SU815519A1 - Method of measuring elastic-oscillation propagation velocity - Google Patents
Method of measuring elastic-oscillation propagation velocity Download PDFInfo
- Publication number
- SU815519A1 SU815519A1 SU792760137A SU2760137A SU815519A1 SU 815519 A1 SU815519 A1 SU 815519A1 SU 792760137 A SU792760137 A SU 792760137A SU 2760137 A SU2760137 A SU 2760137A SU 815519 A1 SU815519 A1 SU 815519A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- measuring
- propagation
- capacitor
- propagation velocity
- voltage
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
(54) СПОСОБ ИЗМЕРЕНИЯ СКОРОСТИ РАСПРОСТРАНЕНИЯ УПРУГИХ КОЛЕБАНИЙ : нов сопротивление 11, ключ 7, конденсатор 8, плюс источника питани . Напр жение на конденсаторе 8 измер етс прибором 12, шкала которого проградуирована в единицах скорости. Конденсатор может зар дитьс до напр жени - Jj- РН tnflax Ьде ЕК - напр жение источника питани J,f - коллекторный ток транзистора R - величина нагрузочного сопротивлени 11. Напр жение и, можно мен ть, из мен ток коллектора изменением тока базы при помощи базового сопротивлени 10. Основным преимуществом предлагаемого способа вл етс уменьшение вре мени измерений. , формула изобретени Способ измерени скорости распрос ранени упругих колебаний, заключающийс в том, что зар жают (разр жают-) конденсатор за врем , равное времени распространени упругих колебаний на измен гачейс длине базы прозвучивани , с последующим измерением напр жени на нем, а о скорости распространени упругих колебаний суд т по величине измеренного напр жени , отличающийс тем, что, с целью уменьшени времени измерений, скорость зар да (разр да) конденсатора выбирают обратной длине базы прозву- i . чивани . Источники информации, прин тые во внимание при экспертизе 1. Ватолин Е. С. и др. Установка дл замера скорости распространени звуковых волн в горных породах. Разрушение горных пород и крепких углей. Научные сообщени ИГД им. А. А. Скочинского, 1974, вып. 118, с. 22-25 (прототип).(54) METHOD FOR MEASURING SPEED DISTRIBUTION OF ELASTIC VIBRATIONS: new resistance 11, key 7, capacitor 8, plus a power source. The voltage on the capacitor 8 is measured by the device 12, the scale of which is calibrated in units of speed. The capacitor can be charged to the voltage - Jj-PH tnflax where EK is the voltage of the power source J, f is the collector current of the transistor R is the value of the load resistance 11. The voltage can be changed, changing the collector by changing the base current using base resistance 10. The main advantage of the proposed method is the reduction of the measurement time. , claims The method of measuring the rate of propagation of elastic oscillations, which consists in charging (discharging-) a capacitor for a time equal to the time of propagation of elastic oscillations on a change in the length of the sounding base, and then measuring the voltage on it The propagation of elastic oscillations is judged by the magnitude of the measured voltage, characterized in that, in order to reduce the measurement time, the charge rate (discharge) of the capacitor is chosen to reverse the length of the base, i. chivan. Sources of information taken into account in the examination 1. Vatolin E. S. et al. Installation for measuring the speed of propagation of sound waves in rocks. Destruction of rocks and hard coal. Scientific reports IGD them. A. A. Skochinsky, 1974, no. 118, p. 22-25 (prototype).
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792760137A SU815519A1 (en) | 1979-04-24 | 1979-04-24 | Method of measuring elastic-oscillation propagation velocity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792760137A SU815519A1 (en) | 1979-04-24 | 1979-04-24 | Method of measuring elastic-oscillation propagation velocity |
Publications (1)
Publication Number | Publication Date |
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SU815519A1 true SU815519A1 (en) | 1981-03-23 |
Family
ID=20825136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU792760137A SU815519A1 (en) | 1979-04-24 | 1979-04-24 | Method of measuring elastic-oscillation propagation velocity |
Country Status (1)
Country | Link |
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SU (1) | SU815519A1 (en) |
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1979
- 1979-04-24 SU SU792760137A patent/SU815519A1/en active
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