Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1974-10-04
1976-12-21
Rolinec, R. V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
G01R 3312
Patent
active
039991202
ABSTRACT:
A spherical sector is fastened to the front faces of a soft-iron magnetic yoke of the magnet of a sensor probe used for thickness measurement. The spherical sector, which is the probe tip, is a ground half ball-bearing electrically welded to a flat plate at the end of a threaded shaft. A titanium carbide layer of spherical angle of approximately 60.degree. is deposited on the wear side of the spherical sector by gaseous diffusion in a range of approximately 4 - 6 .mu. in which the deviation of the layer thickness from the mean value is within 1 .mu..
REFERENCES:
patent: 2365592 (1944-12-01), Reason
patent: 2872350 (1959-02-01), Homer et al.
patent: 2903645 (1959-08-01), Wright et al.
patent: 3260927 (1966-07-01), Young
patent: 3440527 (1969-04-01), Steingroever
Karlsen Ernest F.
Rolinec R. V.
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