SU398866A1 - METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALS - Google Patents

METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALS

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Publication number
SU398866A1
SU398866A1 SU1731800A SU1731800A SU398866A1 SU 398866 A1 SU398866 A1 SU 398866A1 SU 1731800 A SU1731800 A SU 1731800A SU 1731800 A SU1731800 A SU 1731800A SU 398866 A1 SU398866 A1 SU 398866A1
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SU
USSR - Soviet Union
Prior art keywords
acoustic characteristics
elastic materials
viscous
determining acoustic
determining
Prior art date
Application number
SU1731800A
Other languages
Russian (ru)
Inventor
С. Л. Скалозуб Институт механики полимеров Латвийской ССР К. Г. Кирилов
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Publication date
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Priority to SU1731800A priority Critical patent/SU398866A1/en
Application granted granted Critical
Publication of SU398866A1 publication Critical patent/SU398866A1/en

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Description

1one

Изобретение относитс  к области акустических измерений.This invention relates to the field of acoustic measurements.

Известен способ определени  акустических характеристик (скорости звука и коэффициента затухани  колебаний) в зко-упругих материалов при стационарных вынужденных колебани х испытываемого образца, основанный на измерении амплитуд параметров вибраций и сдвига фаз между ними.A known method for determining acoustic characteristics (sound velocity and attenuation coefficient of oscillations) of visco-elastic materials with stationary forced oscillations of the test specimen, based on measuring the amplitudes of vibration parameters and phase shift between them.

Однако известный способ не обеспечивает достаточной то.чности и надежности измерений .However, the known method does not provide sufficient accuracy and reliability of measurements.

Дл  повышени  точности и надежности измерений по предлагаемому способу измер ют амплитуды деформаций и сдвиг фаз между ними в двух сечени х полуволнового стержн  на известных рассто ни х от его конца при наличии образца и без него и по полученным данным определ ют акустические характеристики материала.To improve the accuracy and reliability of measurements using the proposed method, the amplitudes of deformations and phase shifts between them are measured in two sections of a half-wave rod at known distances from its end with and without a sample and the obtained data determine the acoustic characteristics of the material.

Измерение амплитуд деформаций и сдвига фаз между ними в сечени х полуволновогоMeasurement of the amplitudes of deformations and phase shift between them in the cross sections of half-wave

стержн , с одного конца скрепленного с испытываемым образцом, а с другого - с вибратором , может быть осуществлено, например, посредством наклеивани  на стержень тензорезисторов и известных тензометрических и фазоизмсрительных устройств.A rod from one end bonded to the test specimen, and from the other with a vibrator, can be carried out, for example, by gluing strain gages onto the rod and known strain gauges and phase-measuring devices.

Предмет изобретени Subject invention

Способ определени  акустических характеристик в зко-упругих материалов при стационарных вынужденных колебани х испытываемого образца, основанный на измерении амплитуд параметров вибраций и сдвига фаз между ними, отличающийс  тем, что, с целью повышени  точности измерений, измер ют амплитуды деформаций и сдвиг фаз между ними в двух сечени х полуволнового стержн  на известных рассто ни х от его конца при наличии образца и без него и по полученным данным определ ют акустические характеристики материала.A method for determining the acoustic characteristics of visco-elastic materials with stationary forced vibrations of a test specimen, based on measuring the amplitudes of vibration parameters and phase shift between them, characterized in that, in order to improve the measurement accuracy, the amplitudes of deformations and phase shifts between them in Two sections of a half-wave rod at known distances from its end, with and without a sample and the data obtained, determine the acoustic characteristics of the material.

SU1731800A 1971-12-31 1971-12-31 METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALS SU398866A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1731800A SU398866A1 (en) 1971-12-31 1971-12-31 METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1731800A SU398866A1 (en) 1971-12-31 1971-12-31 METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALS

Publications (1)

Publication Number Publication Date
SU398866A1 true SU398866A1 (en) 1973-09-27

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Application Number Title Priority Date Filing Date
SU1731800A SU398866A1 (en) 1971-12-31 1971-12-31 METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALS

Country Status (1)

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SU (1) SU398866A1 (en)

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