苏联Ю.K.Pоменов的诊断方法是用振动声学诊断法来诊断内燃机工作时的机械状态。为提高诊断准确度,在分割振动脉冲之前,使振动和选通脉冲振幅值的起动持续时间进行转换.内燃机的振动传感器产生的初始振动——声信号记录在双通道记录器的一个通道上,通过高行程和低行程标识器的选通脉冲记录在另一通道上。在曲轴转动几转后,记录器从“记录”方式转换到 Soviet Union Ю.K.Pоменов diagnostic method is to use vibroacoustic diagnostic method to diagnose the internal combustion engine working condition. To improve diagnostic accuracy, the vibration and strobe pulse amplitude durations are converted prior to dividing the vibration pulse.The initial vibration-sound signal generated by the vibration sensor of the internal combustion engine is recorded on one channel of the dual-channel recorder, Strobe through high-stroke and low-stroke markers is recorded on another channel. After a few crankshaft revolutions, the recorder switches from “Record ” to