驱动设计的难点在于必须保持激振信号幅度在合适的范围内，过大过小都不能驱动一次仪表正常工作。
The difficulty lies on keeping the amplitude in a proper range to activate the primary instrument, neither too high nor too low.
在柴油机使用过程中技术状态的改变将导致激振力发生不同的变化，因此测量机体激振信号有利于对柴油机技术状态进行监测。
The exciting forces will change when the technical states of diesel engine change. So to measure the body vibration can felicitate the monitoring of diesel engine technical states of.
设计出传感器输入输出信号调理电路和试验台架液压激振系统、磁流变阻尼器控制器的功率放大电路。
Design the signal adjust circuit for sensor, and the power amplification circuit for the hydraulic pressure system of test platform and the controller of magnetorheological dampers.
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