The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 12, 1998

Filed:

Oct. 31, 1996
Applicant:
Inventors:

Zhongxue Gan, Storrs, CT (US);

Lance Terrance Fitzgibbons, Southwick, MA (US);

Qing Tang, Wethersfield, CT (US);

Jeffrey Sherman Katz, West Hartford, CT (US);

Assignee:

Combustion Engineering, Inc., Windsor, CT (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
36457103 ; 364170 ; 901-9 ; 901 23 ; 738665 ; 324220 ; 31856811 ;
Abstract

The work cell is divided into a plurality of calibration zones, and calibration is made with only one measured point in each zone. The calibration zones are set up such that the calibration error in each zone remains within an acceptable tolerance. Within each zone, calibration is preferably made according to a linear calibration algorithm. The method according to the invention includes the steps of storing a first database, of the coordinates of all the tube openings in the tube sheet coordinate system. Each coordinate of the first database is assigned to one of a plurality of calibration zones.


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