摘要
提出了一种测试系统频率特性的新方法———改进双通道继电反馈测试。与传统测试方法相比 ,这种方法能避免困难的信号设计过程 ,不需要独立的信号发生设备。更重要的是 ,它是一种闭环测试方法 ,测试过程中系统处在受控状态。对典型过程对象的仿真取得了非常好的结果 。
A novel test method for extracting frequency characteristics is presented.Compared with traditional methods,difficult test signal design is avoided and isolated signal producing device isn't needed. Most important,it is a kind of closed loop test and lead to the least effect on process.The simulation to classical processes shows excellent result and verifies the validity of presented new test scheme.
出处
《测控技术》
CSCD
2002年第2期18-20,共3页
Measurement & Control Technology
关键词
频率特性
测试
极限环
双通道继电反馈测试系统
frequency characteristic test
limit cycle
two channel relay
relay feedback