Position control
    73.
    发明授权
    Position control 失效
    位置控制

    公开(公告)号:US4537075A

    公开(公告)日:1985-08-27

    申请号:US616780

    申请日:1984-06-01

    IPC分类号: G01N29/30 G05D3/12 G01N29/00

    CPC分类号: G01N29/30 G05D3/12

    摘要: In ultrasonic echo testing to detect flaws in manufactured articles, raw materials and such it is desirable to maintain a predetermined spacing and relative orientation of the ultrasonic transducer and the surface of the tested article. Thus, automatic scanning of the article by repetitively translating the transducer across its surface is difficult or impossible if the article surface is anything other than flat. Herein, a plurality of satellite transducers are mounted with and around a primary transducer on a motor-adjustable articulated transducer head in ultrasonic test equipment so as to receive part of the main beam echo and thereby produce respective distance signals, which signals are used by control apparatus to control the transducer head adjustment motor and thereby regulate the primary transducer position relative to the tested article.

    摘要翻译: 在用于检测制造物品的缺陷的超声波回波测试中,原料等,期望保持超声换能器和被测物品的表面的预定间隔和相对取向。 因此,如果制品表面不是平坦的,那么通过将换能器横过其表面重复地平移来对物品进行自动扫描是困难的或不可能的。 这里,多个卫星换能器安装在主换能器上并在其周围安装在超声波测试设备中的电动机可调节的关节式换能器头上,以便接收主波束回波的一部分,从而产生相应的距离信号,哪些信号由控制使用 用于控制换能器头部调节马达的装置,从而调节相对于被测试物品的主换能器位置。