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    • 3. 发明授权
    • Mechanical filter
    • 机械过滤器
    • US3931600A
    • 1976-01-06
    • US472987
    • 1974-05-24
    • Toshio NagashimaIchiro ImaguchiShigeo Igarashi
    • Toshio NagashimaIchiro ImaguchiShigeo Igarashi
    • H03H9/05H03H9/50H03H9/02H01L41/04H03H9/26H04R17/00
    • H03H9/50
    • In a mechanical filter, a pair of transducer elements of truncated circular cross-section are disposed at the input and output sides respectively, and they are mechanically connected in cascade to each other by means of a coupler member. The areas of the truncated cross-section of the transducer elements are made different from each other. Between said pair of transducer elements may be provided one or more resonator elements each provided with a recess and connected to each other and to said transducer elements by said coupler member. Each of the transducers and resonators are mounted on a mount base plate by means of a bent wire-like support member having a pair of legs. The foregoing mechanical filter is accommodated in a container which is pressure-reduced and hermetically sealed.
    • 在机械滤波器中,分别在输入侧和输出侧设置一对截面圆形横截面的换能器元件,并且它们通过耦合器部件彼此级联地机械连接。 换能器元件的截面横截面的区域彼此不同。 在所述一对换能器元件之间可以设置有一个或多个谐振器元件,每个谐振器元件设置有凹部并且通过所述耦合器构件彼此连接到所述换能器元件。 每个换能器和谐振器通过具有一对腿的弯曲的线状支撑构件安装在安装基板上。 上述机械过滤器被容纳在减压和气密密封的容器中。