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A weight loading device for Young's modulus measurement

A loading device, Young's modulus technology, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve the problems affecting the accuracy of experimental results, interference errors, etc., to achieve convenient operation, reduce interference errors, The effect of improving test efficiency

Active Publication Date: 2020-12-08
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the process of measuring the Young's modulus of the test piece by the static method, it is necessary to load and unload the weight to apply a certain pressure on the test piece. At present, the loading and unloading of the weight is usually carried out manually. Load fluctuations will cause interference errors to the measured value of Young's modulus on the surface of the specimen, affecting the accuracy of the experimental results

Method used

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  • A weight loading device for Young's modulus measurement
  • A weight loading device for Young's modulus measurement
  • A weight loading device for Young's modulus measurement

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Embodiment Construction

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

[0014] The present application discloses a weight loading device for measuring Young's modulus, which is installed on the external foundation of the surface of the material to be tested, and is used to carry out weight loading during the measurement of Young's modulus of the material to be tested. For loading and unloading, please refer to Figure 1-3 , the weight loading device includes a base 1, a lifting structure, a steering structure and a grasping structure. Two parallel linear guide rails 2 are vertically installed on the left and right sides of the base 1 along the vertical direction, and two guide rail sliders are respectively arranged on each parallel linear guide rail, and the guide rail sliders are not shown in the figure.

[0015] The lifting structure includes a lifting motor 3, a ball screw 4 and a lifting frame. The lifting ...

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Abstract

The invention relates to the field of Young's modulus measurement and discloses a weight loading device for Young's modulus measurement. The device is mounted on a surface external base of a tested material, a lifting motor is controlled through encoder feedback, and accurate positioning in vertical displacement of weight loading is realized; a rotating motor is controlled through encoder feedback, and accurate positioning of a horizontal rotating angle in weight loading is realized; a miniature electric cylinder is controlled through encoder feedback, and accurate positioning of openness of two clamping blocks is realized. Automation and stability in weight loading and unloading are realized, interference errors of material surface Young's modulus measurement values due to load fluctuation in a loading process are reduced, and testing precision and testing efficiency are greatly improved.

Description

technical field [0001] The invention relates to the field of Young's modulus measurement, in particular to a weight loading device for Young's modulus measurement. Background technique [0002] Young's modulus is a physical quantity that describes the ability of solid materials to resist deformation. The measurement methods of Young's modulus are generally divided into static method and dynamic method. The static method refers to applying a constant pressure on the specimen, with the help of LVDT displacement sensor LinearVariable Differential Transformer, linear variable differential transformer) to measure its elastic deformation, so as to obtain the stress and strain relationship of the specimen. In the process of measuring the Young's modulus of the test piece by the static method, it is necessary to load and unload the weight to apply a certain pressure on the test piece. At present, the loading and unloading of the weight is usually carried out manually. Load fluctuat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
CPCG01L5/0028
Inventor 李明政田于逵刚旭皓季少鹏陈支银
Owner CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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