SU398866A1 - METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALS - Google Patents
METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALSInfo
- 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
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acoustic characteristics
- elastic materials
- viscous
- determining acoustic
- determining
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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.
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 |
Family
ID=20498315
Family Applications (1)
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)
Country | Link |
---|---|
SU (1) | SU398866A1 (en) |
-
1971
- 1971-12-31 SU SU1731800A patent/SU398866A1/en active
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