论文部分内容阅读
HP5420A数字信号分析器是典型的双通道低频频谱和传递函数分析器。因为它能展示低频振荡情况,所以广泛地使用在机械结构、噪声、振动、控制系统、声学、相位噪声等电气和物理现象方面的分析。这个双通道分析器,分析频率范围从直流到25KHZ,分辨率可达40μHz;具有75dB的动态范围和不大于0.1dB的幅度不均匀度。它能做到瞬态采集和时间平均,自相关和互相关,直方图、线谱、自谱和互谱,传递函数和相干函数,以及冲击响应等功能的测量。被测信号可以是正弦、随机、瞬态和脉冲类型。内设工程单位标定器和供随机振动激励用的噪声发生器。测量结果显示在具有数字注解的、双迹高分辨率的HP1332A型阴极射线示波管
HP5420A digital signal analyzer is a typical dual-channel low-frequency spectrum and transfer function analyzer. Because of its ability to exhibit low-frequency oscillations, it is widely used in the analysis of electrical and physical phenomena such as mechanical structure, noise, vibration, control systems, acoustics, phase noise and the like. The dual-channel analyzer analyzes frequencies from dc to 25 kHz with a resolution of 40 μHz; has a dynamic range of 75 dB and amplitude non-uniformity of no more than 0.1 dB. It can do transient acquisition and time-average, autocorrelation and cross-correlation, histogram, line spectrum, self-spectrum and cross-spectrum, transfer functions and coherence functions, and shock response and other functions of the measurement. The measured signal can be sinusoidal, random, transient and pulse type. Internal engineering unit calibrator and for random vibration excitation noise generator. Measurement results show that with digital annotation, double track high resolution HP1332A cathode ray tube