一、概述电动式激振器是一种“电—机”变换器。它是将电磁能转换为机械能,对试件提供激振力的一种试验设备。它的基本原理和电动式振动试验台一样,都是将交变的电流输入磁场中的线圈,线圈产生电动力,驱动线 First, an overview Electric exciter is a kind of “electric - machine” converter. It is a test device that converts electromagnetic energy into mechanical energy and provides exciting force to the specimen. Its basic principle is the same as that of the electric vibration test bench, which is to input the alternating current into the coil in the magnetic field, the coil generates electromotive force, and the driving line