Geometrical instruments – Gauge – With calibration device or gauge for nuclear reactor element
Reexamination Certificate
2005-09-13
2005-09-13
Verbitsky, Gail (Department: 2859)
Geometrical instruments
Gauge
With calibration device or gauge for nuclear reactor element
C033S702000, C374S055000, C374S043000
Reexamination Certificate
active
06941669
ABSTRACT:
A method for determining an “effective” thermal coefficient of a machine comprises the steps of installing one or more temperature sensors (110) at various locations on the machine, positioning a first machine member (60) at a “known” reference location, relative to a second machine member (42), installing a linear position measuring device (120) to detect changes in position of the first machine member (60) relative to the second machine member (42) along a first axis of movement, periodically acquiring readings from each of the temperature sensors (110) and from the linear position measuring device (120) during a test cycle and compiling the temperature and linear position data into a table. A statistical correlation analysis is performed to determine which of the temperature sensors (110) experiencing changes in temperature are most linearly related to changes in the linear position of the first machine member (60) relative to the second machine member (42) and an “effective” coefficient of thermal expansion is thereafter determined as the rate of change of position, i.e. length, relative to change in temperature. The present method includes using the machine's “effective” thermal coefficient the calibrate the motion of the machine to compensate for the thermal characteristics thereof.
REFERENCES:
patent: 4100837 (1978-07-01), Kohler
patent: 4549354 (1985-10-01), Affa et al.
patent: 4728232 (1988-03-01), Babel
patent: 4776098 (1988-10-01), Nelle
patent: 4815213 (1989-03-01), McCabe et al.
patent: 5007006 (1991-04-01), Taylor et al.
patent: 5009512 (1991-04-01), Lessi et al.
patent: 5031331 (1991-07-01), Herzog et al.
patent: 5065526 (1991-11-01), Breyer
patent: 5189807 (1993-03-01), Gustafsson
patent: 5333386 (1994-08-01), Breyer et al.
patent: 5446971 (1995-09-01), Neumann
patent: 5581467 (1996-12-01), Yasuda
patent: 5650852 (1997-07-01), Chastain et al.
patent: 6167634 (2001-01-01), Pahk et al.
patent: 6269284 (2001-07-01), Lau et al.
patent: 2002/0178601 (2002-12-01), Braasch et al.
patent: 2002/0189120 (2002-12-01), Kaneda et al.
patent: 2004/0028114 (2004-02-01), Braasch et al.
patent: 2227563 (1990-08-01), None
Curless Richard
Shivaswamy Satish
Jagan Mirellys
Magus GmbH
Reising Ethington Barnes Kisselle P.C.
Verbitsky Gail
LandOfFree
Method for determining effective coefficient of thermal... 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 for determining effective coefficient of thermal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining effective coefficient of thermal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3432503