发明名称 |
Force measuring transducer |
摘要 |
The invention relates to a force measuring transducer with an oscillator ( 1 ) with an inductor ( 2 ) formed by a primary winding and a gauge ( 11 ) with a secondary winding ( 30 ) which is connected electroconductively to the gauge ( 11 ) and which is disposed in transformer coupling with the inductor ( 2 ) of the oscillator ( 1 ). Action of a force on the gauge ( 11 ) changes the impedance of the gauge ( 11 ) and the load of the inductively coupled secondary winding ( 30 ). An evaluation circuit ( 14 ) is used to determine the resulting frequency change of the oscillator ( 1 ) which is proportional to the force acting on the gauge ( 11 ).
|
申请公布号 |
US2005115330(A1) |
申请公布日期 |
2005.06.02 |
申请号 |
US20040944451 |
申请日期 |
2004.09.17 |
申请人 |
STAREK BRUNO;VEKOERRER FRANZ;PURNER HELMUT |
发明人 |
STAREK BRUNO;VEKOERRER FRANZ;PURNER HELMUT |
分类号 |
A61B5/22;A61C19/05;G01L1/12;G01L5/00;(IPC1-7):G01L1/00 |
主分类号 |
A61B5/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|