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一、概述 JCM-101是一种多通道、多速模拟磁带记录器。采用调频录还方式,具有中等信息容量和中等精度。主要为满足我所振动、冲击、噪声试验和其他物理量实验的数据收集的要求而设计。经过约五年在我部及一些有关科研单位的使用证明,除某些元器件的可靠性尚差外,基本能满足此类数据收集的要求。所谓调频录还方式,系指以输入模拟信号调制本机中心振荡频率,将此调频方波饱和记录在磁带上。还出信号经整形后,恢复到与记录时的调频方波相同的波形,通过解调(鉴
I. Overview JCM-101 is a multi-channel, multi-speed analog tape recorder. Using FM recording method, with medium information capacity and medium accuracy. Designed primarily to meet the data collection requirements of my vibrations, shocks, noise tests and other physical quantities. After about five years of use in our ministry and some related research institutes, it has been proved that the data collection requirements can basically be met except for the reliability of certain components. The so-called FM recording method, refers to the input analog signal modulation local center oscillation frequency, the FM square wave saturation recorded on the tape. Also out of the signal after shaping, restored to the same frequency with the recorded FM square wave, through the demodulation (Kam