Data processing: measuring – calibrating – or testing – Calibration or correction system – Position measurement
Reexamination Certificate
2006-09-12
2006-09-12
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Calibration or correction system
Position measurement
C702S085000
Reexamination Certificate
active
07107168
ABSTRACT:
Disclosed herein are apparatus and methods for measuring error associated with the rotation of bearings (50) used within a pointing device (11) on board a space-based platform. The apparatus includes inductive, or “eddy current,” proximity sensors (1000) adapted for measuring the positioning of bearing components. The apparatus also includes processing capabilities (1010) for receiving data from the proximity sensors (1000), and producing compensation data. The compensation data is used in one of various techniques for correcting errors in the angular measurement or pointing of the device (11). The techniques disclosed herein include conducting an initial calibration of the proximity sensors (1000) and generating calibration data. Once in active use, sensor measurements are combined with calibration data to produce compensation data. Ongoing measurements may be used to update the calibration data as necessary.
REFERENCES:
patent: 3681583 (1972-08-01), Kubo et al.
patent: 3830447 (1974-08-01), Phillips
patent: 4894788 (1990-01-01), Stelzer
patent: 4911385 (1990-03-01), Agrawal et al.
patent: 2002-175120 (2002-06-01), None
patent: 2002-244740 (2002-08-01), None
Penn State Machine Dynamics Research Lab, Graduate Student Theses, Jul. 1, 2003, http://www.me.psu.edu/mdrl/pubs.htm.
“Use and Calibration Of Ultraprecision Axes Of Rotation With Nanometer Level Metrology”, Grejda, Robert D., Pennsylvania State University, College of Engineering, Dec. 2002, pp. 1-135.
Gaston Fiona M.
Oystol Lars E.
Paden Brad E.
Nghiem Michael
Raytheon Company
Schubert William C.
Vick Karl A.
Washburn Douglas N
LandOfFree
System for measuring the effect of bearing errors in an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for measuring the effect of bearing errors in an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for measuring the effect of bearing errors in an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3574750