机器在运转中所产生的振动和噪声,不仅破坏环境造成公害,而且还会引起机器零件的磨损和松动,严重影响机器的使用寿命。因为噪声是由振动所产生的,特别是在利用声波测量的仪器(如海洋探测器等)上,仪器的轻微振动都会干扰声波传感系统而损害测量的精确度。在正常环境下噪声水平应低子50dB,当噪声达到130dB时就会使人感到烦噪不安,150dB时就令人难以忍受。在机器上的振动噪声达到180dB时,将会引起 The vibration and noise generated during the operation of the machine not only cause damage to the environment but also cause wear and tear of the machine parts which seriously affect the service life of the machine. Because the noise is generated by vibration, especially in the use of sonic measurement instruments (such as ocean detectors, etc.), the slight vibration of the instrument will interfere with the sonic sensing system and undermine the accuracy of measurement. Under normal circumstances the noise level should be sub-50dB, when the noise reaches 130dB people feel annoying and uneasy, 150dB unbearable. Vibration noise on the machine reaches 180dB, it will cause