公开(公告)号：US3789328A

公开(公告)日：1974-01-29

申请号：US3789328D

申请日：1972-06-22

申请人： UNITED RECORDING ELECT

发明人： PUTNAM M ,  COOPER D

IPC分类号： H03H9/02 ,  H03H9/30 ,  H03H7/30

CPC分类号： H03H9/30

摘要： Apparatus for terminating the transmitting line of an acoustical delay line in a tunable cavity having the characteristic impedance of the transmitting line. The cavity is terminated and tunable over the acoustical frequency range by means of selectively located helmholtz resonators operating upon the direct waves and the reflected waves from the terminating device for providing the selectively located resonators to compensate the frequency spectrum for both peaks and dips at different frequencies.

摘要翻译： 用于终止具有传输线的特征阻抗的可调谐腔中的声学延迟线的传输线的装置。 通过在直接波上工作的选择性定位的亥姆霍兹谐振器和来自端接装置的反射波来使空腔终止并在声频范围内可调谐，以提供选择性定位的谐振器，以补偿不同频率下的峰值和下降的频谱 。