Method of and apparatus for storing data signals

Details Method of and apparatus for storing data signals Method of and apparatus for storing data signals

G - Physics

01

N

352/18, 349/42

G01N 29/04 (2006.01) G01N 29/06 (2006.01)

Patent

CA 1143047

TITLE Method of and apparatus for non-destructive testing. Abstract of the Disclosure A method of non-destructive testing wherein ultrasonic signals from a transducer are converted into television wave form and stored on video recording magnetic tape for reproduction as required. Because the signals are recorded live rather than in the form of a cathode ray oscilloscope display they can be rectified as necessary. Positional co-ordinates of the transducer may be stored so that B-scans at vary- ing thresholds can be reproduced. Position and ultrasonic signals are interleaved on the video recording magnetic tape. Apparatus for performing the method includes a video recording device having a rotatable head and interface units for converting the radio frequency signals into television wave form and for decoding the signals for reproduction.

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