发明名称 |
ACTIVE SIGNAL CONDITIONING CIRCUITRY FOR WELL LOGGING AND MONITORING WHILE DRILLING NUCLEAR MAGNETIC RESONANCE SPECTROMETERS |
摘要 |
NMR transmitter/receiver antenna (20) active signal conditioning circuit that enables receiver antenna circuit protection from high voltage RF transmitter pulses, provides energy dumping for the entire antenna in successive stages (35,32,34) and eliminates retuning during sweeping of the antenna frequency.
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申请公布号 |
WO02095448(B1) |
申请公布日期 |
2003.11.20 |
申请号 |
WO2002US15375 |
申请日期 |
2002.05.15 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
KRUGLIAK, ZINOVY, B.;FORGANG, STANISLAV, W. |
分类号 |
G01R33/36;G01R33/44;G01V3/32;(IPC1-7):G01V3/00 |
主分类号 |
G01R33/36 |
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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