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我们利用气泡比重轻的特点，采用机械装置先使绝大部分的气泡不通过超声测试区。然后对进 入测试区的气泡，利用有气泡时衰减会增大和声时会突变的原理，通过计算机软件判断接收波的 幅度是否过小，和声时有无突变，有效地排除了阵发性气泡对声速测量的影响。
We use the characteristics of light weight of the bubble, the use of mechanical devices to make most of the bubbles do not pass the ultrasonic test area. And then enter the test area of the bubble, the use of bubbles when the attenuation will increase when the harmony and the principle of mutation, the computer software to determine the extent of the received wave amplitude is too small, the harmony of the time without mutation, effectively ruled out paroxysmal bubbles Effect on sound velocity measurement.