Electricity: measuring and testing – Magnetic – Displacement
Patent
1985-11-26
1987-05-26
Levy, Stewart J.
Electricity: measuring and testing
Magnetic
Displacement
73 59, G01B 714, G01N 1114
Patent
active
046689117
ABSTRACT:
An angular displacement indicating apparatus includes internal and external magnets disposed so that the external magnet tracks the internal magnet when a shaft to which the internal magnet is connected rotates. The external magnet is connected to a rotary variable differential transformer, for example, so that the external magnet moves from a null position in response to rotation of the internal shaft thereby causing the transformer to generate an electrical signal proportional to the angle of rotation of the shaft. Embodiments of the invention include external connecting mechanisms which can be moved to physically indicate the actual angle of deflection of the internal shaft.
REFERENCES:
patent: 2096222 (1937-10-01), Bock
patent: 2266733 (1941-12-01), Bays et al.
patent: 2603087 (1952-07-01), Von Hortenau
patent: 3347089 (1967-10-01), Perry
patent: 3402729 (1968-09-01), Richmond et al.
patent: 3751975 (1973-08-01), Katsura
patent: 3977248 (1976-08-01), Metzger
patent: 4044602 (1977-08-01), Higgs et al.
patent: 4157036 (1979-06-01), Kivenson
patent: 4175425 (1979-11-01), Brookfield
patent: 4299118 (1981-11-01), Gau et al.
patent: 4466276 (1984-08-01), Ruyak et al.
patent: 4484468 (1984-11-01), Gau et al.
SPE 9285--Transition Time of Cement Slurries Between the Fluid and Set State.
Berning Scott A.
Mueller James W.
Duzan James R.
Gilbert III E. Harrison
Halliburton Company
Levy Stewart J.
Raevis Robert R.
LandOfFree
Apparatus for making non-contact angular deflection measurements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for making non-contact angular deflection measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for making non-contact angular deflection measurements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-706143