Detector for use for measuring dimensions of an object
    1.
    发明授权
    Detector for use for measuring dimensions of an object 失效
    用于测量物体尺寸的检测器

    公开(公告)号:US4663588A

    公开(公告)日:1987-05-05

    申请号:US634791

    申请日:1984-07-26

    IPC分类号: G01D5/243 G01D5/247 G01B7/02

    CPC分类号: G01D5/247 G01D5/243

    摘要: A detector head for use in a measuring device includes a plurality of constituent measuring elements arranged in at least two blocks, each block producing an output signal of equal amplitude, and a phase shifter provided to shift the relative phases of the output signals of the blocks to have a predetermined relative phase difference, whereby selected higher-order harmonic components are cancelled from the resultant signal formed by summing the signals produced by the separate blocks of constituent elements.

    摘要翻译: 用于测量装置的检测器头包括布置在至少两个块中的多个构成测量元件,每个块产生相等振幅的输出信号,以及移相器,用于移位块的输出信号的相对相位 具有预定的相对相位差,从而通过对由分离的组成元件块产生的信号进行求和而形成的结果信号来消除所选择的高阶谐波分量。