Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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Filing date
Publication date
Application filed by Matsushita Electric Industrial Co LtdfiledCriticalMatsushita Electric Industrial Co Ltd
Priority to JP50060712ApriorityCriticalpatent/JPS5846704B2/en
Publication of JPS51135688ApublicationCriticalpatent/JPS51135688A/en
Publication of JPS5846704B2publicationCriticalpatent/JPS5846704B2/en
Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves
(AREA)
Abstract
PURPOSE: To provide an apparatus for testing a living body and other specimens by making use of changes in reflectance and transmittance of an ultrasonic wave irradiated, wherein a ultrasonic wave generated by plural numbers of pulse-modulated frequency signals are irradiated onto the specimen to be tested whereby the sensitivity and the resolution are improved without raising the pulse number.
Nondestructive ultrasonic sheet fault testing - uses sensitive pulsed echo and transmission probes located on both sides of specimen giving optimised test range