Process and device for measuring the initial permeability of fer

Details Process and device for measuring the initial permeability of fer Process and device for measuring the initial permeability of fer

1984-08-01

1987-03-10

Gruber, Felix D.

Boots, shoes, and leggings

324211, 324224, 324239, G01N 2772, G01R 3312, G06F 1532

Patent

active

046494952

ABSTRACT:
According to the process, a toroidal sample of ferrimagnetic material to be analyzed is placed in a thermostatically-controlled enclosure fitted with temperature regulation and detection means. The toroidal sample is submitted to an electro-magnetic magnetizing field of given frequency and the flux induced in the sample is measured directly using a measuring loop, around the sample and which is connected to a vectorial voltmeter.

REFERENCES:
patent: 2985300 (1961-05-01), Boehm et al.
patent: 3281668 (1966-10-01), Rosner et al.
patent: 3528001 (1970-09-01), Yntema
patent: 3720870 (1973-03-01), Sueda
patent: 4105971 (1978-08-01), Nevalainegn
patent: 4551681 (1985-11-01), Seeley
"An Apparatus for the Measurement of Initial Magnetic Permeability as a Function of Temperature" by Cedillo et al: J. Phys. E. Sci. Instrument, vol. 13, 1980, pp. 383-386.
"Primary Transducers for Measurement if the Parameters of Magnetic Materials at hf" by Simkin et al: Measurement Techniques, vol. 24, No. 3, Mar. 1981, pp. 242 and 243.

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