Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-10-18
1978-09-12
Tokar, M.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 05MA, G01R 3308
Patent
active
041140877
ABSTRACT:
Apparatus for measuring magnetic field strength which comprises two Nuclear Magnetic Resonance cells (the NMR cells), a field generator for applying to the NMR cells bias magnetic field which is parallel and of substantially equal strength at each NMR cell, an excitation assembly for separately magnetically exciting each NMR cell at its own Larmor precession, or resonance, frequency, and a device for deriving a signal in accord with the difference between the Larmor frequencies of the two cells. When the NMR cells further receive test magnetic field which is of substantially equal strength at each NMR cell and which is parallel to, and at one cell is in the same direction, and at the other cell is in the opposite direction to, the bias field at the respective NMR cells, resultant magnetic fields of strengths equal to the sum and difference of the stengths of the bias and test fields will be experienced by the one and the other NMR cell respectively, and it is shown that the difference signal derived indicates the magnitude of the test field.
REFERENCES:
patent: 3114103 (1963-12-01), Serson
patent: 3199021 (1965-08-01), Anderson
patent: 3495163 (1970-02-01), Salvi
patent: 3501690 (1970-03-01), Salvi et al.
patent: 3559045 (1971-01-01), Robach et al.
Brentford Electric Limited
Rosen Daniel M.
Tokar M.
LandOfFree
Magnetic or electric measuring devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic or electric measuring devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic or electric measuring devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2386258