Dual differential interferometer
    1.
    发明授权
    Dual differential interferometer 失效
    双差分干涉仪

    公开(公告)号:US4512661A

    公开(公告)日:1985-04-23

    申请号:US414237

    申请日:1982-09-02

    IPC分类号: G01H9/00 G01B9/02

    CPC分类号: G01H9/00

    摘要: A dual two-beam differential interferometer that measures both the amplitude and orientation of propagating, broadband surface acoustic waves. Four beams are focused on a surface. The four reflected beams are separated into two pairs. The two pairs are detected to produce two signals that are used to compute amplitude and orientation.

    摘要翻译: 双光束差分干涉仪,用于测量传播宽带表面声波的振幅和方向。 四个光束聚焦在表面上。 四个反射光束被分成两对。 检测到两对以产生用于计算幅度和取向的两个信号。