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Method and device for dynamic analysis of loading rate of material testing machine

A material testing machine and analysis device technology, which is applied in the direction of measuring device, analyzing material, and testing material strength by applying stable tension/pressure. It can solve the problem of low sampling conversion rate, data response rate attenuation, and conversion rate not reaching Dynamic measurement requirements and other issues, to achieve the effect of dynamic analysis and loading rate

Pending Publication Date: 2018-08-31
CHINA TEST & CERTIFICATION INT GRP CO LTD +1
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Problems solved by technology

However, the sampling conversion rate of general-purpose force measuring instruments is not high, most of them are below 50 times per second, and in order to ensure the stability of instrument display, software and hardware filtering are used, and the data response rate is greatly attenuated. The conversion rate will be lower than 20 times / second
Such a conversion rate is far from meeting the requirements of dynamic measurement

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  • Method and device for dynamic analysis of loading rate of material testing machine

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Embodiment Construction

[0027] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0028] On the one hand, the present invention provides a method for dynamic analysis of the loading rate of a material testing machine, comprising a material testing machine, a dynamic force sensor 1, a data acquisition adapter 2 and a dynamic force value analysis device 4 connected in sequence, such as figure 1 shown. Taking the cement mortar strength pressure testing machine as an example, the method includes:

[0029] Put the sample into the fixture, set the loading rate of the pressure testing machine, and start the material testing machine to carry out the loading test until the sample is destroyed.

[0030] Put a 28-day mortar sample into the compression fixture, set the loading rate of the pressure testing machine to 2.4kN / s according to the requ...

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Abstract

The invention discloses a method and a device for dynamic analysis of loading rate of a material testing machine, and belongs to the field of material testing machines. The method comprises the following steps of: placing a sample into a fixture, setting the loading rate of a pressure testing machine, starting the material testing machine to perform a loading test until the sample is destroyed; adynamic force sensor and a data acquisition adapter collect the original force data in the loading test, wherein the original force data comprises various acquisition points and the corresponding force values; a dynamic force value analysis device calculates the loading rate value of each acquisition point according to the original force data; the dynamic force value analysis device calculates theaverage loading rate, the qualified rate of loading rate and the qualified points according to the loading rate value of each acquisition point, which reflects the quality of the testing machine; thedata acquisition adapter comprises an anti-interference module and a high-speed data buffer processing module, and the maximum value of the sampling conversion rate of the data acquisition adapter is3000 times / second. The dynamic analysis of the loading rate of the testing machine is achieved.

Description

technical field [0001] The invention relates to the field of material testing machines, in particular to a method and device for dynamically analyzing the loading rate of a material testing machine. Background technique [0002] Material testing machine is a precision testing instrument for measuring the mechanical properties, process properties, internal defects and checking the dynamic unbalance of rotating parts under various conditions and environments. As the most commonly used test equipment in the building materials industry, the material testing machine's quality directly affects the accuracy and authority of the building material test data. The loading rate of the material testing machine has a particularly prominent impact on the test data of cement samples and other building material samples, which is a common understanding of the industry. [0003] Since the measurement of the loading rate belongs to the category of dynamic force measurement, the technical requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/02
CPCG01N3/02G01N3/08Y02P90/02
Inventor 王长安周逊王旭方王瑞海张庆华颜小波郭旭
Owner CHINA TEST & CERTIFICATION INT GRP CO LTD
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