基于FPGA的对击锤力能参数测量仪设计

Design of Counter-blow Hammer Energy Parameters Measuring Instrument Based on FPGA

摘要:

为实现在锻造生产中对击锤打击能量、打击力等力能参数的测量,设计了一种基于FPGA与USB2.0的四通道、高速同步数据采集系统；硬件采用两个压电式加速度传感器和两个位移传感器,FPGA选用Altera公司的EP2C5Q240I8,通过对打击过程中524 ms内的加速度和位移数据的采集,计算出力能参数,并通过USB2.0将数据实时上传到PC机进行处理；重点介绍系统硬件电路设计、USB2.0控制逻辑和FPGA内部状态机模块设计；系统采样频率达到1 MHz,数据传输速率达到30 MB/s,现场测试证明,该系统能够在强冲击、大振动环境下稳定可靠工作,为锻造质量控制提供了可靠的科学依据。

Abstract:

To achieve in the forging production parameter measurement of hammer blow energy, blow force and other force, design a kind of four channels, based on FPGA and USB2.0 high-speed synchronous data acquisition system. The hardware uses two piezoelectric acceleration sensor and displacement sensor, uses Altera FPGA EP2C5Q240I8, based on the hit within 524 ms of acceleration and displacement in the process of the value of the collection, calculation can output parameters, and real-time uploaded to PC through USB2.0 data for processing. This paper introduces the system hardware circuit design, USB2.0 control logic and the FPGA internal state desktop module design. The system sampling frequency reaches 1MHz, the data transmission rate reaches 30Mb/s. Field test indicates that the system can in strong shock, vibration environment is stable and reliable work, the quality control of forging provide reliable scientific basis.