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Strain sensor for measuring structural deflection

A technology of strain sensor and testing structure, which is applied in the field of sensing system, and can solve the problems of inability to detect and measure the driving girder, etc.

Inactive Publication Date: 2012-01-18
重庆大唐科技股份有限公司
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Problems solved by technology

[0002] At present, the measurement of the deflection of the structural beam basically adopts the method of measuring the displacement from the outside, and the displacement sensor is installed under the measured point of the measured beam. This test method can only be installed when the beam is stationary and in the space under the beam. Position sensor, this method cannot detect the beam in real time, it is difficult to measure the deflection of the driving girder in this way

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  • Strain sensor for measuring structural deflection
  • Strain sensor for measuring structural deflection
  • Strain sensor for measuring structural deflection

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Embodiment Construction

[0027] Such as Figure 1 to Figure 6 As shown, the strain gauge sensor 2 for measuring structural deflection of the present invention is fixed on the surface wall of the structure under test 1, wherein the structure under test 1 is a beam body, and when the deflection deformation occurs in the structure under test 1, the strain gauge sensor 2 is also A corresponding deflection deformation will occur.

[0028] The sensor 2 includes an elastic body 9 and a strain gauge disposed in the elastic body 9, a measurement circuit and corresponding wires (the elastic body 9 is provided with a special strain gauge installation area 15 and a measurement circuit installation area 16), the elastic body 9 is provided with mounting holes 11 distributed on both sides of the strain gauge; it also includes a mounting bracket 3, one end of which is welded together with the tested structure 1, and the other end passes through the mounting holes 11 and is fixed on the mounting bracket by a self-lock...

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Abstract

The invention discloses a strain sensor for measuring structural deflection. The strain sensor is fixed on the surface wall of a tested structure and comprises an elastic body, a strain gauge and installation brackets, wherein the strain gauge is arranged in the elastic body; the elastic body is provided with installation holes distributed on both sides of the strain gauge; one end of each installation bracket is welded together with the tested structure, and the other end of each installation bracket passes through each installation hole and is fixed in each installation hole through a self-locking nut; the installation brackets and the installation holes correspond to each other one by one; and the elastic body is fixed on the neutral surface of the tested structure through the installation brackets. By adopting the strain sensor for measuring the structural deflection, the technical defect that a sensor in the prior art cannot be used for detecting a beam in real time is overcome, the measuring accuracy of the sensor can be increased simultaneously, and the service life of the sensor is prolonged.

Description

technical field [0001] The invention belongs to the field of strain sensing, and in particular relates to a sensing system for detecting the deflection of a structural beam or detecting other physical quantities by detecting the deflection. Background technique [0002] At present, the measurement of the deflection of the structural beam basically adopts the method of measuring the displacement from the outside, and the displacement sensor is installed under the measured point of the measured beam. This test method can only be installed when the beam is stationary and in the space under the beam. Position sensor, this method cannot detect the beam in real time, it is difficult to use this method to measure the deflection of the driving beam. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sensor installed on the measured beam to measure the deflection of the beam in real time. [0004] In order to solve the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00
Inventor 唐廷烨
Owner 重庆大唐科技股份有限公司
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