Method and device for measuring bubble shape in single-bubble sonoluminescence
A sonoluminescence and bubble shape technology, applied in the optical field, can solve the problems of high measurement cost, sensitive light source, troublesome, etc., and achieve the effect of convenient use and adjustment, simple processing process and accurate measurement results.
Active Publication Date: 2022-04-08
CHONGQING MEDICAL UNIVERSITY
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[0003] However, this method has the following defects at present: (1) firstly, due to the high price of high-speed camera and long focal length microscope, the measurement cost is very high; (2) due to the measurement equipment photomultiplier tube (Photo Multiplier Tube, PMT) It is sensitive to the light source itself, and single-bubble sonoluminescence will affect the measurement of scattered light intensity; (3) Since high-speed cameras and long-focus microscopes are required to shoot bubbles, another light source is required to pass through the bubbles, resulting in the shooting of bubbles and Mie scattering The measurement cannot be carried out at the same time; (4) The current measurement method is too complicated to operate, and subsequent processing is required after shooting the bubbles, which is very troublesome
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[0081] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0082] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in ...
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The invention provides a method and device for measuring the bubble shape in single-bubble sonoluminescence, and the method comprises the steps: firstly injecting bubbles into a target container which is filled with a solution medium and has a standing wave field, and then irradiating the bubbles by using a laser light source; at least two photomultipliers are used for detecting the scattering light intensity of the laser light source after penetrating through the to-be-detected bubble; when the at least two photomultipliers detect the intensity of scattered light, different angles exist between the corresponding detection positions and the emergent light direction of the laser light source; and finally, determining the shape of the bubble in the target container according to the scattered light intensity detected by each photomultiplier. According to the invention, not only can the shape of the bubble in the target container be detected, but also the measurement cost for detecting the shape of the bubble can be reduced, and the measurement equipment is simple to operate and convenient for a user to use and adjust. In the measurement process, a bubble radius change curve can be measured in real time, so that the measurement result is more accurate.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to a method and device for measuring the shape of bubbles in single-bubble sonoluminescence. Background technique [0002] Single-bubble sonoluminescence is a light-emitting phenomenon in which bubbles expand and collapse steadily and periodically with the sound cycle under the action of ultrasound. The external driving energy required for single-bubble sonoluminescence is very low, and generally a few tenths of a watt can make micron-sized bubbles emit light visible to the naked eye. At present, the method of measuring the shape of bubbles in single-bubble sonoluminescence is to use a high-speed camera combined with a long-focus microscope to directly shoot the size of the bubbles, and then combine with a two-way Mie scattering device to realize the measurement of the shape of the bubbles. [0003] However, the current method has the following defects: (1) firstly, due to the hig...
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Login to View More IPC IPC(8): G01B11/24G01B11/08
Inventor于扬新丁轩苏仁杰赖奇
OwnerCHONGQING MEDICAL UNIVERSITY