Method and program for estimating uncertainty

Details Method and program for estimating uncertainty Method and program for estimating uncertainty

2007-05-29

2007-05-29

Wachsman, Hal (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Statistical measurement

C702S180000, C702S181000, C702S182000, C702S183000, C702S184000, C702S185000, C702S186000, C702S187000, C702S188000, C702S189000, C702S196000

Reexamination Certificate

active

11325135

ABSTRACT:
Measured values obtained in a measuring machine to be estimated are provided to estimate errors in the measured values. Based on the estimated errors in the measured values, a covariance matrix or correlation matrix of measured values is derived. The covariance matrix or correlation matrix is then subjected to eigenvalue decomposition to derive eigenvalues and eigenvectors. A normal random number with an expected value of 0 and a variance equal to an eigenvalue corresponding to the eigenvalue is generated as a coefficient of coupling for each eigenvector, and all eigenvectors are linearly coupled to generate pseudo-measured values of the measuring machine. The generated pseudo-measured values are subjected to statistic processing to estimate uncertainty of the measuring machine.

REFERENCES:
patent: 6829568 (2004-12-01), Julier et al.
patent: 198 46 597 (1999-04-01), None
“Traceability of Coordinate Measurements According to the Method of the Virtual Measuring Machine”, Part 2 of the Final Report Project MATI-CT94-0076, E. Trapet et al., PTB-F-35, Braunschweig, Mar. 1999.
“Reliability on calibration of CMM”, Abbe M et al., Measurement, Institute of Measurement and Control, London, GB, vol. 33, No. 4, Jun. 2003, pp. 359-368, XP004423860, ISSN: 0263-2241.
“Statistical verification of conformance to geometric tolerance”, Kurfess T R et al, Computer Aided Design, Elsevier Publishers BV., Barking, GB, vol. 27, No. 5, May 1995, pp. 353-361, XP004022789, ISSN: 00010-4485.

Affiliated with

Also associated with

Rating

Method and program for estimating uncertainty does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and program for estimating uncertainty, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and program for estimating uncertainty will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3789435