Strain calibration device applied to high-temperature and high-pressure underwater

Abstract

The invention discloses a strain calibration device applied to high-temperature and high-pressure underwater. The strain calibration device comprises a high-pressure kettle, a calibration beam, a pressure system, a displacement system and a temperature system, wherein the calibration beam is used for installing a tested strain sensor, and the calibration beam is fixedly installed in the high-pressure kettle. The pressure system provides a high-pressure environment for the interior of the high-pressure kettle, the temperature system provides a high-temperature environment for the interior of the high-pressure kettle, and the displacement system adopts an automatic displacement loading unit to carry out displacement loading on the calibration beam under high-temperature and high-pressure working conditions. The problem that an existing calibration device only provides strain calibration in a high-temperature environment and cannot achieve strain calibration in a high-pressure environment is solved, and the load loading precision can be improved.

Description

technical field [0001] The invention belongs to the technical field of strain calibration, and in particular relates to a strain calibration device applied in high temperature and high pressure underwater. Background technique [0002] In recent years, with the rapid development of science and technology and the unprecedented increase in productivity, higher requirements have been placed on measurement accuracy and data reliability. Strain refers to the local relative deformation of the structure under the action of external force or non-uniform temperature field and other factors, and strain gauges are usually used to test the structural strain. Strain gauges are widely used in the measurement of high-end equipment in the leading fields of aviation, aerospace, nuclear power, and military industry under high-temperature and high-pressure conditions. Under normal temperature and pressure, the sensitivity parameters provided by the manufacturer are used to set, and the measur...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a strain calibration device applied to high temperature and high pressure underwater, which solves the problem that the existing calibration device only provides strain calibration under high temperature environment and cannot realize strain calibration under high pressure environment. The strain calibration device of the present invention can improve load loading accuracy

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