Measuring system of high-intensity focusing ultrasonic sound field

Abstract

The invention relates to a measuring system of a high-intensity focusing ultrasonic sound field. The measuring system comprises an intelligent data processing module, a multi-degree of freedom progressive scanning control module, a data acquisition module and a hydrophone, wherein the intelligent data processing module sends a command to the multi-degree of freedom progressive scanning control module to perform intelligent sound field scanning, and acquires corresponding sound field distribution and sound field parameters according to acquired data; the data acquisition module acquires voltage signals sensed by the hydrophone; the multi-degree of freedom progressive scanning control module consists of a three-dimensional step motor controller, a three-dimensional motion device and a hydrophone fixing device; and a sound-absorbing rubber is adhered to the bottom surface of the hydrophone fixing device. The three-dimensional motion device performs the motion modes of inching, increment or synchronous increment and the like according to the command of the three-dimensional step motor controller; and the three-dimensional step motor controller controls multi-shaft simultaneous motion, single-shaft uniform motion or single-shaft variable motion according to the command of the intelligent data processing module. The measuring system can realize quick, accurate, intelligent and graphical ultrasonic sound field measurement.

Description

technical field [0001] The invention relates to a high-intensity focused ultrasonic sound field measurement system, which is particularly suitable for the sound field measurement of a single-array element or multi-array element high-intensity focused ultrasonic treatment system, and belongs to the field of medical measuring instruments. Background technique [0002] High-intensity focused ultrasound technology is a treatment method that causes damage to the treatment area, and its safe dose and therapeutic effect deserve special attention. The performance of the transducer, the therapeutic effect and the scope of application are closely related to the distribution of the focused sound field, so the measurement and description of the high-intensity focused sound field is increasingly important. [0003] Found through literature search to prior art: [0004] (1) The Chinese patent publication number is CN1461942, published on December 17, 2003, and the patent name is: sound f...

AI Technical Summary

Problems solved by technology

Its disadvantage is that the device is a manual single-point measurement and cannot quickly scan the sound field

Its shortcoming is that the system uses a planar polyvinylidene fluoride piezoelectric film, which cannot weaken the influence of ultrasonic reflection on the measurement, especially when measuring the ultrasonic transducer in the continuous wave mode

Its disadvantages are: the device is manually adjusted, the structure of the device is complex, and the ultrasonic reflection has a great influence on the measurement. When the ultrasonic transducer is in the continuous wave transmission mode, it may not be possible to measure

Its shortcoming is that the data acquisition device can only collect the sound field on a certain plane perpendicular to the propagation axis of the sound beam, so it cannot perform fast and accurate three-dimensional scanning of the sound field focus area

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