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Invention Publication
CN104365118A 超声波发送接收器以及具备该超声波发送接收器的超声波流量计 有权

超声波发送接收器以及具备该超声波发送接收器的超声波流量计
Abstract:
超声波发送接收器(5、6、30)具备：金属板(16、31)；声匹配体(15)，其固定于上述金属板的一个面；压电体(17)，其固定于上述金属板的另一个面，用于产生振动；以及绝缘性减振部件(11、20)，其覆盖上述压电体的、与上述金属板固定的固定面的相反侧的面，其中，上述绝缘性减振部件的厚度尺寸被设定为在上述绝缘性减振部件中传播的上述振动的波长的n/2的长度尺寸。
Abstract(English):

The ultrasonic echo sounder transducer (5, 6, 30) is provided with a metal plate (16, 31), an acoustic matching body (15) fixed to one surface of the metal plate, a piezoelectric substance (17) that is fixed on the other surface of the metal plate and generates vibrations, and an insulating damping member (11, 20) for covering the surface of the piezoelectric substance on the side opposite to the surface where the metal plate is fixed. The thickness of the insulating damping member is set to be n/2 of the wavelength of the vibrations propagated in the insulating damping member.

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