H - Electricity – 01 – F
Patent
H - Electricity
01
F
117/24, 32/3
H01F 1/28 (2006.01) G01N 27/74 (2006.01) H01F 41/14 (2006.01) H01F 41/26 (2006.01)
Patent
CA 1267047
A B S T R A C T METHODS AND ARRANGEMENTS FOR CHARACTERIZING MAGNETIC COATING COMPOSITIONS AS WELL AS IMPROVING MAGNETIC PARTICLE DISPERSIONS A method and an arrangement is provided for charac- terizing magnetic coating compositions that contain magnetic particles dispersed in a solvent resin matrix. The probe material is subjected to an alternating magnetic field and vertically thereto to a constant magnetic field of appropriate field strength and duration. Via a measuring coil the induced signal in the probe material is monitored and different characteristics, preferably the degree of dispersion, are measured by measuring the magnetic susceptibility of the coating material. By applying a constant magnetic field the degree of dispersion can be changed at least for a certain time. The method and arrangement of the present invention can be incorporated in an in-line system into a coating apparatus to monitor the magnetic characteristica of the coating material as well as to improve and maintain such improved characteristics.
511437
Brunsch Arwed
Steiner Werner
Trippel Gerhard
Brunsch Arwed
International Business Machines Corporation
Na
Steiner Werner
Trippel Gerhard
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