美国的科学家发现,汽车车辆的噪声主要是汽车发动机的震动通过汽车底盘传到车体而引起的。 那末,怎样减少这种噪声的污染呢?最近,英国科学家们研制出一种“活动机座”,用它产生的反震动来降低噪声。其原理是,通过特殊的传感器监测发动机的震动频率和振幅,再经过微机分析处理,指令机座产生“减震脉冲”,从而降 American scientists found that the noise of automobile vehicles is mainly caused by the vibration of the automobile engine which is transmitted to the vehicle body through the chassis of the automobile. How to reduce the noise pollution? Recently, British scientists have developed a “living base,” with its anti-vibration to reduce noise. The principle is that through a special sensor to monitor the vibration frequency and amplitude of the engine, and then through the computer analysis and processing, the command base to produce “shock pulse” to reduce