Special device for measuring large curvature radius and measuring method

A special device, a technology of radius measurement, applied in the field of measuring instruments, can solve problems such as measurement difficulties, and achieve the effects of simple measurement process, effective and fast storage, and easy portability

Active Publication Date: 2017-04-05
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the difficult problem of on-site measurement of the radius of curvature of the existing large curved surface structure, the present invention proposes a special device for measuring the radius of curvature

Method used

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  • Special device for measuring large curvature radius and measuring method
  • Special device for measuring large curvature radius and measuring method
  • Special device for measuring large curvature radius and measuring method

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] like Figure 1-2 The special device for measuring the large curvature radius shown is to install a handle 9 on the bottom of an elastic U-shaped bracket 6, and fix a high-elastic steel sheet 1 between the two ends of the U-shaped bracket 6, and the U-shaped bracket 6 is opposite to the height. The elastic steel sheet 1 provides tension to ensure that the high-elastic steel sheet 1 is in a straightened state; rollers 5 are respectively installed on the two ends of the U-shaped bracket 6 to realize uninterrupted real-time measurement on the surface of the structure; A strain gauge 2 is pasted on the central part of the front and back sides of the sheet 1 (see figure 2 ); when the roller 5 moves freely on the surface of the arc structure 10, it is ensured that the bottom surface of the high elastic steel sheet 1 is pasted with the strain gauge 2 and the surface o...

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Abstract

The invention discloses a special device for measuring a large curvature radius and a measuring method. The special device is characterized in that a handle is mounted on the bottom of an elastic U-shaped bracket, and a high elastic steel sheet is fixed between two ends of the U-shaped bracket; rollers are installed on the two ends of the U-shaped bracket; strain gauges are pasted on the centers of the front and back sides of the high elastic steel sheet; the handle is equipped with a wireless strain collector; the two strain gauges and the wireless strain collector form a half-bridge measuring circuit by means of wires; it is required that the high elastic steel sheet can be freely bent without plastic deformation after bearing force. According to the special device, the strain gauges are pasted on both sides of the elastic steel sheet which can be freely bent without plastic deformation, so that the strain gauges on both sides and the wireless strain collector form the half-bridge measuring circuit, thus eliminating tensile strain. Only the bending strain is measured and the curvature of a curved surface is derived from the bending strain. Therefore, a technical problem in the field is solved.

Description

technical field [0001] The invention relates to a measuring instrument, especially suitable for measuring the radius of curvature of large curved surface structures in building structures and industrial products. Background technique [0002] With the continuous innovation of art forms in the construction industry and the application of 3D printing technology in this field, the software design and numerical control processing technology of large-scale industrial products are more advanced and free, and people are looking forward to and loving complex, abstract and artistic products and buildings. Therefore, there will be more and more large-scale structures with free-form surfaces in the future. In the process of product reference design, copy construction, inspection and monitoring, and aesthetic perception, it is necessary to conveniently measure and record the curvature radius of its curved surface. [0003] In engineering, there are two commonly used tools for measuring ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/293
CPCG01B7/293
Inventor 邢明录赵同彬邢明才王昌
Owner SHANDONG UNIV OF SCI & TECH
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