CF-920 FFT信号分析仪与IBM-PC及其兼容机之间的数据通信

主要介绍了利用ＧＰＩＢ－ＰＣ接口机实现ＣＦ－９２０ＦＦＴ信号分析仪与ＩＢＭ－ＰＣ及其兼容机之间的二进制数据（时域波形、自相关系数、互相关系数、自功率谱、互功率谱、幅值概率密度函数等）通信,以及由二进制数据转换成十进制数据的公式。文中讨论了由振动计、磁带记录仪、ＣＦ－９２０ＦＦＴ信号分析仪、计算机所组成的监测与分析系统的量值标定方法。

Data Communication between CF-920 FFT Signal Analyzer and IBM-PC

Mainly introduces the computer program for the communication of binary data,which include time axis wave form,auto correlation coefficient,cross correlation coefficient,auto power spectrum, cross power spectrum,amplitude probability density function, transform function,coherent function,coherent power,pulse response,etc.,between CF 920 FFT signal analyzer and IBM PC by GPIB PC interface board and some conversion formulas from the binary data above to the digital data for the purpose of analyzing the results analyzed by CF 920 FFT signal analyzer further. According to the determination method of the conversion coefficient from voltage quantity to vibration quantity,such as vibration speed,for the monitoring and analysis system,which consists of a vibration measuring instrument, a tape recorder,a signal analyzer and a computer,the data,whose unit is the one of vibration quantity,can be received for condition monitoring and fault diagnosis of mechanical equipments or other purposes.