Contact-free slip ring for survey instrumentation

Details Contact-free slip ring for survey instrumentation Contact-free slip ring for survey instrumentation

2007-03-06

2007-03-06

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Movable coupler

C385S134000, C385S139000

Reexamination Certificate

active

11081976

ABSTRACT:
A contact free rotary transformer assembly can be used to transfer power and information between a stationary portion and a rotatable portion of a laser scanning device. The rotary transformer can consist of a pair of substantially parallel ferrite rings, each having disposed therein a coil for passing AC current. The assembly can use an optical fiber positioned near a rotational axis of the transformer to transfer optical information between the stationary and rotary portions. The optical fiber can include two portions connected by a rotational connection in order to allow the portions to rotate with respect to one another while maintaining the light path.

REFERENCES:
patent: 5691687 (1997-11-01), Kumagai et al.
patent: 5988862 (1999-11-01), Kacyra et al.
patent: 6420698 (2002-07-01), Dimsdale
patent: 6452668 (2002-09-01), Pratt
patent: 6593582 (2003-07-01), Lee et al.
patent: 6604068 (2003-08-01), Bukowski et al.
patent: 6630993 (2003-10-01), Hedges et al.
patent: 6633290 (2003-10-01), Kung et al.
patent: 6804380 (2004-10-01), Ioannou et al.
patent: 6870608 (2005-03-01), Detweiler et al.
patent: 6898346 (2005-05-01), Mercey et al.
A. Esser et al., “Contactless High Speed Signal Transmission Integrated in a Compact Rotatable Power Transformer,”The European Power Electronics Association(1993), pp. 409-414.
R.D. Lorenz, “Robotics and Automation Applications of Drives and Converters,”Proceedings of the IEEE, vol. 89, No. 6, Jun. 2001, pp. 951-962.
G. Roberts et al., “Design and Evaluation of the Power and Data Contactless Transfer Device,”IEEE(1997), pp. 523-533.
G. Roberts, A Contactless Transfer Device for Power and Data,Proceedings IEEE—Aerospace Applications Conference(1996), pp. 333-345.

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