ULTRASONIC DOPPLER RHEOMETER - MATSUSHITA ELECTRIC IND CO LTD

Title:

ULTRASONIC DOPPLER RHEOMETER

Document Type and Number:

WIPO Patent Application WO/2006/088094

Kind Code:

A1

Abstract:

In order to suppress the transient phenomenon of a wall filter, an ultrasonic Doppler rheometer uses a clutter component estimation unit (110) for estimating an amplitude, an initial phase, a phase speed of a clutter component from a detection output by a phase detection unit (104). According to the estimated data, an initialization value of the wall filter (105) is generated by a filter initial value generation unit (11), and the value is given to the wall filter (105) to perform filter processing.

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Inventors:

NISHIGAKI MORIO
HAGIWARA HISASHI
FUKUMOTO TAKENORI

Application Number:

PCT/JP2006/302734

Publication Date:

August 24, 2006

Filing Date:

February 16, 2006

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
NISHIGAKI MORIO
HAGIWARA HISASHI
FUKUMOTO TAKENORI

International Classes:

A61B8/06

Foreign References:

JPH04336055A	1992-11-24
JP2003250802A	2003-09-09
JP2002143162A	2002-05-21
JPH0515535A	1993-01-26

Attorney, Agent or Firm:

Kawamiya, Osamu (IMP Building 3-7, Shiromi 1-chome, Chuo-ku, Osaka-sh, Osaka 01, JP)

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