Measuring and testing – Vibration – By mechanical waves
Patent
1980-09-29
1983-02-15
Cohen, Lee S.
Measuring and testing
Vibration
By mechanical waves
73625, 128660, G01N 2900
Patent
active
043733956
ABSTRACT:
In the exemplary disclosure, the apparatus includes electronic delay circuitry for delaying echo signals produced in use by a multiplicity of transducers of the apparatus such that the phase relationship between respective echo signals is substantially maintained. The circuitry comprises a multiplicity of partial-line stores, each partial-line store being adapted for storing data corresponding to a part of an ultrasonic scanning line, associated in groups of at least three with respective ones of the transducers and control circuitry arranged such that, in use, data corresponding to echo signals (E(t)) is sequentially written in to the partial-line stores of the group (I, II, III) for each of the transducers, beginning with the first such transducer to receive an echo signal, until at least the first partial-line store (I) of the group (I, II, III) for the last such transducer to receive an echo signals has been supplied with data, after which, data can be simultaneously read out from all of the partial-line stores.
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(Author Anon.), "Real Time UTS Diagnostic System For Simultaneous Image Displays", JEE Oct. 1979, pp. 66-69, vol. 16, #154.
Ito, K. et al., A New Real-Time UTS Diag. System for Dynamic & Still Images", JEE Japan No. 144, Dec. 1978. pp. 59-64.
Ophir, J. et al., "Digital Scan Converters in UTS Imaging", IEEE Proc., vol. 67, No. 4. Apr. 1979, pp. 654-664.
Borburgh Jacques
Naefe Gerhard
Rost Helmut
Cohen Lee S.
Jaworski Francis J.
Siemens Aktiengesellschaft
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