Title:
超音波パルスの走行時間を計算するための方法及びシステム
Document Type and Number:
Japanese Patent JP2007529009
Kind Code:
A
Abstract:
An automated method and system for calculating the transit time of a pulsed signal transmitted from a first ultrasonic transducer to a second ultrasonic transducer is provided. The method includes measuring the amplitude of the pulsed signal received at the second transducer from the first transducer; measuring the amplitude of any noise proximate to the received pulsed signal; and calculating the signal to noise ratio of the received pulsed signal and the noise, respectively. If the signal to noise ratio is above a predetermined threshold, a first technique is automatically implemented for calculating the transit time of the received pulsed signal. If the signal to noise ratio is less than the predetermined threshold, a second different technique is automatically implemented for calculating the transit time of the received pulsed signal.
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Inventors:
Ao, Xiao Lei S
Krakowski, Oleg A.
Jeffrey Dee, Tilden
Krakowski, Oleg A.
Jeffrey Dee, Tilden
Application Number:
JP2007502824A
Publication Date:
October 18, 2007
Filing Date:
February 11, 2005
Export Citation:
Assignee:
Panametrics Incorporated
International Classes:
G01F1/66; G01P5/24
Attorney, Agent or Firm:
Kenichi Matsumoto
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa