Sound field detection method and system based on ultrasonic transducer array
An ultrasonic transducer and detection system technology, applied in the direction of measuring ultrasonic/sonic/infrasonic waves, instruments, measuring devices, etc., can solve problems such as the inability to realize two-dimensional sound field real-time monitoring, the inability to realize parallel processing, and the slow speed of sound field detection. Achieve the effect of improving sound field detection efficiency, reducing data processing time, and realizing parallel processing
Pending Publication Date: 2022-01-28
陕西博纵电子科技有限公司 +1
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Problems solved by technology
The traditional sound field detection technology mainly has the following problems: the sound field data acquisition method of two-dimensional point-by-point scanning takes a long time; a single point data acquisition cannot be processed in parallel; therefore, the sound field detection speed is slow
The traditional sound field detection method takes up to several hours for two-dimensional sound field detection, and cannot realize real-time monitoring of two-dimensional sound field
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[0032] The present invention will be further described in detail through the accompanying drawings and specific embodiments below.
[0033] Such as figure 2 As shown, an embodiment of an aspect of the present invention provides a sound field detection method based on an ultrasonic transducer array, including the following steps:
[0034] S1. Carry out a scanning motion in the sound field to be measured, acquire a position signal of the scanning motion and an acoustic signal in the sound field to be measured collected during the scanning motion, and convert the collected acoustic signal into an electrical signal;
[0035] S2, performing multi-channel data transmission on the collected electrical signal;
[0036] S3. According to the multi-channel data transmission signal, analyze the sound field detection signal and combine the obtained positioning information to obtain a spatially distributed sound field amplitude map and phase map. Further preferred, such as Figure 5 As ...
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The invention discloses a sound field detection method and system based on an ultrasonic transducer array. The method comprises the steps: carrying out scanning motion in a to-be-detected sound field, obtaining position signals of the scanning motion and sound signals, collected in the scanning motion process, in the to-be-detected sound field, and converting the collected sound signals into electric signals; performing multichannel data transmission on the collected electric signals; and according to the multichannel data transmission signals, analyzing sound field detection signals, and obtaining sound field amplitude diagrams and phase diagrams of spatial distribution in combination with the obtained positioning information. According to the invention, the ultrasonic transducer array is adopted to reduce the scanning dimension of motion scanning detection, the sound field detection efficiency is greatly improved, parallel processing of mass data is achieved in combination with the multi-channel data acquisition device, data processing time consumption is reduced, and high-speed data transmission is achieved.
Description
technical field [0001] The invention relates to the technical field of ultrasonic signal processing, in particular to a sound field detection method and detection system based on an ultrasonic transducer array. Background technique [0002] Ultrasound is widely used in the medical field due to its good directivity, large penetration depth and harmlessness to the human body, such as ultrasonic medical imaging, ultrasonic neuromodulation, ultrasonic ablation, etc. The application of such ultrasonic technology requires To ensure the accuracy of its ultrasonic medical equipment in detecting and treating patients, it is necessary to detect and calibrate the characteristics of the emitted ultrasonic sound field. [0003] Traditional sound field detection uses a single-element ultrasonic transducer, which is placed in the sound field to be tested. It needs to cooperate with a moving platform to obtain two-dimensional sound field distribution data by means of two-dimensional point-b...
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IPC IPC(8): G01H11/06
CPCG01H11/06
Inventor 费春龙陈俊谌东东陈强
Owner 陕西博纵电子科技有限公司