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Apparatus suitable for measuring bending rigidity, elasticity modulus, shear modulus and bulk modulus

A technology of elastic modulus and shear modulus, applied in the field of elastic modulus, devices that can measure bending stiffness, shear modulus, and bulk modulus, to achieve the effect of simple structure

Inactive Publication Date: 2017-04-26
XIAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a device that can measure bending stiffness, elastic modulus, shear modulus, and bulk modulus, which solves the problem that each different characteristic quantity needs to be measured by a special measuring instrument

Method used

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  • Apparatus suitable for measuring bending rigidity, elasticity modulus, shear modulus and bulk modulus
  • Apparatus suitable for measuring bending rigidity, elasticity modulus, shear modulus and bulk modulus
  • Apparatus suitable for measuring bending rigidity, elasticity modulus, shear modulus and bulk modulus

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] The present invention can measure the device of bending stiffness, elastic modulus, shear modulus and bulk modulus, the structure is as figure 1 As shown, including the base 6, the stress sensor 7 is placed in the groove of the base 6, the probe of the stress sensor 7 is higher than the upper surface of the groove of the base 6, a plano-convex lens 11 is placed on the probe of the stress sensor 7, and a plano-convex lens 11 is placed on the probe of the stress sensor 7. An optical flat glass 10 is placed, and the convex surface of the plano-convex lens 11 is in contact with the optical flat glass 10. On the edge of the upper surface of the optical flat glass 10, a loam cake 5 is placed, and the loam cake 5 is connected with the base 6 by a set screw 4. The loam cake 5 is connected with the base 6. There is a gap between the bases 6 ; t...

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Abstract

The invention discloses an apparatus suitable for measuring bending rigidity, elasticity modulus, shear modulus and bulk modulus; the apparatus comprises a base, a stress sensor is arranged in a cavity of the base, a probe of the stress sensor is higher than the upper surface of the cavity of the base, a plano-convex lens is arranged on the probe of the stress sensor, optical plate glass is arranged on the plano-convex lens, a convex surface of the plano-convex lens is in contact with the optical plate glass, an upper cover is arranged at the edge of the upper surface of the optical plate glass, the upper cover is connected to the base through fixing screws, and a gap is provided between the upper cover and the base. A signal wire of the stress sensor runs through a through hole of the base and connects with a measuring instrument, and the measuring instrument is used for displaying stress acquired by the stress sensor. The apparatus is simple in structure, and the problem that each existing characteristic quantity needs to be measured with a special measuring instrument is solved.

Description

technical field [0001] The invention belongs to the technical field of applied optical equipment, and in particular relates to a device capable of measuring bending stiffness, elastic modulus, shear modulus and bulk modulus. Background technique [0002] The traditional measurement method of bending stiffness, elastic modulus, bulk modulus and shear modulus of small sample optical flat glass is cumbersome, with large errors and long measurement period. In addition, each different characteristic quantity needs to be The measurement of special measuring instruments has caused a lot of waste of resources. The device of the present invention can measure different mechanical quantities at the same time, and the device is simple, cheap, easy to operate, and has small measurement errors. It is suitable for the measurement of small sample optical flat glass. The measurement repeatability is good. [0003] This device adopts the principle of Newton ring interferometer, transforms th...

Claims

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Application Information

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IPC IPC(8): G01N3/06G01N3/00G01M11/08
CPCG01M11/08G01N3/00G01N3/068G01N2203/0037G01N2203/0075G01N2203/0003
Inventor 郭长立冯小强
Owner XIAN UNIV OF SCI & TECH
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