Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Reexamination Certificate
2006-07-11
2006-07-11
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
C324S244000, C324S260000
Reexamination Certificate
active
07075295
ABSTRACT:
A magnetic field response sensor comprises an inductor placed at a fixed separation distance from a conductive surface to address the low RF transmissivity of conductive surfaces. The minimum distance for separation is determined by the sensor response. The inductor should be separated from the conductive surface so that the response amplitude exceeds noise level by a recommended 10 dB. An embodiment for closed cavity measurements comprises a capacitor internal to said cavity and an inductor mounted external to the cavity and at a fixed distance from the cavity's wall. An additional embodiment includes a closed cavity configuration wherein multiple sensors and corresponding antenna are positioned inside the cavity, with the antenna and inductors maintained at a fixed distance from the cavity's wall.
REFERENCES:
patent: 4482859 (1984-11-01), Fournier
patent: 4490773 (1984-12-01), Moffatt
patent: 4594640 (1986-06-01), Tatsumi
patent: 5075600 (1991-12-01), El-Hamamsy et al.
patent: 5420757 (1995-05-01), Eberhardt et al.
patent: 5423334 (1995-06-01), Jordan
patent: 6025735 (2000-02-01), Gardner et al.
patent: 6111520 (2000-08-01), Allen et al.
patent: 6278379 (2001-08-01), Allen et al.
patent: 6335690 (2002-01-01), Konchin et al.
patent: 6463798 (2002-10-01), Niekerk et al.
patent: 6532834 (2003-03-01), Pinto et al.
patent: 6815958 (2004-11-01), Kesil et al.
patent: 2001/0001311 (2001-05-01), Park et al.
patent: 2004/0057589 (2004-03-01), Pedersen et al.
patent: 2005/0028601 (2005-02-01), Pedersen et al.
John C. Butler, Anthony J. Vigliotti, Fred W. Verdi, & Shawn M. Walsh, “Wireless, passive, resonant-circuit, inductively coupled, inductive strain sensor,” Elsevier, Elsevier Science B.V., p. 63-66.
K.G. Ong, C.A. Grimes, C.L. Robbins, & R.S. Singh, “Design and application of a wireless, passive, resonant-circuit environmental monitoring sensor,” Elsevier, Elsevier Science B.V., p. 33-43.
Keat Ghee Ong & Craig A. Grimes, “A resonant printed-circuit sensor for remote query monitoring of environmental parameters,” Smart Materials Strut. 9 (2000), p. 421-428.
Taylor Bryant D.
Woodard Stanley E.
Edwards Robin W.
LeDynh Bot
The United States of America as represented by the Administrator
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