论文部分内容阅读
(一)概况我厂于78年从日本小野测器制作公司引进了CF—700数据分析装置。多年来用它分析了0—100千赫内的振动、音响、冲击、噪声和其他随机时序信号。本装置是一台以小型通用计算机为中心的数据处理系统,核心部分是FFT算法。它同时采样两路模拟输入信号,经模数转换和不同运算处理后,分别得到被测信号的频率特性、相关函数、传递函数和相干函数等。
(一) Overview Our factory introduced the CF-700 data analysis device from Japan’s Onozoa in 1978. Over the years it has been used to analyze vibration, sound, shock, noise and other random timing signals in the 0-100 kHz range. The device is a small general-purpose computer-centric data processing system, the core part of the FFT algorithm. It samples two analog input signals at the same time. After the analog-digital conversion and different operations, the frequency characteristics, correlation functions, transfer functions and coherence functions of the measured signals are obtained respectively.