System for measuring sample quality and dimensions in freeze-thaw cycle process

Abstract

The invention belongs to the geotechnical test field and particularly relates to a system for measuring sample quality and dimensions in the freeze-thaw cycle process. The system comprises a tester, a dynamic data acquisition instrument and a computer processing system, wherein the tester mainly comprises an outer case, an inner case, a temperature control system, column-shaped laser distance measurement instruments, a weighing testing stand and a case cover, the column-shaped laser distance measurement instrument in the vertical direction is used for monitoring height change of a sample in real time, the column-shaped laser distance measurement instrument in the horizontal direction is used for monitoring diameter change of the sample in real time, and the weighing testing stand is not only used for disposing the sample, but also used for weighing the sample. The system is advantaged in that a problem of relatively large error caused by traditional artificial sample quality and dimension measurement in the prior art is effectively solved, and high automation degree, accurate data and convenient operation are realized.

Description

technical field [0001] The patent of the present invention relates to a test system for measuring the quality and size of samples during freeze-thaw cycles, which belongs to the field of geotechnical tests. Background technique [0002] During the freeze-thaw cycle test, the mass and dimensional changes of the sample are important parameters that reflect the development process of the sample from an unstable state to a dynamic stable state. Usually, the method for obtaining the mass and size changes of the sample in the laboratory is to measure the mass and size of the sample with an electronic scale and a vernier caliper after each freeze-thaw cycle. On the one hand, human error is inevitable in the process of taking and placing the sample back and forth in the freeze-thaw test chamber; When measuring the size of the sample, there is no guarantee that it will be at the same position every time, which will also cause a large error; moreover, the method of manual measurement...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of traditional manual methods in measuring sample quality and size changes in freeze-thaw cycle tests, the present invention provides a test system for measuring sample quality and size during freeze-thaw cycle tests

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