom of the frame 3, the third support rod 4 is located inside the top of the frame 3, and the second support rod 1 is located inside the middle of the frame 3 And it is located on both sides of the prism frame 5 . The positions of the first support rod 2 and the third support rod 4 remain unchanged, and the second support rod 1 is fixed at both ends, which is more stable than the vertical connection method.

Embodiment 3

[0038] In order to facilitate the installation and movement of the prism frame, the bottom of the frame 3 in the first embodiment is provided with an elastic connecting clip 7, and the connecting clip 7 is matched with the handle on the top of the total station. The elastic connecting clamp 7 is directly clamped on the top of the total station, and since the connecting clamp 7 matches the handle, it can be ensured that the frame 3 remains on the same plane as the total station after being connected to the total station. In this way, the method of punching holes on the top of the total station is avoided, which is not only convenient for installation, but also can be disassembled when not in use, reducing the volume of the instrument and facilitating transportation and movement.

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PUM

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Abstract

The invention discloses a prism frame for height measurement. The prism frame comprises a framework, a first support rod, a second support rod and a third support rod, wherein the first support rod, the second support rod and the third support rod are sequentially arranged on the framework from bottom to top, prism racks are fixedly connected to the first support rod, the second support rod and the third support rod and are used for height measurement, prisms are arranged on the prism racks, the distances among the prisms are equal, the prisms are arranged on the same vertical line, and projection of centers of the prisms in a vertical direction is coincided with a center of a total-station horizontal disc below the framework. By the device, error data can be rapidly verified after the height measurement data is acquired, the error data is timely eliminated, and the effectiveness of the measurement is ensured.

Description

technical field [0001] The invention relates to the field of engineering construction measurement, in particular to a prism frame for height measurement. Background technique [0002] In surveying and mapping, to measure the height difference between two points A and B, when the slope is small (<5 degrees), generally use geometric leveling; Elevation measurement, in triangular elevation measurement, due to the influence of the earth's curvature and atmospheric refraction, there are large errors in the measurement data, but the above errors can be offset by the opposite observation. For example, observe the vertical angle and slant distance from point A to point B, and observe from point B to point A at the same time, and take the average value as the observation result. When the distance between A and B is long, multiple measuring stations are often needed. In order to speed up the observation, two total stations are used for simultaneous observation. The upper part of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 侯广斌李北超张明宇于彬陈稷王生文黄强
Owner BEIJING URBAN CONSTR GROUP