COMPLEX MULTI-FREQUENCY ULTRASONIC PHASED ARRAY IMAGING DEVICE

Title:

COMPLEX MULTI-FREQUENCY ULTRASONIC PHASED ARRAY IMAGING DEVICE

Document Type and Number:

WIPO Patent Application WO/2019/117448

Kind Code:

A1

Abstract:

The present invention relates to a complex multi-frequency ultrasonic phased array imaging device comprising: a transducer, which transmits a phased array ultrasonic signal to an object to be examined, receives an ultrasonic signal reflected from the object to be examined, and includes at least one first piezoelectric element having a high resonance frequency and second piezoelectric element having a resonance frequency lower than that of the first piezoelectric element; a control unit for controlling operations of the first piezoelectric element and the second piezoelectric element by applying an operation signal to the transducer; and a portable imaging unit, which calculates an operation signal applied from the control unit and an ultrasonic signal received in the transducer as a delay-sum for a phased array image, thereby outputting the same as a phased array image.

Inventors:

PARK CHOON-SU (KR)
HONG SAE WON (KR)
LEE YOUNG HO (KR)

Application Number:

PCT/KR2018/012307

Publication Date:

June 20, 2019

Filing Date:

October 18, 2018

Export Citation:

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Assignee:

KOREA RES INST STANDARDS & SCI (KR)

International Classes:

G01N29/24; G01N29/06; G01N29/34

Foreign References:

KR20110003057A	2011-01-11
JP2015226762A	2015-12-17
JP2009281805A	2009-12-03
KR20120122440A	2012-11-07
KR20120083922A	2012-07-26

Other References: