Boots – shoes – and leggings
Patent
1987-04-07
1990-07-17
Teska, Kevin J.
Boots, shoes, and leggings
324 77R, 364484, 367 13, G01D 1800, G01R 2300
Patent
active
049426141
ABSTRACT:
An ultrasonic test set is calibrated in terms of its frequency characterization by establishing a response trace on a monitor screen of the test set when the probe of the test set is applied to a standard test article, a digitizing camera is arranged for scanning the trace on the test set monitor, and a digital computer receives the digital output signal on the digitizing camera and processes the signal by sampling the signal trace at discrete points with respect to time; the digital computer provides an output on output means such as a monitor screen and/or printer which provides information on the frequency characterization of the ultrasonic test device and includes a frequency spectrum. The apparatus can be implemented by a combination of commercially available and known separate elements providing a cheap and effective apparatus and method for calibration purposes.
REFERENCES:
patent: 4607216 (1986-08-01), Yamaguchi et al.
patent: 4641348 (1987-02-01), Neuder et al.
patent: 4649496 (1987-03-01), Anderson et al.
patent: 4665494 (1987-05-01), Tanaka et al.
patent: 4669052 (1987-05-01), Bianco
patent: 4685065 (1987-08-01), Braun et al.
patent: 4686457 (1987-08-01), Banno
patent: 4736250 (1988-04-01), Blazo
patent: 4748598 (1988-05-01), Kopke
Australian Atomic Energy Commission
Teska Kevin J.
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