Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1979-02-21
1981-08-18
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
G01N 2700
Patent
active
042849497
ABSTRACT:
A nuclear magnetic resonance technique that allows simultaneous temperature determination and spectral acquisition. The technique employs a modification of the lock circuit of a Varian XL-100 Spectrometer which permits accurate measurement of the difference in resonance frequency between a primary lock nucleus and another, secondary, nucleus. The field stabilization function of the main lock circuit is not compromised. A feedback signal having a frequency equal to the frequency difference is substituted for the normal power supply in the spectrometer's existing radio frequency transmitter to modulate that transmitter. Thus, the transmitter's radio frequency signal is enhanced in a frequency corresponding to the resonance peak of the secondary nucleus. Determination of the frequency difference allows the determination of temperature without interference with the observed spectrum. The feedback character of the circuit and the presence of noise make the circuit self-activating.
REFERENCES:
A. Ohte, "A Precision NOR Thermometer", IEEE Transactions on Inst. and Measurement, vol. IM-25, No. 4, pp. 357-362, Dec. 1976.
D. B. Utton, "Thermometry of NQR", Inst. Tech., vol. 23, No. 12, pp. 47-52, Dec. 1976.
Peterson Paul E.
Vidrine Drouet W.
Nicolet Instrument Corporation
Tokar Michael J.
LandOfFree
Nuclear magnetic resonance spectrometer and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nuclear magnetic resonance spectrometer and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear magnetic resonance spectrometer and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-40073