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2 477 493

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(51)

IPC

G01R27/26(2006-01-01)

(21) (22)

Application

2010111179/28, 2010-03-24

(24)

Start date

2010-03-24

(22)

Actual filing date

2010-03-24

(45)

Published

2013-03-10

(72)

Inventor

Mansfel'D Georgij DmitrievichAlekseev Sergej GeorgievichPolzikova Natal'Ja Ivanovna

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Radiotekhniki I Ehlektroniki Im. V.A. Kotel'Nikova RanFederal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Fiziko-Tekhnicheskij Institut Universitet)"

MEASURING METHOD OF ATTENUATION FACTOR OF ACOUSTIC WAVES IN RESONANCE STRUCTURE AND ITS QUALITY Russian patent published in 2013 - IPC G01R27/26

Abstract RU 2477493 C2

FIELD: measurement equipment.

SUBSTANCE: measuring method of attenuation factor of acoustic waves in resonance structure and its quality is based on measurement of frequency dependence of impedance of resonance structure. Frequency dependence of imaginary part of electric impedance of the structure is measured for the chosen number of obertone. Positions of extreme values are fixed on the measured dependence. Difference between frequencies of extreme values Δf_n(Imz) is calculated. Then, value of attenuation factor α_nand quality factor Q_nis calculated at frequency f_n of obertone with n number.

EFFECT: higher measurement accuracy of attenuation factor of acoustic waves in resonance structure and its quality.

4 dwg

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RU 2 477 493 C2

Authors

Mansfel'D Georgij Dmitrievich

Alekseev Sergej Georgievich

Polzikova Natal'Ja Ivanovna

Dates

2013-03-10—Published

2010-03-24—Filed