本文采用计算机多线程技术实现了实时信号数据采集分析 ,开发出了一种基于高速数据采集和实时信号分析的结构实验分析系统。该系统具有对给定结构进行振动噪声等信号的实时信号测试分析和进行实验模态分析等功能 ,具有广泛的适用性和良好的及时扩充功能、处理能力和性能价格比 In this paper, real-time signal data acquisition and analysis is realized by using computer multithreading technology, and a structure experiment analysis system based on high-speed data acquisition and real-time signal analysis is developed. The system has such functions as real-time signal testing and analysis of vibration and noise signals for a given structure and experimental modal analysis. It has wide applicability and good function of timely expansion, processing capacity and cost performance