A calibration device for high temperature strain calibration from room temperature to 1800°C

Abstract

The invention provides a high temperature (room temperature to 1800 DEG C) strain adjustment and calibration device, and belongs to the technical field of high temperature strain tests. The device comprises a high temperature strain experiment furnace, a temperature control system, and a high temperature strain testing system. The high temperature strain experiment furnace is prepared by encapsulating a heating and temperature control system, a support system, a loading system, and a measuring system. The temperature control system is individually arranged. The high temperature strain testing system is composed of a contact type measuring system and a non-contact type measuring system. The device can measure the changing characteristics of performance parameters of a strain gauge along with the temperature under a high temperature condition, measures the elasticity modulus curve of a calibration beam material at different temperatures, and generates standard strain to correct the precision of the contact type and non-contact type high temperature strain testing systems. The device is convenient, the allowable loading force of the testing device is large, the loaded strain force can be constant or variable, the test precision is high, the repeatability is high, the application temperature range is wide, and the experiment results are reliable.

Description

technical field [0001] The invention relates to the technical field of high-temperature strain testing, in particular to a high-temperature strain calibration calibration device for room temperature to 1800°C. Background technique [0002] Strain measurement of industrial equipment under high temperature conditions is an important part of the test system. Contact high-temperature strain measurement is limited by the characteristics of strain gauge materials and adhesive materials. The working temperature is generally below 1100°C, and there is nothing we can do to explore higher temperatures. With the development of non-electrical measurement technologies such as digital image correlation technology and electronic speckle interference, more and more non-contact optical strain measurement technologies are applied to high-temperature strain tests, and their working temperatures can reach 1800°C or even higher. . At present, there are few high-temperature strain calibration d...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing strain gauge calibration device has a low operating temperature, a small number of high temperature strain calibration devices have a specific use temperature range that is not clear, and most calibration devices can only realize one of the two modes of force loading and displacement loading. To solve this problem, provide a calibration device for high temperature strain calibration from room temperature to 1800 °C

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