Apparatus For Determining and/or Monitoring a Process Variable of a Medium
    21.
    发明申请
    Apparatus For Determining and/or Monitoring a Process Variable of a Medium 有权
    用于确定和/或监测介质过程变量的装置

    公开(公告)号:US20080134788A1

    公开(公告)日:2008-06-12

    申请号:US11597854

    申请日:2005-05-23

    IPC分类号: G01N29/036

    摘要: An apparatus for determining and/or monitoring at least one process variable of a medium, and includes a sensor unit, a feedback electronics and a supplemental electronics. The sensor unit, feedback electronics and supplemental electronics form a first oscillatory circuit, which oscillates with at least one resonance frequency (ω1) and/or with a resonance frequency (ωres) within at least one resonance frequency range. The feedback electronics and the supplemental electronics form a second oscillatory circuit, which oscillates at a resonance frequency (ωcablebreak), which differs from the resonance frequency (ωres, ω1) of the first oscillatory circuit.

    摘要翻译: 一种用于确定和/或监视介质的至少一个过程变量的装置,并且包括传感器单元,反馈电子装置和补充电子装置。 传感器单元,反馈电子器件和辅助电子器件形成第一振荡电路,其以至少一个谐振频率(ω-1)和/或谐振频率(ω-SUB)/ >)在至少一个谐振频率范围内。 反馈电子器件和辅助电子器件形成第二振荡电路,其以谐振频率(ω,电缆断开)振荡,谐振频率不同于谐振频率ωω, SUB> 1 )。