Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Reexamination Certificate
2004-10-29
2008-09-23
Williams, Hezron E. (Department: 2856)
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
Reexamination Certificate
active
07426859
ABSTRACT:
A motion sensor may detect linear and/or angular acceleration and/or angular velocity of a body relative to one axis, two orthogonal axes or three orthogonal axes. Movement of the body or reference structure may be detected relative to one or more spinning rotors. The rotor(s) may be suspended for rotation and/or other movement relative to the reference structure without physical contacting the reference structure. In one embodiment, the rotor(s) may be electrostatically suspended in such a way that movement of the rotor(s) relative to the reference structure may be detected.
REFERENCES:
patent: 1368037 (1921-02-01), Thomas
patent: 3548507 (1970-12-01), Mueller
patent: 6443008 (2002-09-01), Funk et al.
patent: 6668648 (2003-12-01), Karasawa et al.
patent: 6788220 (2004-09-01), Netzer
patent: 6856067 (2005-02-01), Frey et al.
patent: 2004/0163471 (2004-08-01), Frey et al.
patent: 2004/0252032 (2004-12-01), Netzer
patent: 2005/0241394 (2005-11-01), Clark
patent: WO96/31941 (2006-10-01), None
Frechette, et al., An Electrostatic Induction Micromotor Supported on Gas-lubricated Bearings, IEEE 1414, International Micro Electro Mech. Systems Conf. , MEMS, pp. 1-4, 2001.
Fax, The Electrostatically Suspended Gyroscope as Accelerometer: Modeling, Evaluation and Experiment, Engineering and Applied Science, California Institute of Technology, Jun. 12, 1998.
Gindila et al., Electro Interface design for an electrically floating micro-disc, J. Micromech. Microeng. 13, pp. S11-S16, 2003.
Houlihan et al., Modelling of an accelerometer based on a levitated proof mass, J. Micromech. Microeng., 12, pp. 1-8, 2002.
Kraft, Micromachined Inertial Sensors State of the Art and a Look into the Future, IMC Measurement and Control, vol. 33, No. 6, pp. 164-168, 2000.
Kraft, et al., Modeling and Design of an Electrostatically Levitated Disk for Inertial Sensing Applications, Proc. Conf. on Micromechanics Europe, Paper C12, Stockholm, 2000.
Warnasch et al., Low Cost, High Accuracy, Micro Electro-Mechanical Systems (MEMS), Intertial Measurements Unit (IMU) Program, IEEE Plans, Position Location and Navigation Symposium, pp. 299-302, 2002.
International Search Report and Written Opinion PCT/US2005/039416 dated Jan. 9, 2007.
Greene Michael E.
Trent Victor S.
Archangel Systems, Inc.
Bellamy Tamiko D
Williams Hezron E.
Wolf Greenfield & Sacks P.C.
LandOfFree
Motion sensor and method for detecting motion does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motion sensor and method for detecting motion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion sensor and method for detecting motion will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3990369