In chapter 3, introduce the frequency response characteristic test system based on correlation principle. Study the key technology, including signal compound by software, high speed data collection, position deviation rectify, signal processing.
第三章介绍了频率特性测试的互相关原理，并以互相关原理为基础设计了电液伺服阀频率特性的测试方案，研究了频率特性测试过程中的关键技术——软件信号合成、高速数据采集、动态液压缸位置纠偏、计算机信号处理。
参考来源 - 电液伺服阀分布式测试系统研发·2,447,543篇论文数据，部分数据来源于NoteExpress
The acoustic generator improves the frequency response characteristic and saves cost.
改善了发声器的频响特性，节约了成本。
Frequency response characteristic and amplitude response characteristic have been measured.
测量了幅度响应特性和频率响应特性。
Main dynamic performance is as follows, frequency response characteristic and steps response characteristic.
主要的动态性能有：频率响应特性和阶跃响应特性。
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