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1. 发明申请

US20100134123A1 SENSOR SYSTEM HAVING A MAGNETOELASTIC DEFORMATION ELEMENT 失效
标题翻译：具有磁性变形元件的传感器系统
公开(公告)号：US20100134123A1
公开(公告)日：2010-06-03
申请号：US12624580
申请日：2009-11-24
申请人： Reinhard NOPPER , Denis Gugel , Andreas Arlt , Klaus Walter , Frank Schatz , Janpeter Wolff
发明人： Reinhard NOPPER , Denis Gugel , Andreas Arlt , Klaus Walter , Frank Schatz , Janpeter Wolff
IPC分类号： G01R27/08 , G01R33/18
CPC分类号： G01L9/0004 , G01L9/16
摘要： A sensor system is provided having an at least partially magnetoelastic deformation element for measuring pressures, caused by a fluid, that are able to be applied to the magnetoelastic deformation element, having a magnetic circuit formed via a magnetic flux feedback and having a sensor unit and an evaluation unit. The sensor unit is positioned at the deformation element and the evaluation unit having an evaluation coil is structurally separated from, yet inductively coupled to the sensor unit. The sensor unit has a sensor coil positioned on the deformation element and the evaluation unit has the evaluation coil that is inductively coupled to the sensor coil, the sensor coil forms a resonant circuit, using its own parasitic capacitance or using an additional capacitance, which is able to be energized by the evaluation coil in free resonance with strong or weak inductive coupling by a magnetic circuit enclosing the two coils. Alternatively, the sensor unit and the evaluation unit may be coupled via a magnetic circuit having a flux feedback, and the evaluation coil may be wound around the fixed or mountable flux feedback, a permeability change effected by the application of pressure to the deformation element, and thus a change in the inductance of the evaluation coil being able to be determined.
摘要翻译：提供一种传感器系统，其具有至少部分磁弹性变形元件，用于测量能够被施加到磁弹性变形元件的由流体引起的压力，具有经由磁通量反馈形成的磁路并具有传感器单元和评估单位。传感器单元位于变形元件处，并且具有评估线圈的评估单元在结构上与传感器单元分离，然后电感耦合。传感器单元具有定位在变形元件上的传感器线圈，并且评估单元具有感应耦合到传感器线圈的评估线圈，传感器线圈使用其自身的寄生电容或使用额外的电容形成谐振电路，其为能够通过由包围两个线圈的磁路的强耦合或弱感应耦合而由评估线圈进行自由谐振激励。或者，传感器单元和评估单元可以经由具有磁通反馈的磁路耦合，并且评估线圈可以缠绕在固定或可安装的磁通反馈上，通过向变形元件施加压力而实现的磁导率变化，因此可以确定评估线圈的电感的变化。

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