SU80278A1 - Device for determining the modulus of elasticity of a material by the speed of sound propagation in it - Google Patents

Device for determining the modulus of elasticity of a material by the speed of sound propagation in it

Info

Publication number
SU80278A1
SU80278A1 SU392310A SU392310A SU80278A1 SU 80278 A1 SU80278 A1 SU 80278A1 SU 392310 A SU392310 A SU 392310A SU 392310 A SU392310 A SU 392310A SU 80278 A1 SU80278 A1 SU 80278A1
Authority
SU
USSR - Soviet Union
Prior art keywords
sound
speed
modulus
elasticity
determining
Prior art date
Application number
SU392310A
Other languages
Russian (ru)
Inventor
В.П. Миронов
Б.А. Поснов
Original Assignee
В.П. Миронов
Б.А. Поснов
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by В.П. Миронов, Б.А. Поснов filed Critical В.П. Миронов
Priority to SU392310A priority Critical patent/SU80278A1/en
Application granted granted Critical
Publication of SU80278A1 publication Critical patent/SU80278A1/en

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Description

УСТРОЙСТВО дл  ОПРЕДЕЛЕНИЯ ЛЮДУЛЯ УПРУГОСТИ МАТЕРИАЛА ПО СКОРОСТИ РАСПРОСТРАНЕНИЯ В НЕМ ЗВУКАDEVICE FOR DETERMINING LUDUL OF ELASTICITY OF MATERIAL BY SPEED SPEED IN SOUND

За влено 19 феврал  1949 г. за ЛЬ 392310 в Ко:чптет по изобретени м и открыти м при CuBori. Министров СССР.19 February 1949 for LI 392310 in Ko: a list of inventions and discoveries with CuBori. USSR ministers.

Предлагаетс  устройство дл  определени  модул  уирх гости материалов , основанное на  влении интерференции звуковых волн в иснытуемом материале и стандартной среде.A device is proposed for determining the modulus of the guest-material of materials based on the phenomenon of interference of sound waves in the material under test and in a standard medium.

Известны акустические способы и уст)оГ1Ства дл  определени  модул  упругости в материалах, основанные ка оиределении скорости прохождени  звука в материалах иепосредственным измерением промежутков времени, в течение которых звуковой нмпульс пробегает в исследуемом материале.Acoustic methods and devices for determining the modulus of elasticity in materials are known, based on the determination of the speed of sound in materials and the direct measurement of the time intervals during which the sound pulse passes through the material under study.

Отличительной особенностью предлагаемого устройства  вл етс  то, что оно выполнено в виде звукового интерферометра, один нз неподвижных звукопроводов которого состав. образец из испытуемого материала, а подвижный звукопровод, осуществл ющий сдвиг фаз, включен одновременно в оба неподвижные звуконровода интерферометра .A distinctive feature of the proposed device is that it is made in the form of a sound interferometer, one of which has no fixed sound lines. a sample of the tested material, and a moving acoustic conductor carrying out a phase shift is simultaneously included in both fixed sound pipes of the interferometer.

Ма че)теже изображен интерферометр с испытуемым образцом.The math is also an interferometer with the test sample.

Камертон 2 приводитс  в действие электромагнито.м 3 н звук его распредел етс  по звукопроводам 4 н 5, причем звукова  волна, пдуп ,а  по звукопроводу 4, вследствие наличи  в нем образца 1 приходит 3 общую точку 6 рапьше, чем звукова  волна, идуща  по звуконроводу 5. Путем одинакового измерени  длины звукопроводов и при помонш регулировочного .приспособлени  добиваютс  полной интерференции II затухани  звука, что производитс  или неиосредственно на слух Б точке 7, или по гальванометру 8, присоединенному, к микрофону 9, который в свою очередь присоединен к звукопроводу в точке 7. Подвижна  часть волновода имеет стрелку 10, скольз щую вдоль шкалы 11.The tuning fork 2 is actuated by an electromagnet. M 3 n its sound is distributed along the sound ducts 4 and 5, and the sound wave, pdup, and along the sound duct 4, due to the presence of sample 1 in it, 3 comes to a common point 6 times lower than the sound wave sound conductor 5. By uniformly measuring the length of the sound pipes and adjusting devices, one achieves a complete interference II of the attenuation of the sound, which is done either directly by hearing point 7, or by a galvanometer 8 connected to microphone 9, which in turn is connected of the connections to the acoustic line at a point 7. The movable portion of the waveguide has an arrow 10, sliding along the scale 11.

По показани м шкалы определ ют фаз звуковых волн и, следовательно, скорость звука в испытуемом материале. По данным взвешивани  определ етс  плотность образца 1 и вычисл етс  модульThe scales determine the phases of the sound waves and, therefore, the speed of sound in the test material. From the weighing data, the density of sample 1 is determined and the modulus is calculated.

упругости Е. При измерении могут примен тьс  камертоны 2 с различным числом колебаний, чтобы иметь возможиость точных отсчетов иоelasticity E. For the measurement, tuning forks 2 with different numbers of vibrations can be used to enable accurate readings

шкале 1scale 1

Предмет изобретени Subject invention

Устройство дл  онрсделени  модул  упругости материала по скорости распространени  в нем звука, отличающеес  тем, что оно выполнено Б виде звукового интерферометра, однн пз ненодвнжных звуконроводов которого составл ет образец из испытуемого материала, а нодвижный звуконровод, осуществл юш,ий сдвиг фаз, включен однорремеипо в ойа неподвижные звукопровода интерферометра.A device for separating the modulus of elasticity of a material by the speed of sound propagation in it, characterized in that it is made in the form of a sound interferometer, one of which is unimproved sound conductors, which is a sample of the test material Oi fixed sound guide interferometer.

//

SU392310A 1949-02-19 1949-02-19 Device for determining the modulus of elasticity of a material by the speed of sound propagation in it SU80278A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU392310A SU80278A1 (en) 1949-02-19 1949-02-19 Device for determining the modulus of elasticity of a material by the speed of sound propagation in it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU392310A SU80278A1 (en) 1949-02-19 1949-02-19 Device for determining the modulus of elasticity of a material by the speed of sound propagation in it

Publications (1)

Publication Number Publication Date
SU80278A1 true SU80278A1 (en) 1949-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU392310A SU80278A1 (en) 1949-02-19 1949-02-19 Device for determining the modulus of elasticity of a material by the speed of sound propagation in it

Country Status (1)

Country Link
SU (1) SU80278A1 (en)

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