机电工程技术2025，Vol.54Issue(16)：29-34,6.DOI:10.3969/j.issn.1009-9492.2024.00136
基于FPGA的多通道超声波壁厚检测系统设计
Design of Multi-channel Ultrasonic Thickness Detection System Based on FPGA
摘要
Abstract
In response to the demand for efficient automatic detection of metal pipe wall thickness,a multi-channel ultrasonic metal wall thickness detection system based on FPGA is designed.The system hardware part uses Xilinx Spartan 6 FPGA as the control core and is composed of ultrasonic transmitting and receiving circuits.The FPGA implements sequential cyclic excitation and signal reception processing of the four ultrasonic channels.A new echo signal processing method is proposed,which processes the high-frequency weak echo signal into a TTL square wave signal,and uses FPGA to calculate the time intervals between the surface wave and primary bottom wave,surface wave and defect echo that characterize the metal wall thickness.The host computer program is designed,and the host computer is communicated with the FPGA through Gigabit Ethernet for thickness calculation and display.The designed ultrasonic metal wall thickness detection system has a resolution of less than 0.05 mm and realizes multi-channel signal acquisition and processing.The experimental results show that the multi-channel ultrasonic detector design using FPGA achieves efficient and accurate measurement and identification of device wall thickness.关键词
超声波测厚/FPGA/多通道采集Key words
ultrasonic thickness measurement/FPGA/multi-channel acquisition分类
通用工业技术引用本文复制引用
许云峰,高龙柱,王茂龙,吴善强,王斌锐..基于FPGA的多通道超声波壁厚检测系统设计[J].机电工程技术,2025,54(16):29-34,6.基金项目
浙江省"尖兵""领雁"研发攻关项目(2023C03186) （2023C03186）
国家自然科学基金青年科学基金项目(62303434) （62303434）
