过去,1955～1960年间,振动测量及数据处理是用普通的振动计和电磁示波器作的。用数据记录器记录数据是比较少见的。当时,在理论上人们虽然已经知道可以运用机被阻抗技术、相关分析、功率谱分析技术进行振动分析是很有效的,但是要把它用到实际中去,还存在许多问题. In the past, between 1955 and 1960, vibration measurements and data processing were done using ordinary vibrometers and electromagnetic scopes. It is relatively rare to record data with a data logger. At that time, in theory, though people already knew that it was effective to use the impedance technique, correlation analysis and power spectrum analysis technique to carry out vibration analysis, there are still many problems to be put into practice.