The Design And Implementation Of Ultrasonic Transducer Detection System

Ultrasonic anti-scaling has advantages of serial running on-line, high-degree automation, high reliability, no pollution and low operating cost. The technology of ultrasonic will be the developing direction of anti-scaling. As an energy conversion device, ultrasonic transducer is main part of the ultrasonic anti-scaling equipment and its performance affects the efficiency and reliability of anti-scaling directly. Therefore, studying on the ultrasonic transducer performance detection system has important realistic meanings.Now there is no standard strain on the high-power ultrasonic transducer evaluation. It was always depended on the touching feeling of experienced workers. This project focuses on the research of high-power ultrasonic transducer's detection performance, which has a wide application on anti-scaling in the industry pipeline. Specific performances indicators including maximum amplitude, average amplitude and frequency are proposed in this paper in order to evaluate ultrasonic transducer's efficiency and stability, and supply a reasonable standard on quality classification.The design of ultrasonic transducer detection system uses piezoelectric acceleration sensor, high speed A/D converter AD9201 to acquire and convert signals respectively. XC2S50 FPGA is selected as the core controller and Verilog hardware description language is used to realize the data collection, data buff and data pretreatment control. The system takes advantages of USB include high-speed transmission, hot swap support, easy to expand and less resources-taken to combine the data collection technology together. For Data transmission design, USB2.0 interface chip CY7C68013 is used as the main core. In order to realize high speed data transmission between the FPGA and PC, Slave FIFO interface mode is utilized. Combing driving program the host application program is constructed under the LabVIEW environment.At last the whole hardware and software designing are combined to debug and test the performance of the system. A large number of experiments indicate that the detection platform runs stably, the detection results well reflect the quality of the ultrasonic transducer, which provide a good criticize method in quality inspection.