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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, and analysis by chemical reaction of materials, etc., can solve the problems of measurement result error, high cost, measurement, etc., and achieves convenient operation and use. , The effect of easy production and assembly and broad application prospects

Inactive Publication Date: 2003-03-12
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

Method used

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  • Method and apparatus for measuring sound field distribution image using sonic chemiluminescence imaging
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  • Method and apparatus for measuring sound field distribution image using sonic chemiluminescence imaging

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Embodiment Construction

[0024] The present invention will be further described in detail below with reference to the accompanying drawings, but the embodiments of the present invention are not limited to this.

[0025] by figure 1 It can be seen that the device includes a light receiving component 1, an analog-to-digital converter 2, a computer 3, and a printer 4. The light-receiving component is formed by connecting the light-collecting camera lens 1-1 and the detector 1-2; the light-receiving component 1, the analog-to-digital converter 2 and the computer 3 are electrically connected in turn; the printer 4 is connected to the calculation 3; 5 is three-dimensional Adjust the sample rack, put the ultrasonic to be tested on the rack, 6 is the dark room. Each component is selected to connect to form this device. Among them, the camera lens 1-1 is a large-value aperture lens (50mm, f / 1.2 type) made by Nikon, which is suitable for low-light shooting; the detector 1-2 is made by Princeton Instruments, the Un...

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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

(1) Technical field [0001] The invention relates to a sound field distribution measurement technology, in particular to a method and a device for measuring the sound field distribution by using sonochemiluminescence imaging. (2) Background technology [0002] At present, in the measurement of sound field distribution, the commonly used instrument is a piezoelectric hydrophone. The principle is that the sound pressure acts on the piezoelectric transducer to generate an electric signal, so the distribution of the sound at the measuring point can be judged according to the change of the electric signal. However, the instrument has many problems in the measurement process, which are mainly manifested in the following aspects: (1) During the measurement process, the instrument can only measure the change of sound at a certain point at a time, but cannot measure the entire ultrasonic field at the same time. Distribution. (2) It is necessary to move the position of the hydrophone when m...

Claims

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Application Information

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IPC IPC(8): G01H9/00G01N21/76
Inventor 邢达丁春峰何永红
Owner SOUTH CHINA NORMAL UNIVERSITY
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