Boots – shoes – and leggings
Patent
1982-08-11
1985-09-10
Krass, Errol A.
Boots, shoes, and leggings
73620, 73637, 73638, G06F 1520, G01N 2904
Patent
active
045410640
ABSTRACT:
A method for ultrasonic flaw inspection of non-rotating tubular goods using microprocessor central control. The system includes a test head with circumferential arrays of transducers oriented for inspection for each of transverse, longitudinal and wall thickness defects, and the test head includes individual pulser and pre-amplifier arrays as sequentially controlled from a remotely disposed operator console. The console includes signal processing circuitry and sequence controller for developing and displaying defect indications for the test specimen as it is moved longitudinally through the test head. The sequence controller contains resident program for addressably controlling the operational sequence of selected transducer pulsing, return signal reception, gate discrimination, and flaw signal averaging to provide qualified flaw output indication for each of the transverse, longitudinal and wall thickness testing modes.
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Herndon Heather R.
Hessin Robert M.
Krass Errol A.
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