Title: Digital log amplifier for ultrasonic testing
Application Number: 200610172860 Application Date: 2006.11.06
Publication Number: 1975410 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01N29/36;G01N29/00;H03F3/00;G06G7/24
Applicant(s) Name: GE Inspection Technologies LP Address:
Inventor(s) Name: Cuffe John M.;Busch Klaus-Peter;Herbster Scott A.
Attorney & Agent: lijing lan wangyong
Abstract:
    The apparatus and method of the present invention provides a plurality of linear amplifiers simultaneously processing an ultrasonic signal. Each amplifier of the plurality of linear amplifiers has a predetermined gain level suitable for achieving the desired output signal level for input to an analog to digital (A/D) converter for processing. The output of each amplifier is sampled by each respective A/D converter at a very high frequency to convert the analog signal output of each of the linear amplifiers to a digital signal. Logic circuits simultaneously monitor all of the output digital signals from the A/D converters.
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