Method and apparatus for measuring sound field distribution image using sonic chemiluminescence imaging
A technology of sonochemiluminescence and measurement method, which is applied in measurement devices, chemiluminescence/bioluminescence, analysis by chemical reaction of materials, etc., can solve the problems of measurement result error, easy damage, measurement, etc., and achieves easy production and assembly. , The effect of simple operation process and simple device structure
Inactive Publication Date: 2004-12-22
SOUTH CHINA NORMAL UNIVERSITY
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Problems solved by technology
However, there are many problems in the measurement process of this instrument, mainly in the following aspects: (1) During the measurement process, the instrument can only measure the change of the sound at a certain point each time, but cannot measure the sound of the entire ultrasonic field at the same time. Distribution
(2) When measuring the sound distribution at different positions, it is necessary to move the position of the hydrophone, so different points cannot be measured under the same stable condition, which will bring errors to the measurement results
(3) The hydrophone is seriously disturbed by the outside world, and the high-frequency electromagnetic signal interference signal will seriously affect the output waveform of the hydrophone, so the output signal cannot truly reflect the sound distribution of the measurement point
(4) Since the hydrophone has relatively high requirements for various measurement conditions, there are certain limitations in the actual measurement
(5) The instrument is expensive and easy to damage, so it is very inconvenient to use
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[0022] The present invention will be further specifically described below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0023] figure 1 A specific structural schematic diagram of a measurement device for an acoustic field distribution image using sonochemiluminescence imaging of the present invention is given.
[0024] Depend on figure 1 It can be seen that the device includes a CCD or ICCD imaging system 1 , an analog-to-digital converter 2 , a computer 3 , and a printer 4 . The CCD or ICCD imaging system is composed of a light-collecting camera lens 1-1 connected to a detector 1-2; the CCD or ICCD imaging system 1, the analog-to-digital converter 2 are electrically connected to the computer 3 in turn; the computer 3 is connected to the printer 4; 5 is a three-dimensional adjustable sample holder, on which the ultrasound to be tested is placed, and 6 is a dark room. Select various components to connec...
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Abstract
A method for measuring the sound field distribution image by acousto-chemical luminescent imaging includes adding chemical luminescent reagent to water, generating cavitation in the water by the ultrasonic field to be tested, reaction of free group with said reagent to generate acousto-chemical light, converting the light signals to electric signals and then to digital signals, processing them to obtain acousto-chemical luminescent image, and directly observing the sound field distribution. Its apparatus is composed of light receiver, A / D converter, computer and software.
Description
technical field [0001] The invention relates to a sound field distribution measurement technology, in particular to a method and a device for measuring sound field distribution by using sonochemiluminescence imaging. Background technique [0002] At present, in the measurement of the sound field distribution, the commonly used instrument is the piezoelectric hydrophone. The principle is that the sound pressure acts on the piezoelectric transducer to generate an electrical signal, so the distribution of the sound at the measurement point can be judged according to the change of the electrical signal. However, there are many problems in the measurement process of this instrument, mainly in the following aspects: (1) During the measurement process, the instrument can only measure the change of the sound at a certain point each time, but cannot measure the sound of the entire ultrasonic field at the same time. Distribution. (2) When measuring the soun...
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IPC IPC(8): G01H9/00G01N21/76
Inventor 邢达丁春峰何永红
Owner SOUTH CHINA NORMAL UNIVERSITY