Design Of The Measuring System For Ultrasonic Bone's Density

Recently,for purchasing more benefits,some illegal merchants use Clenbnterol as additive in feedstuff to raise the domestic animals and birds. Although doing that could shorten the raising period,and make the raise the domestic animals have the more bright flesh color and more muscle,it will do a great harm to human health. At present,the methods for measuring the Clenbnterol is very complicated and cost a lot of time and money. So it is not convenient for real time measurement.Considering the above problems,the disquisition designed a novel measurement system using ultrasonic to test the density of the domestic animals and birds'bones. After getting the density of bones,it would be possible to judge the exist of the Clenbnterol. Because using the Clenbnterol as the additive feedstuff,the domestic animals and birds will have lower density of bones comparing to normal ones. Ultrasonic inspecting system has many advantages. The system is very clean, has more energy to frequency choosing and anti-jamming, is easier to design. The mainly purpose of the disquisition is to inspect the density of the bones'of domestic animals and birds using the ultrasonic transmission method. After getting the standard results,the system will compare it to the density of the sample to be tested and then determine the age of the sample of it.The disquisition has been separated for several parts as follows: first, the disquisition introduced the basic principle of ultrasonic; then, designed a novel arithmetic based on the theory of Huygens; and then, designed hardware circuit of the system which included four module: sensor, information sampling, display and communication module; and then design the software of the system; at last analyse and compensate the error. When sampling the information , the system uses MSP430F449 as the kernel processor. It has 16 digit bus and flash memorizer, has great ability in processing data and has low power consuming. It is also easy to design for embedding many modules of periphery. The design of the system will be useful to test Clenbnterol Hydrochloridc and protect the rights of the consumers.