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公开(公告)号：US20180266860A1
公开(公告)日：2018-09-20
申请号：US15987129
申请日：2018-05-23
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： R Venkata Ramanan , Anand Dabak , Amardeep Sathyanarayana
CPC classification number: G01F1/667 , G01F25/0007
Abstract: A method, system and apparatus is disclosed for auto-tuning a circuit associated with an upstream transducer (UPT) and a circuit associated with a downstream transducer (DNT) for reciprocal operation in an ultrasonic flowmeter. The method includes exchanging signals between the upstream transducer and the downstream transducer; comparing at least one of respective maximum amplitudes of an upstream signal and a downstream signal and respective center frequencies of a Fast Fourier Transform (FFT) of the upstream signal and the downstream signal; and responsive to determining that at least one of the respective maximum amplitudes and the respective center frequencies do not match, correcting the mismatch.
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公开(公告)号：US10006791B2
公开(公告)日：2018-06-26
申请号：US14862832
申请日：2015-09-23
Applicant: Texas Instruments Incorporated
Inventor： R Venkata Ramanan , Anand Dabak , Amardeep Sathyanarayana
CPC classification number: G01F1/667 , G01F25/0007
Abstract: A method, system and apparatus is disclosed for auto-tuning a circuit associated with an upstream transducer (UPT) and a circuit associated with a downstream transducer (DNT) for reciprocal operation in an ultrasonic flowmeter. The method includes exchanging signals between the upstream transducer and the downstream transducer; comparing at least one of respective maximum amplitudes of an upstream signal and a downstream signal and respective center frequencies of a Fast Fourier Transform (FFT) of the upstream signal and the downstream signal; and responsive to determining that at least one of the respective maximum amplitudes and the respective center frequencies do not match, correcting the mismatch.
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