Experimental device and method based on relative flow analog image thermal disturbance during liquid mutual dissolution
A technology of simulating images and relative flow, applied in measurement devices, instruments, investigation stages/state changes, etc., can solve problems such as the inability to ensure the stability of the surrounding environment temperature, the high energy consumption and noise of heating devices, and the difficulty of quantitative experiments. Control variables, high controllability, high repeatability effects
Active Publication Date: 2019-04-05
NANJING UNIV OF SCI & TECH
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Problems solved by technology
However, this type of method requires a large space for experiments, and cannot simulate thermal disturbances in long-distance images in equal proportions within a short distance or within a few meters.
And this kind of method can not guarantee the stability of surrounding environment temperature, has caused difficulty in given quantitative experiment.
In addition, the energy consumption and noise of the heating device are relatively large, which is not convenient for experiments in a closed space.
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[0049] Such as figure 1 with figure 2 As shown, an experimental device based on the thermal disturbance of the relative flow simulation image when the liquids dissolve each other, the device includes the following equipment:
[0050] A roofless water tank 1 with internal dimensions 1.5 m long, 0.8 m wide, and 0.6 m high, containing at least three observation windows 3, a guide rail 6 with a scale, at least one lamp 17 for underwater lighting, two industrial Camera 13, at least two sets of high-resolution lenses 12, two tripods 14, computer 15, a flow meter 9, several pipe fittings 7, at least two sliders 5, a small water pump 10, at least one for holding pumps Container 11 for liquid, at least one water valve 8 , at least one set of lasers 2 , at least one thermometer included in the temperature controller, at least two temperature controllers 4 , stirrer 16 . The resolution of the high-resolution lens is more than 5 million.
[0051] The guide rail with a scale can be ins...
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The invention discloses an experimental device and method based on relative flow analog image thermal disturbance during liquid mutual dissolution. The principle of the method is as follows: heat convection of air is replaced with relative flow when mutually soluble liquid with different refractive indexes is dissolved so as to achieve the problem of thermal disturbance of the analog image. The experimental method comprises the following steps: a speckle is prepared in a to-be-measured region; assembling of the device and selection of parameters are conducted; liquid 1 is injected and a double-camera system is debugged to perform three-dimensional coordinate measurement on the to-be-measured region; liquid 2 is injected and the to-be-measured region is measured; and the experimental conditions are changed according to needs so as to carry out measurement under different conditions. According to the device and the method in the invention, long-distance thermal interference can be simulated in a short distance, and the advantages that the experimental device is high in controllability and good in experiment repeatability, and continuous experiments can be conducted indoors are achieved.
Description
technical field [0001] The invention relates to the field of optical measurement experiment solid mechanics, in particular to an experimental device and method based on thermal disturbance of a relative flow simulation image when liquids are mutually soluble. Background technique [0002] In the field of photomechanics, image measurement technology has not had a good solution to image thermal disturbance (image disturbance caused by air heat convection caused by temperature unevenness), especially long-distance (200 to 1500 meters) image thermal disturbance. . Simulation experiments are usually required to find and optimize relevant algorithms. [0003] Simulation experiments often use hot air blowers and ovens as hot air sources. However, this type of method requires a large space for experiments, and cannot simulate long-distance image thermal disturbances in equal proportions within a short distance or within a few meters. And this type of method cannot guarantee the s...
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Login to View More IPC IPC(8): G01N25/02G01N21/84
CPCG01N21/84G01N25/02G01N2021/8411
Inventor 梅林刘聪
Owner NANJING UNIV OF SCI & TECH