Glass bottle inspection

Details Glass bottle inspection Glass bottle inspection

1984-08-30

1987-03-24

Tokar, Michael J.

Measuring and testing

Vibration

By mechanical waves

73622, 73644, G01N 2904

Patent

active

046515682

ABSTRACT:
In glass bottle inspection, a pulse of acoustic wave is injected into a portion of the glass bottle forming a closed path for the propagation of the acoustic wave pulse so that the injected acoustic wave pulse travels round the closed plath, and acoustic wave pulse is detected while it is travelling round the closed path. Whether there is a defect along the closed path is judged in accordance with the magnitude of the detected acoustic wave pulse.

REFERENCES:
patent: 2795133 (1957-06-01), Ots
patent: 3375706 (1968-04-01), Pandelis et al.
patent: 4065960 (1978-01-01), Grabendorfer et al.
patent: 4217782 (1980-08-01), Pont
J. Krauthramer et al., Ultrasonic Testing of Materials, Springer-Verlag, N.Y., 1983, pp. 332-337 and 439-443.

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