Automatic flaw detection device

Details Automatic flaw detection device Automatic flaw detection device

1984-04-04

1986-01-07

Birmiel, Howard A.

Measuring and testing

Vibration

By mechanical waves

73633, 73637, 73640, 324228, G01N 2904

Patent

active

045627380

ABSTRACT:
An automatic flaw detection apparatus comprises a supporting frame; a rotational frame supported inside the supporting frame in a freely rotatable manner by means of bearings; a hollow shaft which is supported by and inside the rotational frame, through the interior of which passes a material to be inspected; a holder which is disposed within the hollow shaft extending in the longitudinal direction of the axis of the hollow shaft and rotates in association with the hollow shaft, the a sensor incorporated in the holder to detect any defect in the material to be probed; and a signal transmission device which is placed between the hollow shaft and the rotational frame and comprises a stator section supported by the supporting frame and a rotor section supported by the hollow shaft or the rotational frame to be electrically in association with the stator section, and which transmits flaw detection signal from the sensor to the outside.

REFERENCES:
patent: 3415111 (1968-12-01), Chattaway et al.
patent: 3533281 (1970-10-01), Hetherington
patent: 3561258 (1971-02-01), Ashford
patent: 3854326 (1974-12-01), Hetherington et al.

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