Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position
Reexamination Certificate
2006-07-26
2008-05-13
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Orientation or position
C324S633000
Reexamination Certificate
active
07373272
ABSTRACT:
A position sensing system uses a resonant transmission line having a moveable dielectric as a position sensor. The system includes circuitry that supplies an RF drive signal to the resonant transmission line, which reflects the drive signal. Based on a standing wave signal, which is generated from the drive signal and the reflected drive signal, the circuitry determines the frequency of the RF sensor drive signal relative to a resonant frequency of the resonant transmission line, and adjusts the RF sensor drive signal frequency to match a resonant frequency of the transmission line. The system additionally includes integral circuitry that senses the temperature of the resonant transmission line and supplies a temperature signal representative thereof. The circuitry determines the relative position of the moveable dielectric based on the adjusted RF sensor drive signal frequency, and supplies a temperature compensated position signal representative thereof.
REFERENCES:
patent: 3389332 (1968-06-01), Ketcham
patent: 3566869 (1971-03-01), Crowson
patent: 4135132 (1979-01-01), Tafjord
patent: 4208640 (1980-06-01), van der Meijs
patent: 4507546 (1985-03-01), Fortune et al.
patent: 4704573 (1987-11-01), Turner, Jr.
patent: 4733798 (1988-03-01), Brady et al.
patent: 4780661 (1988-10-01), Bolomey et al.
patent: 4795886 (1989-01-01), Carter, Jr.
patent: 5103181 (1992-04-01), Gaisford et al.
patent: 5332981 (1994-07-01), Mazzochette et al.
patent: 5352868 (1994-10-01), Denen et al.
patent: 5609059 (1997-03-01), McEwan
patent: 5659253 (1997-08-01), Busking
patent: 5742202 (1998-04-01), Vogt
patent: 5772153 (1998-06-01), Abaunza et al.
patent: 6225812 (2001-05-01), Mays et al.
patent: 6361207 (2002-03-01), Ferguson
patent: 6505509 (2003-01-01), Gualtieri
patent: 7092840 (2006-08-01), Gualtieri
Barlow John
Cherry Stephen J.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
LandOfFree
Temperature compensated resonant transmission line sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature compensated resonant transmission line sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature compensated resonant transmission line sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3987683