Measuring and testing – Vibration – By mechanical waves
Patent
1999-04-26
2000-10-17
Williams, Hezron
Measuring and testing
Vibration
By mechanical waves
73620, 73621, 310 905, 600437, 600443, 600453, G01N 2926
Patent
active
061314595
ABSTRACT:
A levitated rotor, neutrally buoyed in ultrasound transmission fluid, moves to position and aim an ultrasound transducer in up to five servo-controlled coordinates of position and tilt rotation. Stator drive/sense windings drive the rotor via a rotor magnet and sense coordinates via inductive interactions with a rotor coil. For five-axis control, one set of stator windings controls two-axis lateral translation while a second set controls axial translation plus two-axis tilt rotation. The windings produce a comparatively linear relationship between the five rotor geometric coordinates and the electromagnetic couplings that drive and sense these coordinates. To produce this linearity seamlessly over a wide coordinate range coming close to the windings, each set of windings is divided into overlapping subsets. A two-way drive/sense matrix mapping translates between up to five control coordinates and more than five winding circuits.
REFERENCES:
patent: 4092867 (1978-06-01), Matzuk
patent: 4874998 (1989-10-01), Hollis, Jr.
patent: 5160877 (1992-11-01), Fujiwara et al.
patent: 5313950 (1994-05-01), Ishikawa et al.
patent: 5558091 (1996-09-01), Acker et al.
patent: 5635784 (1997-06-01), Seale
patent: 5818137 (1998-10-01), Nichols et al.
patent: 5844140 (1998-12-01), Seale
patent: 5936370 (1999-08-01), Fukao et al.
Bergstrom Gary E.
Seale Joseph B.
Atwood Pierce
Caseiro Chris A.
Miller Rose M.
P. D. Coop, Inc.
Williams Hezron
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