发明名称 |
KAERNMAGNETISK RESONANSANORDNING MED YTSPOLEDETEKTERING. |
摘要 |
For measurements with increased accuracy in a nuclear magnetic resonance apparatus, the detection device is equipped with one or more surface coils which act as measuring coils. To avoid mutual interference between a radio-frequency transmitting coil and the measuring coil, the measuring coil is provided with a decoupling circuit. The surface coil and the decoupling circuit form a part of a tuned circuit which is tuned to a significantly higher natural frequency during activation of the transmitting coil. On the other hand, the transmitting coil is shorted during detection with the surface coil by a low resistance shorting circuit, thereby avoiding interference with the radio-frequency transmission signals. |
申请公布号 |
FI852042(L) |
申请公布日期 |
1985.11.26 |
申请号 |
FI19850002042 |
申请日期 |
1985.05.22 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
BOSKAMP, EDDY BENJAMIN;KEMNER, RUDOLF |
分类号 |
G01R33/20;A61B5/055;A61B10/00;G01R33/341;G01R33/36;G01R33/48 |
主分类号 |
G01R33/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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