| With the development of science and technology, the environmentalprotection called people more and more urgent requirement. No matterfor industrial manufacturing or human itself, nondestructive and withoutany side effects have all become high-frequency words. Because of thegood acoustic and avirulent characteristics, ultrasonic is more and moreextensive application in the test, treatment, and other fields. This paperexplores the two typical application in the area of ultrasonic detectionand medical care which base on the main propagation characteristics andthe acoustic mechanism of ultrasonic.This paper comes to a certaininnovation on the former related work and puts forward the idea of thefuture. The main research work are as follows:(1)According to the propagation characteristics of ultrasound in thevarious media,this paper completed the design of the ultrasonic probewhich include the ultrasound probe of focus straight, the ultrasoundprobe of TR and the ultrasound probe of wheel-style.(2)According to the mechanism of ultrasonic pulse reflection methodand the characteristic of FPGA, this paper designs the system of ultrasonic thickness measurement which is high speed and highprecision.The hardware circuit of ultrasonic echo and the softwarebased on FPGA are completed. Comparing with the traditional portablethickness gauge based on single chip micyoco, this system has a higherspeed of sample and high accuracy. With the help of the ultrasoundprobe of wheel-style,the continuous measurement of thickness with allthe cover can be compeleted.(3)Combining the pervious work and the related literature,the paperdiscussed the mechanism of the ultrasonic penetration enhancersmethod.On the basis of transdermal drug delivery systems, the paperdesigns the experiments to study the main factors which influences theeffect of ultrasonic penetration enhancers method.All of the above workis the data accumulation and theoretical exploration for the ultrasonicbone. |
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