SU538285A1 - Device for measuring Poisson's ratio - Google Patents
Device for measuring Poisson's ratioInfo
- Publication number
- SU538285A1 SU538285A1 SU2075047A SU2075047A SU538285A1 SU 538285 A1 SU538285 A1 SU 538285A1 SU 2075047 A SU2075047 A SU 2075047A SU 2075047 A SU2075047 A SU 2075047A SU 538285 A1 SU538285 A1 SU 538285A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sample
- deformation
- oscillations
- poisson
- ratio
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ КОЭФФИЦИЕНТА ПУАССОНА(54) DEVICE FOR MEASURING POISSON COEFFICIENT
Изобретение относитс к измерител м упругих характеристик твердых сред и может быть использовано в приборостроигель ной .и других област х промышленности.The invention relates to gauges for the elastic characteristics of solid media and can be used in instrument-based equipment and other industrial fields.
Дл определени динамического коэффициента Пуассона измер ют скорости распространени механических колебаний двух типов например, продольных и поперечных, и по известным аналитическим зависимост м, св зывающим упругие посто нные с отношукием измеренных скоростей, определ ют значение коэффициента Пуассона 2, 3.To determine the Poisson dynamic coefficient, the propagation velocities of two types of mechanical oscillations, for example, longitudinal and transverse, are measured, and the value of Poisson’s ratio 2, 3 is determined from known analytical dependencies connecting elastic constants with the ratio of the measured velocities.
Наиболее известно устройство дл измерени коэффициента Пуассона 1, содержащее возбуждающий генератор, акустические излучатели двух типов колебаний, продольгных и поперечных, датчик ортогональных векторов деформации поверхности образца, измерител временных интервалов и индикатора .The most well-known device for measuring Poisson’s ratio is 1, which contains an excitation generator, acoustic emitters of two types of oscillations, longitudinal and transverse, a sensor of orthogonal vectors of deformation of the sample surface, a time interval meter and an indicator.
Однако в таком устройстве невозможно автоматизировать процесс измерени в св зи с трудоемкостью вычислительных операций , кроме того, требуетс сквозное прозву- чивание образцов,However, in such a device it is impossible to automate the measurement process due to the laboriousness of the computational operations, in addition, the through sounding of samples is required
С целью возможности измерени при оргностороннем доступе к образцу и автоматизации измерени в предлагаемом устройств ве используетс акустический излучатель поверхностньк волн, а датчик ортогональных векторов деформации поверхности образца подключен к измерителю отношени амплитуд.In order to measure with orbital access to a sample and automate measurements, the proposed device uses an acoustic emitter of surface waves, and a sensor of orthogonal vectors of sample surface deformation is connected to an amplitude ratio meter.
На чертеже изображена блок-схема предложенного устройства.The drawing shows a block diagram of the proposed device.
Устройство содержит электроакустически последовательно соединенные генератор 1, преобразователь электрических колебаний в поверхностные колебани 2, исследуемый образец 3, датчик ортогональных векторов деформации поверхности образца 4 и изм&ритель отношени амплитуд 5,The device contains an electro-acoustically connected generator 1, a converter of electrical oscillations into surface oscillations 2, sample under study 3, a sensor of orthogonal vectors of deformation of the surface of sample 4, and an amplitude ratio measurement 5,
Устройство работает следующим образом.The device works as follows.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2075047A SU538285A1 (en) | 1974-10-29 | 1974-10-29 | Device for measuring Poisson's ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2075047A SU538285A1 (en) | 1974-10-29 | 1974-10-29 | Device for measuring Poisson's ratio |
Publications (1)
Publication Number | Publication Date |
---|---|
SU538285A1 true SU538285A1 (en) | 1976-12-05 |
Family
ID=20600725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2075047A SU538285A1 (en) | 1974-10-29 | 1974-10-29 | Device for measuring Poisson's ratio |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU538285A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4338820A (en) * | 1980-09-25 | 1982-07-13 | Ramot University Authority For Applied Research & Industrial Development | Method and apparatus for generating and detecting acoustic surface waves particularly useful in the non-destructive testing of materials |
-
1974
- 1974-10-29 SU SU2075047A patent/SU538285A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4338820A (en) * | 1980-09-25 | 1982-07-13 | Ramot University Authority For Applied Research & Industrial Development | Method and apparatus for generating and detecting acoustic surface waves particularly useful in the non-destructive testing of materials |
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