Electricity: measuring and testing – Particle precession resonance – Using an electron resonance spectrometer system
Patent
1992-07-07
1993-04-20
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using an electron resonance spectrometer system
324318, G01R 3320
Patent
active
052046281
ABSTRACT:
An electron spin resonance system comprising a magnetic circuit in which a pair of permanent magnets are respectively attached to opposing surfaces of a pair of stationary yokes arranged opposite to each other by way of a gap, a movable yoke is disposed to at least one of the pair of the stationary yokes for continuously changing the distance between opposing surfaces of the stationary yokes, so that the magnetic resistance of a magnetic path formed by the permanent magnets, stationary yokes and movable yokes is varied continuously thereby forming a continuously varying magnetic field in the gap between the opposed permanent magnets, and a modulating magnetic field application coil for applying a modulating magnetic field and/or a sweeping magnetic field application coil for applying a sweeping magnetic field to the gap, a cavity resonator disposed in the gap in which a specimen to be measured can be inserted, and a microwave generator and a microwave detector disposed to the cavity resonator.
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Konishi Kenta
Nakanishi Akio
Sugahara Nahoko
Sumitomo Special Metal Co. Ltd.
Tokar Michael J.
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