SU512421A1 - The method of measuring the speed of ultrasound in media - Google Patents
The method of measuring the speed of ultrasound in mediaInfo
- Publication number
- SU512421A1 SU512421A1 SU1426321A SU1426321A SU512421A1 SU 512421 A1 SU512421 A1 SU 512421A1 SU 1426321 A SU1426321 A SU 1426321A SU 1426321 A SU1426321 A SU 1426321A SU 512421 A1 SU512421 A1 SU 512421A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- media
- ultrasound
- oscillations
- measuring
- speed
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
1one
Изобретение относитс к области измерительной техники и может найти применение при определении свойств вещества.The invention relates to the field of measurement technology and may find application in determining the properties of a substance.
Известные способы основаны на измерении времени распространени колебаний между границами среды. Это врем получают как разницу фаз колебаний а границах среды. При этом точность результата зависит от точности из.мерени фазы.The known methods are based on measuring the time of oscillation propagation between the boundaries of the medium. This time is obtained as the difference of the phases of oscillations in the limits of the medium. The accuracy of the result depends on the accuracy of the phase measurement.
В отличие от известных, данный способ использует измерени отношени фазы колебаний в даниой точке к некоторому начально.му углу колебаний, например йа выходе фазового модул тора.In contrast to the known ones, this method uses measurements of the ratio of the phase of oscillations at the tribute point to some initial angle of oscillations, for example, the output of the phase modulator.
Цель изобретени - повышение точности.The purpose of the invention is to increase accuracy.
Это достигаетс тем, что по предлагаемому способу колебани модулируют по фазе и одновременно пропускают через исследуемую и эталонную среды с известной скоростью ультразвука . При этом на границах обеих сред измер ют отношение фазового угла к начальному углу колебаний. Потом дл каждой среды дел т относительные значени фаз друг на друга, получа относительный сдвиг фазы колебаний в исследуемой и эталонной средах. Затем относительный сдвиг фазы в исследуемой среде дел т на относительный сдвиг фазы в эталонной среде и умножают на известную скорость ультразвука в эталонной среде. Тем самым из конечного результата исключаетс погрешность измерени фазы.This is achieved by the fact that, according to the proposed method, the oscillations are modulated in phase and simultaneously passed through the test and reference media with a known speed of ultrasound. At the same time, the ratio of the phase angle to the initial angle of oscillations is measured at the boundaries of both media. Then, for each medium, the relative phase values of each other are divided, obtaining the relative phase shift of the oscillations in the test and reference media. Then, the relative phase shift in the test medium is divided by the relative phase shift in the reference medium and multiplied by the known ultrasound velocity in the reference medium. This eliminates the phase measurement error from the final result.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1426321A SU512421A1 (en) | 1970-04-08 | 1970-04-08 | The method of measuring the speed of ultrasound in media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1426321A SU512421A1 (en) | 1970-04-08 | 1970-04-08 | The method of measuring the speed of ultrasound in media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU512421A1 true SU512421A1 (en) | 1976-04-30 |
Family
ID=20451812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1426321A SU512421A1 (en) | 1970-04-08 | 1970-04-08 | The method of measuring the speed of ultrasound in media |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU512421A1 (en) |
-
1970
- 1970-04-08 SU SU1426321A patent/SU512421A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Denison et al. | Oscillatory flow measurements with a directionally sensitive laser velocimeter | |
| SU512421A1 (en) | The method of measuring the speed of ultrasound in media | |
| SU456987A1 (en) | Two-channel device for measuring the skew of a moving magnetic tape | |
| SU458775A1 (en) | Device for measuring the phase-frequency response of a magnetic recorder | |
| SU363931A1 (en) | PANORAMIC MEASURING GROUP TIME LATE | |
| SU493655A1 (en) | Device for adjusting and testing dynamic distortions meters of magnetic recording media | |
| SU100001A1 (en) | Distance determination method | |
| SU710004A1 (en) | Flow rate measuring method | |
| SU278263A1 (en) | ||
| SU437960A1 (en) | Method for measuring the speed of propagation of ultrasound | |
| SU398866A1 (en) | METHOD FOR DETERMINING ACOUSTIC CHARACTERISTICS OF VISCOUS-ELASTIC MATERIALS | |
| SU503179A1 (en) | Device for measuring the uniformity of speed of movement of a magnetic carrier | |
| SU489145A1 (en) | Method for determining temporal mismatch of signals reproduced from magnetic carrier | |
| SU1374103A1 (en) | Optical method of determining ultrasound wave velocity | |
| SU551499A1 (en) | Strain gauge device | |
| SU449325A1 (en) | Method for automatic determination of component losses in ferromagnets | |
| SU939956A1 (en) | Ultrasound vibration meter | |
| SU645095A1 (en) | Device for determining anemometric dynamic characteristics | |
| SU657255A1 (en) | Ultrasonic flowmeter | |
| SU595786A1 (en) | Method of determining coefficient of variations of record carrier speed | |
| SU430321A1 (en) | DEVICE FOR MEASURING THE VIBRATIONS OF THE MOTION VELOCITY OF A MAGNETIC MEDIA | |
| SU420938A1 (en) | DEVICE FOR ADJUSTMENT OF MEASURING VIBRATION MEASUREMENTS OF MOTION MEDIUM MOTION VELOCITY | |
| SU564601A1 (en) | Medium flow rate ultrasound meter | |
| SU560139A1 (en) | Ultrasonic device for controlling the size of objects | |
| SU1030719A1 (en) | Method of determination of transverse wave propagation rate in solid medium |