公开(公告)号：US20040068205A1

公开(公告)日：2004-04-08

申请号：US10679799

申请日：2003-10-06

申请人： Southwest Research Institute

发明人： Susan W. Zogbi ,  Larry D. Canady ,  Jerome A. Helffrich ,  Stephen A. Cerwin ,  Kevin S. Honeyager ,  Armando de los Santos ,  Christopher B. Catterson

IPC分类号： A61B005/103

CPC分类号： A61B5/4504 ,  A61B5/0031 ,  A61B5/103 ,  A61B5/1121 ,  A61B5/1126 ,  A61B5/6878 ,  A61B5/6883 ,  A61B17/88 ,  A61B90/06

摘要： A system that remotely measures displacement between two objects. A passive sensor is affixed to each object, such that the sensors are substantially parallel. Each sensor has a permeable rod, a surrounding coil, and a tuning capacitor, and have substantially the same resonant frequency. When an interrogating device is placed near the sensors, the frequency responses of the sensors indicates their relative displacement and thus the displacement between the objects.

摘要翻译： 远程测量两个物体之间位移的系统。 无源传感器固定到每个物体上，使得传感器基本上平行。 每个传感器具有可渗透的杆，周围的线圈和调谐电容器，并且具有基本上相同的谐振频率。 当询问装置放置在传感器附近时，传感器的频率响应表示它们的相对位移，因此表示物体之间的位移。

公开(公告)号：US20020147416A1

公开(公告)日：2002-10-10

申请号：US09789832

申请日：2001-02-20

申请人： Southwest Research Institute

发明人： Susan W. Zogbi ,  Larry D. Canady ,  Jerome A. Helffrich ,  Stephen A. Cerwin ,  Kevin S. Honeyager ,  Armando de los Santos ,  Christopher B. Catterson

IPC分类号： A61B005/103

CPC分类号： A61B5/4504 ,  A61B5/0031 ,  A61B5/103 ,  A61B5/1121 ,  A61B5/1126 ,  A61B5/6878 ,  A61B5/6883 ,  A61B17/88 ,  A61B90/06

摘要： A system that remotely measures displacement between two objects. A passive sensor is affixed between the objects. The internal sensor uses magnetic coupling between two sensor elements to measure their relative displacement. The sensors are either a) a permeable rod and a complimentary coil in parallel with a tuning capacitor; or b) two permeable rods, each having its own surrounding coil and a tuning capacitor. One of the sensor elements is affixed to each object which is to be monitored. When an interrogating device is placed near the sensors, a resonance can be measured whose frequency characteristics change in a reproducible manner with the relative displacement of the sensors. The resulting resonance characteristics can be calibrated in such a way as to enable the displacement of the objects to be determined.

摘要翻译： 远程测量两个物体之间的位移的系统。 被动传感器固定在物体之间。 内部传感器使用两个传感器元件之间的磁耦合来测量它们的相对位移。 传感器是a）可变杆和与调谐电容并联的互补线圈; 或b）两个可渗透的棒，每个具有其自己的环绕线圈和调谐电容器。 其中一个传感器元件贴在要被监视的每个物体上。 当询问装置放置在传感器附近时，可以测量其频率特性以可再现的方式随传感器的相对位移而改变的共振。 所得到的共振特性可以被校准，以使能够确定的物体的位移。