Thermal measuring and testing – Leak or flaw detection – With heating or cooling of specimen for test
Patent
1992-08-14
1993-08-31
Yasich, Daniel M.
Thermal measuring and testing
Leak or flaw detection
With heating or cooling of specimen for test
250330, 374169, G01N 2100, G01N 2572
Patent
active
052403297
ABSTRACT:
A method for detecting defects (10) in a workpiece (12) non-destructively, comprising subjecting the workpiece (12) to a temperature difference in relation to ambient temperature. The method provides an infrared radiometric scanner (14) having a field of view (16) which includes the workpiece (12) being tested, the radiometric scanner (14) sensing an emitted temperature pattern representative of the internal structure (10) of the workpiece (12). The method for detecting defects (10) also communicates a controller (18) with the radiometric scanner (14), the controller (18) receiving an output signal (22) from the radiometric scanner (14) indicative of the emitted temperature pattern before the workpiece (12) is allowed to achieve thermal equilibrium with the ambient environment. The monitor is connected with the controller (18), the monitor being responsive to the output signal (22), whereby the monitor depicts the surface and inner structure of the workpiece so that the workpiece is evaluated for defects (10) in a non-contacting manner.
REFERENCES:
patent: Re32166 (1986-06-01), Berge
patent: 3499153 (1970-03-01), Stanfill, III
patent: 4636091 (1987-01-01), Pompei et al.
patent: 4671674 (1987-06-01), Detronde
patent: 4768158 (1988-08-01), Osanai
patent: 4840496 (1989-06-01), Elleman et al.
patent: 4854162 (1989-08-01), Yerace et al.
patent: 4886370 (1989-12-01), Koshihara et al.
patent: 4965451 (1990-10-01), Solter
patent: 4967382 (1990-10-01), Hall
patent: 4988210 (1991-01-01), Koshihara et al.
patent: 5032727 (1991-07-01), Cox, Jr. et al.
patent: 5052816 (1991-10-01), Nakamura et al.
Ford Motor Company
Malleck Joseph W.
May Roger L.
Yasich Daniel M.
LandOfFree
Non-destructive method for detecting defects in a workpiece does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-destructive method for detecting defects in a workpiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-destructive method for detecting defects in a workpiece will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2293926