Method for testing the condition of a drive shaft of a...

Details Method for testing the condition of a drive shaft of a... Method for testing the condition of a drive shaft of a...

2006-05-31

2010-06-15

Saint Surin, J M (Department: 2856)

Measuring and testing

Vibration

Sensing apparatus

C073S593000, C073S596000, C073S633000, C073S649000

Reexamination Certificate

active

07735370

ABSTRACT:
A method for non-destructive testing of a drive shaft that is accessible by only one of its ends in longitudinal waves, using a multi-element annular ultrasonic transducer. Such a transducer consists of independent elements that can be excited by electrical pulses of the same frequency, but for which different electronic phase shifts will be applied, in the invention, to the pulses transmitted to the elements. Such an electronic phase shift allows the focussing or deflection of a final beam synthesized by all the elements constituting the transducer, the said final beam being concentrated to adopt a generally cylindrical shape with a cross-section that is far smaller than the cross-section of the shaft to be tested and is highly energetic over a long distance due to the waveguide effect created by the cylindrical geometry of the shaft.

REFERENCES:
patent: 4462255 (1984-07-01), Guess et al.
patent: 4497210 (1985-02-01), Uchida et al.
patent: 4677981 (1987-07-01), Coursant
patent: 5113697 (1992-05-01), Schlawne
patent: 5431053 (1995-07-01), Fink
patent: 5670779 (1997-09-01), Bell
patent: 5932807 (1999-08-01), Mallart
patent: 6144483 (2000-11-01), Allen et al.
patent: 6749569 (2004-06-01), Pellegretti
patent: 6996480 (2006-02-01), Giurgiutiu et al.
patent: 7428842 (2008-09-01), Fair et al.
patent: 7429352 (2008-09-01), Bisiaux et al.
patent: 2002/0113974 (2002-08-01), Clark
patent: 2004 340809 (2004-12-01), None

Affiliated with

Also associated with

Rating

Method for testing the condition of a drive shaft of a... 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 testing the condition of a drive shaft of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for testing the condition of a drive shaft of a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4199684