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Temperature and deformation synchronous measurement method and device

A technology of synchronous measurement and temperature field, which is applied in the field of optical measurement, can solve problems such as no longer applicable and limited development, and achieve the effects of improving measurement accuracy and efficiency, synchronous measurement, and promoting application development

Active Publication Date: 2020-12-11
TSINGHUA UNIV
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Problems solved by technology

However, since the ultraviolet camera is a typical monochrome camera, the current colorimetric temperature measurement method commonly used in engineering will no longer be applicable, which greatly limits the development of this technology in the field of simultaneous measurement of temperature and deformation

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  • Temperature and deformation synchronous measurement method and device
  • Temperature and deformation synchronous measurement method and device
  • Temperature and deformation synchronous measurement method and device

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Embodiment Construction

[0049]Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0050] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0051] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, component...

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Abstract

The invention relates to a temperature and deformation synchronous measurement method and device. The method comprises the steps of obtaining an initial image of the surface of a measured object whenthe measured object is not heated, a reference image of the surface of the measured object in a heating process, and the reference point temperature of the surface of the measured object; obtaining atemperature field of the surface of the measured object according to the light intensity of the initial image, the reference point temperature and the light intensity of the reference image; obtaininga deformation field of the surface of the measured object according to the initial image and the reference image, wherein the reference image and the initial image are monochrome images shot by a monochrome camera, and the reference point temperature is the single-point temperature of the surface of the measured object when the reference image is shot. The full-field temperature can be measured only through the monochromatic camera, the defect that the full-field temperature cannot be measured through the monochromatic camera is overcome, synchronous measurement of the temperature and deformation in a high-temperature environment is realized, the measurement precision and efficiency are remarkably improved, and the application and development of the monochromatic camera in the field of synchronous measurement of the temperature and deformation are greatly promoted.

Description

technical field [0001] The present disclosure relates to the technical field of optical measurement, in particular to a method and device for synchronously measuring temperature and deformation in the field of high temperature testing. Background technique [0002] In the field of aerospace, the key structural components of aircraft need to face high temperature and complex environment when they are in service. Taking high-speed aircraft as an example, with the further improvement of cruising speed and defense penetration capability, the extreme environment of key structural components such as engine turbine blades, nose cone and leading edge will be accompanied by thermal and chemical combustion during high-speed cruising and reentry. erosion, aerothermal effect, boundary layer transition and aerodynamic shape evolution and many other physical and chemical processes. In order to ensure the integrity of key structural components and the stability of their functions, it is o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/60G01B11/16
CPCG01B11/16G01J5/605
Inventor 冯雪张金松唐云龙岳孟坤王锦阳
Owner TSINGHUA UNIV
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