Electricity: measuring and testing – Magnetic – Displacement
Patent
1995-03-27
1996-10-01
Snow, Walter E.
Electricity: measuring and testing
Magnetic
Displacement
32420722, 32420725, G01D 522, G01B 730, G01B 714
Patent
active
055613756
ABSTRACT:
Variable-reluctance absolute-angular-position sensor including at least one tator member (A). The stator member includes at least one fixed armature (2) made of soft ferromagnetic material, with a central core defining two mutually opposed transverse faces (9, 10) shaped in order to define an air gap (11) of non-constant thickness between them. At least one annular coil (4) surrounds the cores; and at least one rotor member (B) which includes at least one disc (3) extends into the abovementioned air gap and rotates about an axis (X) substantially coaxial with the core. The disc is made of a soft ferromagnetic material or a non-magnetic material which is a good electrical conductor.
Snow Walter E.
Societe D'Applications Generales D'Electricite et de Mecanique S
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