Electricity: measuring and testing – Magnetic – Displacement
Patent
1996-08-16
1998-06-02
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
Displacement
32420722, 32420723, G01B 714
Patent
active
057605785
ABSTRACT:
A displacement sensor system is provided which is capable of simultaneously and independently detecting displacements in two directions orthogonal to an axis of an object to be detected, using a less number of displacement sensors than before. The displacement sensor system, for enabling the simultaneous detection of displacements in two directions orthogonal to an axial direction of a pillar-shaped member, has a plurality of displacement sensors positioned around the pillar-shaped member, and a detector circuit for receiving outputs of the plurality of displacement sensors to output signals indicative of displacements in the two directions orthogonal to the axial direction of the pillar-shaped member. The detector circuit includes a multi-bridge circuit for parallelly connecting a circuit having the plurality of displacement sensors connected in series to a plurality of resistor circuits. In one embodiment of the present invention, the pillar-shaped member has a square prism portion, and the plurality of displacement sensors include four displacement sensors, where the displacement sensors are positioned in a plane parallel to a set of opposite surfaces of the square prism portion and in the vicinity of four corners of the square prism portion, respectively. The four displacement sensors are connected in series to form an inductance circuit which constitutes a part of the multi-bridge circuit.
REFERENCES:
patent: 3010063 (1961-11-01), Rhoades
patent: 3397357 (1968-08-01), Metzker et al.
patent: 3743934 (1973-07-01), Risch
patent: 4024458 (1977-05-01), Templin
patent: 4223228 (1980-09-01), Kaplan
patent: 5397212 (1995-03-01), Wanatabe et al.
"Theory and Experiment of Magnetic Bearing Combining Radial Control and Thrust Control" The Transaction of the Institute of Electric Engineers, vol. 106, No. 2, Feb. 1986, pp. 55-62.
"Combined Lift and Guide Control for a Normal Conduction Magnetically Suspended Vehicle", Material No. LD-89-56, Linear Drive Studying Group of the Institute of Electric Engineers, 1989, pp. 41-50.
Hiraki Naoji
Moriyama Shinichi
Watanabe Katsuhide
Ebara Corporation
Strecker Gerard R.
LandOfFree
Inductive displacement sensor system detecting displacements in does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inductive displacement sensor system detecting displacements in , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inductive displacement sensor system detecting displacements in will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1464246