Measuring and testing – Vibration – By mechanical waves
Patent
1990-10-11
1991-11-19
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
73625, 73642, 36472807, 364821, 367100, 367905, G01N 2922, G06F 15336
Patent
active
050656295
ABSTRACT:
An ultrasonic flaw inspecting apparatus is provided in which the transmission signals comprising N number of the binary code sequences having sharp autocorrelation functions are input to an object to be inspected by a single transducer for transmission and the reflected signals are received by N number of transducers for reception. The N number of transducers for reception are connected and placed over each other so that the direction of respective polarization is inverted in terms of the time order of the binary code of the sequence.
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patent: 4245326 (1981-01-01), Gutleber
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Koike Mitsuhiro
Wadaka Shusou
Finley Rose M.
Mitsubishi Denki & Kabushiki Kaisha
Williams Hezron E.
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