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Automatic tuning apparatus and method for substance detection using nuclear quadrupole resonance and nuclear magnetic resonance
Automatic tuning apparatus and method for substance detection using nuclear quadrupole resonance and nuclear magnetic resonance
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机译:利用核四极共振和核磁共振进行物质检测的自动调谐装置和方法
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摘要
Apparatus for tuning a system for detecting a target substance through the use of nuclear quadrupole resonance (NQR) or nuclear magnetic resonance (NMR). The apparatus tunes an RF coil (34) which is employed to excite the substance under test. The tuning apparatus (36) includes a series of fixed value capacitors (93) switched in the tuning circuit by controllable switches (94). A programmable controller (21) is employed to control the switching and thereby the tuning of the coil.
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