Title:
ULTRASONIC MEASUREMENT DEVICE AND ULTRASONIC MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2009/104811
Kind Code:
A9
Abstract:
An ultrasonic measurement device comprises a transmitting and receiving means (11, 12) and an aperture synthesis processing means (14). The transmitting and receiving means (11, 12), while allowing a focal point formed by an ultrasonic probe (10) to relatively scan a specimen, transmits an ultrasonic wave toward the specimen and receives a reflected wave from an internal defect of the specimen. The aperture synthesis processing means (14) performs aperture synthesis processing on a signal received at each measurement point using a reference transmission time which is obtained by treating the waveform of the ultrasonic wave transmitting between the ultrasonic probe and the internal defect as an ultrasonic waveform synthesized over the entire surface of a transmission and reception surface.
Inventors:
OZEKI TAKAFUMI (JP)
TAKADA HAJIME (JP)
TAKADA HAJIME (JP)
Application Number:
PCT/JP2009/053480
Publication Date:
February 03, 2011
Filing Date:
February 19, 2009
Export Citation:
Assignee:
JFE STEEL CORP (JP)
OZEKI TAKAFUMI (JP)
TAKADA HAJIME (JP)
OZEKI TAKAFUMI (JP)
TAKADA HAJIME (JP)
International Classes:
G01N29/04
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JP)
Ken-ichiro Ochiai (JP)
Ken-ichiro Ochiai (JP)
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