An ultrasonic measurement method for the internal temperature field of a uniform material component

Abstract

An ultrasonic measurement method for the internal temperature field of a homogeneous material component comprises the following steps: (1) selecting a material the same with the material of a to-be-measured homogeneous material component to make a calibration sample, and determining the relationship between ultrasonic propagation velocity and temperature in the homogeneous material based on the calibration sample; (2) determining the thickness of the to-be-measured homogeneous material component and the temperature of the cold end thereof; (3) determining the ultrasonic transit time in the to-be-measured homogeneous material component based on a pulse echo method; and (4) using an ultrasonic temperature field reconstruction mechanism to get the internal temperature field distribution of the to-be-measured homogeneous material component. The internal temperature field distribution of the homogeneous material component is reconstructed without destroying the structure. The method has the advantages of simple operation and fast reconstruction, and can be effectively applied to actual industrial production to provide temperature data for safe operation of industrial equipment.

Description

technical field [0001] The invention relates to the field of measuring the internal temperature field of structural parts, in particular to an ultrasonic measuring method for the internal temperature field of uniform material components. Background technique [0002] Temperature detection and control has always been an important part of the safe operation and health monitoring of structures. The measurement of the internal temperature field of structural parts has an important application background and need. Usually, the environment in which engineering structural parts are located is very harsh, and the internal temperature of the structural parts is relatively high during operation. If the abnormal temperature area is not monitored in time, it will cause accidents such as structural failure and collapse, which will affect personal and property safety. Effective detection and evaluation is very important. [0003] The existing internal temperature measurement method of s...

AI Technical Summary

Problems solved by technology

Usually, the environment in which engineering structural parts are located is very harsh, and the internal temperature of the structural parts is relatively high during operation. If the abnormal temperature area is not monitored in time, it will cause accidents such as structural failure and collapse, which will affect personal and property safety. It is important to effectively detect and evaluate

[0003] The existing internal temperature measurement method of structural parts is mainly the contact method, which requires the sensor to be installed inside the component to be tested, which increases the difficulty of structural part design and directly affects the safety and stability of the overall structure

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