公开(公告)号：US20140130607A1

公开(公告)日：2014-05-15

申请号：US14232122

申请日：2012-07-12

申请人： Makoto Nakano ,  Masato Satou ,  Akihisa Adachi ,  Satoru Nishida ,  Takashi Nakashita ,  Yoshikazu Tanigaki

发明人： Makoto Nakano ,  Masato Satou ,  Akihisa Adachi ,  Satoru Nishida ,  Takashi Nakashita ,  Yoshikazu Tanigaki

IPC分类号： H04R31/00 ,  G10K11/18 ,  G01F1/66

CPC分类号： H04R31/00 ,  G01F1/66 ,  G01F1/662 ,  G10K11/18 ,  Y10T29/42

摘要： Provided are an acoustic matching member with a fixed density, an ultrasonic transmitter/receiver unit with a high sensitivity, and an ultrasonic flow meter device which attains stable and high-accurate flow measurement. An acoustic matching member comprises hollow elements and a binding agent. The acoustic matching member is created by removing hollow elements having higher densities, hollow elements having cracks, etc., from hollow elements before sorting-out. Since the hollow elements having higher densities, the hollow elements having cracks, etc., are removed from hollow elements before sorting-out, it becomes possible to provide an acoustic matching member having fixed characteristics without being affected by a manufacturing lot and a transportation process of the hollow elements. An ultrasonic transmitter/receiver unit created using the acoustic matching member has fixed characteristics and is able to perform high-accurate flow measurement.

摘要翻译： 提供具有固定密度的声匹配构件，具有高灵敏度的超声波发射器/接收器单元和实现稳定和高精度的流量测量的超声波流量计装置。 声匹配构件包括中空元件和粘合剂。 通过在分选之前从中空元件去除具有较高密度的空心元件，具有裂纹的中空元件等，来产生声匹配元件。 由于具有较高密度的中空元件，具有裂纹等的中空元件在分选之前从中空元件中去除，所以可以提供具有固定特性的声匹配元件，而不受制造批次的影响和运输过程 的中空元件。 使用声匹配构件制造的超声波发射器/接收器单元具有固定的特性，并且能够执行高精度的流量测量。