Automated tapping process for complex parts used for detecting s

Details Automated tapping process for complex parts used for detecting s Automated tapping process for complex parts used for detecting s

1995-08-08

1996-12-31

Chilcot, Richard

Measuring and testing

Vibration

By mechanical waves

73602, G01N 924

Patent

active

055896359

ABSTRACT:
In order to carry out the automated tapping of complex parts 10, such as helicopter blades, the surface to be inspected is subject to successive shocks using an impacting head 12 displaced in accordance with a given spacing or pitch. The sound produced by these shocks are collected by a microphone 16 associated with an acquisition circuit 18. At least two successive sound signals, which may or may not be consecutive, are compared in order to establish a fault diagnosis. The comparison and diagnosis are carried out by a neuron network or system, after the number of representative points of each sound signal has been reduced during a preprocessing involving a selection stage followed by a smoothing stage.

REFERENCES:
patent: 4475399 (1984-10-01), Livingston
patent: 4881405 (1989-11-01), Paquet
patent: 5309765 (1994-05-01), Horigome et al.
patent: 5331855 (1994-07-01), Takashita et al.
patent: 5383366 (1995-01-01), Wallingford et al.
Windsor, Colin G.; The Classification of Defects From Ultrasonic Measurements; Neutral Networks from Models to Applications; Paris, France 1988; pp. 592-601.
Damarla, T. R. and Zhao, Wei Ning; A Learning Algorithm for a CMAC-based System and its Application for Classification of Ultrasonic Signals; Ultrasonics, vol. 32, No. 2, Mar. 1994; pp. 91-98.

Affiliated with

Also associated with

Rating

Automated tapping process for complex parts used for detecting s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automated tapping process for complex parts used for detecting s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automated tapping process for complex parts used for detecting s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1143271