TRANSDUCER OF QUADRUPLE NUCLEAR-RESONANCE PULSE SPECTROMETER Russian patent published in 2004 - IPC

FIELD: recording quadruple nuclear resonance.

SUBSTANCE: proposed transducer has generator, specimen-carrying inductance coil, and capacitor, all forming resonance-tuned circuit, as well as preamplifier, diodes connected in parallel opposition, capacitor, and inductance coil one of whose leads is grounded. Transducer is characterized in that inductance coil whose other lead is connected to capacitor is coupled through common magnetic field with specimen-carrying inductance coil. Second lead of capacitor is connected to preamplifier, one lead of primary winding of newly introduced transformer being grounded and other one, connected to generator output; transformer secondary winding is connected between specimen-carrying coil and resonance-tuned circuit capacitor; primary winding of transducer transformer incorporates provision for changing its turn number.

EFFECT: enhanced sensitivity in broad frequency band due to optimal matching of generator with resonance-tuned circuit.

1 cl, 1 dwg