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Measuring apparatus and test method for volume elastic modulus of solid buoyancy material

A bulk elastic modulus, measuring device technology, applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problems of inability to measure bulk elastic modulus, low detection efficiency of solid buoyant materials, etc., and achieve the effect of convenient operation

Active Publication Date: 2009-04-08
MARINE CHEM RES INST
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Problems solved by technology

[0005] The present invention provides a solid buoyant material volume elastic modulus measurement device and testing method, which can solve the problems in the prior art that the detection efficiency of solid buoyant material is not high and its bulk elastic modulus cannot be measured

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  • Measuring apparatus and test method for volume elastic modulus of solid buoyancy material
  • Measuring apparatus and test method for volume elastic modulus of solid buoyancy material
  • Measuring apparatus and test method for volume elastic modulus of solid buoyancy material

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Embodiment Construction

[0057] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] Such as figure 1 As shown, the solid buoyant material bulk modulus testing device of the present invention is mainly composed of three parts: a carrying device 10, a pressure regulating device 20 and a measurement control device 30,

[0059] The carrying device 10 includes a hydraulic cylinder 11 and its hydraulic cylinder cover 12, a pressure gauge 13 is arranged on the upper part of the hydraulic cylinder cover 12, and a pressurizing valve 14 and a pressure relief valve 15 are respectively arranged on the left and right sides of the pressure gauge 13; A calibration steel block 17 is preset, and the volume of the calibration steel block 17 is equal to the volume of the solid buoyancy material to be tested.

[0060] The pressure regulating device 20 includes a hydraulic pump 21 and its plunger 22, the lower end of the hydraul...

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Abstract

The invention provides a measuring device used for measuring the volume elastic modulus of a solid buoyant material. The measuring device comprises a bearing device, a pressure-regulating deice and a measurement control device. The bearing device comprises a hydraulic cylinder and a hydraulic cylinder cover; a pressure meter and a pressure-regulating valve are arranged on the upper part of the hydraulic cylinder cover; the pressure-regulating device comprises a hydraulic pump and a corresponding plunger; the lower end of the hydraulic pump is communicated with a water supply; the upper end of the plunger is connected with a motor; the measurement control device comprises a programmable controller, a pressure sensor and a linear scale; the pressure sensor and the pressure meter are arranged on a pipeline communicating the hydraulic cylinder and the hydraulic pump; the finger of the linear scale and the plunger moves synchronously; and the pressure sensor, linear scale and motor all can be controlled by the programmable controller. The invention also discloses a test method used for solving the problem in the prior art that the volume elastic modulus cannot be measured. The invention is provided with the guidance for the study of solid buoyant material.

Description

technical field [0001] The invention relates to a hydrostatic pressure simulation device for detecting the bulk elastic modulus of solid buoyant materials, in particular to a measuring device and a testing method for measuring the bulk elastic modulus of solid buoyant materials for deep sea operations. Background technique [0002] Solid buoyancy material is an important part of the development of modern deep diving technology. The material can withstand huge hydrostatic pressure thousands of meters underwater, and its own density is only about half that of water. It can provide buoyancy to support the weight of the robot and the material itself. When the mechanical power stops or an accident occurs such as the umbilical cable breaks, it can ensure that the submersible will automatically float up, so that the submersible will not be lost, so as to ensure the safety of life and property. Solid buoyancy materials can solve the pressure resistance and structural stability of m...

Claims

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Application Information

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IPC IPC(8): G01N3/12
Inventor 陈先吴则华周媛梁忠旭
Owner MARINE CHEM RES INST
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