Test piece deformation measurement device in high-pressure water environment

A measuring device, high-pressure water technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., to achieve the effect of overcoming the influence

Inactive Publication Date: 2013-09-04
CHINA THREE GORGES UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the influence of water conductivity on deformation measuring instruments and to elimi

Method used

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  • Test piece deformation measurement device in high-pressure water environment
  • Test piece deformation measurement device in high-pressure water environment

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Embodiment 1

[0017] Such as figure 1 As shown, a test piece deformation measurement device in a high-pressure water environment includes a metal sealing body 1, a top plug 5 is provided at the upper end of the metal sealing body, an end plug 4 is provided at the lower end, and a displacement sensor 2 is arranged inside the metal sealing body. The top of the displacement sensor is a sensor measuring rod 12, the top of the sensor measuring rod is provided with a transfer rod 7, the transfer rod passes through the top plug, a linear bearing 6 is provided between the top plug and the transfer rod, and a wire hole 9 is provided in the end plug.

[0018] A straight-through connector 10 is provided at the end of the wire hole, and the straight-through connector is connected to a protective pipeline 11 . The upper part of the top plug is provided with a protective sleeve 14 outside the transmission rod. The mating surface of the end plug and the metal sealing body is provided with a groove, and a...

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Abstract

The invention provides a test piece deformation measurement device in a high-pressure water environment. The device comprises a metal sealing body, wherein a top plug is arranged at the upper end of the metal sealing body, an end plug is arranged at the lower end of the metal sealing body; a displacement sensor is arranged inside the metal sealing body; the upper part of the displacement sensor is provided with a sensor measurement rod; a transfer rod is arranged at the top end of the sensor measurement rod, and penetrates through the top plug; a linear bearing is arranged between the top plug and the transfer rod; and a lead wire hole is formed inside the end plug. The test piece deformation measurement device in the high-pressure water environment can be realized by adopting the metal sealing body which can endure the pressure action of water and be used for protecting the displacement sensor and by utilizing a mode of upper/lower spacing nut combination of an upper support and the transfer rod, so that the influence on the deformation measurement caused by water conductivity and high-pressure action can be overcome.

Description

technical field [0001] The invention relates to a test device, in particular to a device capable of measuring the deformation of a test piece in a high-pressure water environment. Background technique [0002] In civil engineering, triaxial mechanical loading tests on concrete, rock and other construction materials have been comprehensively progressed and developed. Among the instruments and equipment used in these tests, the media that provide confining pressure to the specimens are all lubricating oils. Conductive fluids, the strain measurement devices used in such high pressure environments are the same as those used in atmospheric environments. Since the bedrock and concrete structures of hydraulic and hydropower projects serve under high-pressure water environment, it is an inevitable trend to study the mechanical properties of materials under the coupling action of high-pressure water and mechanical force. The deformation measurement device has become a key technical ...

Claims

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Application Information

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IPC IPC(8): G01N3/12
Inventor 王乾峰雷进生彭刚
Owner CHINA THREE GORGES UNIV
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