High-temperature aerobic loading optical measurement system
A technology of optical measurement system and loading system, which is applied in the field of high-temperature aerobic loading optical measurement system, which can solve problems such as drift and inability to measure the displacement and deformation field of the whole field, and achieve the effect of simple operation
Inactive Publication Date: 2013-11-20
TSINGHUA UNIV
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Problems solved by technology
At present, there are many high-temperature test methods. Traditional electrical measurement methods and high-temperature extensometer measurement methods cannot measure the full-field displacement and deformation field, and there are serious drift problems caused by excessive temperature.
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[0014] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.
[0015] figure 1 , 2 It is a schematic diagram of the structural principle of the present invention. The high-temperature aerobic loading optical measurement system of the present invention includes a loading system 1, a high-temperature furnace 2, a data acquisition and processing system 3, an air pump 4, and a control and display system 5; Display system 5 includes temperature control and recorder 6, oxygen pressure controller 7, force display 8, stepper motor controller 9 and stepper motor driver 10; described loading system includes stepper motor 11, threaded connecting rod 12. Force sensor 15, bellows 17, moving specimen clamping rod 18, fixed specimen clamping rod 22 and loading frame 23; one end of the threaded connecting rod is connected with the output shaft of the stepper motor 11, and the connecting rod The other end is connected to the...
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The invention discloses a high-temperature aerobic loading optical measurement system, belonging to the technical fields of optical mechanics, engineering material, member deformation and displacement test. The measurement system is composed of a loading system, a high-temperature furnace, a data collection and processing system, a control and display system and the like. According to the high-temperature aerobic loading optical measurement system, actual work environment of components in aerospace vehicles can be simulated, the research on mechanical property, deformation state and failure mechanism of high-temperature material and components in high-temperature and aerobic environment can be implemented by combining with a digital image correlation and moire interference optical measurement method, and non-contact measurement and whole measurement of deformation fields of material and structure can be implemented by using a digital speckle correlation system or a moire interference test system. The system has the advantages of convenience for use, compact structure, high measurement accuracy and the like; according to the system, the research on deformation of the high-temperature material and structure in environments with different temperatures, oxygen pressures, loading and protection gases can be implemented.
Description
technical field [0001] The invention relates to a high-temperature aerobic loading optical measurement system, belonging to the technical fields of optical measurement mechanics, engineering materials, component deformation and displacement testing. Background technique [0002] With the needs of aviation, aerospace, power industry and other departments for the deformation measurement and research of in-service high-temperature components, the mechanical properties, deformation state and failure mechanism of materials and structures in high-temperature environments are increasingly valued by researchers. In many aerospace engineering fields, high-temperature materials and structures work in a high-temperature aerobic environment for a long time, so the mechanical performance test of high-temperature materials and structures in a simulated actual working environment plays a guiding role in the safety research of aviation and aerospace vehicles role. Therefore, the developmen...
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IPC IPC(8): G01B11/16G01N3/00
Inventor 谢惠民王怀喜
Owner TSINGHUA UNIV