Inspection apparatus

Details Inspection apparatus Inspection apparatus

1986-08-27

1987-12-29

Levy, Stewart J.

Measuring and testing

Vibration

By mechanical waves

73583, G01N 2904

Patent

active

047152281

ABSTRACT:
It is common practice to pass an ultrasonic probe over a workpiece so as to enable examining of the material for faults such as flaws within the material thickness. Known apparatus for achieving this has a drawback in that the probe supporting structure is such that the probe oscillates about some point within its length, as the structure passes over curved or undulating surfaces. Control over the position of the focal point is thus lost. The invention involves ensuring that the pivot point of the probe coincides with its focal point which in turn enables control of the position of the focal point to be maintained.

REFERENCES:
patent: 3824843 (1974-07-01), Gebeshuber et al.

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