Measuring and testing – Vibration – By mechanical waves
Patent
1992-11-16
1995-05-23
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
367100, 367905, 36472807, 364827, G01N 2910, G06F 1715
Patent
active
054171148
ABSTRACT:
An ultrasonic detecting apparatus which includes a sequence generating means and a transmission signal generating means for generating a transmission signal corresponding to the sequence. The detecting apparatus also includes a transmitting means to transmit waves, which may be ultrasonic waves, to an object and a receiving means for receiving an echo corresponding to the transmission signal. A correlation operation means performs a correlation operation with respect to the echo. In another general aspect, the sequence generating means may generate more than one sequence, some of whose auto-correlation functions produce substantially zero sidelobe in the summed result. In a further general aspect, the sequence generating means generates two or more sequences, with each of the sequences being different from the others and having substantially the same auto-correlation function as the others.
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Koike Mitsuhiro
Misu Koichiro
Nagatsuka Tsutomu
Wadaka Shusou
Finley Rose M.
Mitsubishi Denki & Kabushiki Kaisha
Williams Hezron E.
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