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Resistance strain gauge for stress analysis

A resistance strain gage and stress analysis technology, applied in the field of strain gages, can solve the problems that the strain gage is difficult to meet the requirements, there is no good solution, and the size requirements of the strain gage are relatively strict. Unique, small size effect

Active Publication Date: 2015-07-22
JINAN JINZHONG ELECTRONICS SCALE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some test components with limited patch area, the size requirements of this type of strain gauge are relatively strict, and it is difficult for ordinary size strain gauges for stress analysis to meet the requirements.
[0004] Currently, there is no good solution

Method used

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  • Resistance strain gauge for stress analysis
  • Resistance strain gauge for stress analysis
  • Resistance strain gauge for stress analysis

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Embodiment Construction

[0017] Refer to the attached figure 1 to attach Figure 6 A resistance strain gauge for stress analysis of the present invention will be described in detail below.

[0018] A resistance strain gauge for stress analysis of the present invention, its structure includes a marking base 4 and a strain gauge body, the strain gauge body is arranged on the upper part of the marking base 4, and the strain gauge body includes a first layer of strain gauge sheets 1. The second layer of strain gauges 2 and the third layer of strain gauges 3, the first layer of strain gauges 1, the second layer of strain gauges 2 and the third layer of strain gauges 3 are arranged in sequence from bottom to top , the upper parts of the first layer of strain gauges 1, the second layer of strain gauges 2 and the third layer of strain gauges 3 are respectively provided with sensitive grids, and the upper part of the sensitive grids of the third layer of strain gauges is provided with a protective layer 5. T...

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PUM

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Abstract

The invention discloses a resistance strain gauge for stress analysis and belongs to strain gauges. The structure of the strain gauge comprises a marking base and a strain gauge body. The strain gauge body comprises a first layer of strain gauge sheet, a second layer of strain gauge sheet and a third layer of strain gauge sheet. A sensitive grid is arranged on the upper portions of the first layer of strain gauge sheet, the second layer of strain gauge sheet and the third layer of strain gauge sheet respectively. A protection layer is arranged on the upper portion of the sensitive grid of the third layer of strain gauge sheet. Wire grid axes of the sensitive grids on the upper portions of the first layer of strain gauge sheet, the second layer of strain gauge sheet and the third layer of strain gauge sheet are distributed at 45 degrees, 135 degrees and 90 degrees, welding discs of the sensitive grids are distributed at the same angle, leads are arranged on each of the welding discs, and the whole strain gauge outline dimension is smaller than 3mm*3mm. The strain gauge has the advantages of being novel and unique in appearance, small in size, high in yield and capable of reducing production costs and solving the problem of the limitation of patches.

Description

technical field [0001] The invention relates to a strain gauge, in particular to a resistance strain gauge for stress analysis. Background technique [0002] Strain gauges for stress analysis are mainly used for stress analysis and measurement. With the development of science and technology, strain gauges for stress analysis are widely used in various industries. The sensitive grid area of ​​the strain gauge used for general stress analysis is composed of three sensitive grids whose axes intersect to form a certain angle, which can measure the stress in three directions, and the area is generally large. At present, the commonly used strain gauges for stress analysis are triaxial laminated, the manufacturing process is complicated, and the qualified rate is low. [0003] The size of such strain gauges that are common at present is generally larger than 3mm×3mm. For some test components with limited patch area, the size requirements for this type of strain gauge are relative...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22
Inventor 胡玲玲
Owner JINAN JINZHONG ELECTRONICS SCALE