一、前言在振动台上进行的振动试验中,正弦扫频振动占有很重要位置,它是试验模型或原型在振动台上获得频响特性的重要手段之一.通过扫频振动,可以得到被测试件的动态响应,监测试件局部点处的力学参数,还可以在恒振条件下对各种力学传感器做宽频带的动态标定以及进行各种振动环境试验等. I. INTRODUCTION In the vibration test carried out on a vibrating table, the sine sweep swept plays a very important role and is one of the important means to obtain the frequency response of the test model or prototype on the vibrating table. By sweeping vibration, Test pieces of the dynamic response to monitor the specimen at the local mechanical parameters, but also in a variety of mechanical sensors under constant vibration to do wide-band dynamic calibration and a variety of vibration test environment.