频率特性测试仪俗称扫频仪，用于测量网络（电路）的频率特性，如测量滤波器,放大器，高频调谐器，双工器、天线等的频率特性，而且往往用于对这些电子设备或网络的测试，也是实验室中常用的电子测量仪器之一。
frequency-booster 升频器 frequency-characteristic measuring-testing instrument 频率特性测试仪 frequency-controlled laser 频控激光器 ..
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本文介绍电液伺服阀频率特性的压差式测试原理及频率特性测试仪的硬软件结构、原理及特点。
This paper presents the principle, hardware structure, and features of a frequency characteristics instrument for electro-hydraulic servo valves.
扫频仪也称频率特性测试仪，用于测试网络的幅频特性和相频特性，在现代电子测量中占有重要的位置。
The digital tester for frequency response characteristic, which is also called frequency-sweeping instrument, plays a very important role in modern electronic measurement.
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