A new method of low intensity radiated noise measurement is shown using acoustic combined sensor and combined signal processing with pressure and particle velocity.
本文研究运用组合传感器和声压、振速联合信号处理技术进行低噪声通过特性的测量。
The optical fiber transformer based on an optic electric conversion with low noise gains voltage measurement accuracy of 0.2%, satisfying the requirements of transient signal measurement.
基于低噪声光电探测电路设计的光纤电压互感器可获得0 .2 %的电压测量精度，并满足暂态信号的测量要求。
Its output ripple and low noise, and built-in measurement and basic programmable functions.
它的输出纹波和噪声较低，并内置测量和基本的可编程功能。
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