着磁モードの光学的測定について

概要

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Our deVelopment of a Double Stator type pulse motor for quartz watches is one of the applications of rare earth cobalt magnets having excellent magnetic characteristics. Further study has verified that a technique for effectively magnetizing of a rotor will be of a great use for producing a smaller-sized, higher-torque motor. In a course of improving this technique, an observation system which enables the indication of the magnetization status as a pattern, has become essential. This paper describes the magneto-optical measurements with MnBi thin films in the following sequence. 1. Comparison of various systems for measuring a magnetic field 2. The observation principle and system for the magnetization mode on a rotor in which Kerr effect is applied with MnBi thin films 3. The domain structure and the magnetic characteristics on MnBi thin films 4. Observations
社団法人日本時計学会の論文
1978-03-25