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Transducer operational selection for ultrasonic analysis - utilises shift registers presenting three state logic signal to select columns and rows

机译:用于超声分析的换能器操作选择-利用移位寄存器提供三个状态逻辑信号来选择列和行

摘要

The ultrasonic analysis system has the transducers arranged in columns and rows. Shift registers select the columns and rows to determine beam pattern by presenting three state logic signal. The third state is used to limit the opening to reduce noise. Transducers arranged in rows and columns comprise a material with polarisation properties which respond to three logic states provided by logic gates via amplifiers. These gates are connected to registers driven from a programmer which determines in which state the transducers are set. In the logic zero state only a certain number of lines are operated to reduce noise.
机译:超声分析系统具有按列和行排列的换能器。移位寄存器通过显示三个状态逻辑信号来选择列和行,以确定光束方向图。第三状态用于限制开口以减小噪声。排列成行和列的换能器包括具有极化特性的材料,该材料响应由逻辑门通过放大器提供的三个逻辑状态。这些门连接到由编程器驱动的寄存器,该编程器确定换能器处于哪种状态。在逻辑零状态下,仅操作一定数量的线以降低噪声。

著录项

  • 公开/公告号FR2373056B2

    专利类型

  • 公开/公告日1980-12-05

    原文格式PDF

  • 申请/专利权人 LABO ELECTRONIQUE PHYSIQUE APPLI;

    申请/专利号FR19760036527

  • 发明设计人

    申请日1976-12-03

  • 分类号G01N29/00;

  • 国家 FR

  • 入库时间 2022-08-22 15:06:45

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