SU659913A1 - Method of measuring resilient oscillatory system logarithmic attenuation decrement - Google Patents
Method of measuring resilient oscillatory system logarithmic attenuation decrementInfo
- Publication number
- SU659913A1 SU659913A1 SU772540136A SU2540136A SU659913A1 SU 659913 A1 SU659913 A1 SU 659913A1 SU 772540136 A SU772540136 A SU 772540136A SU 2540136 A SU2540136 A SU 2540136A SU 659913 A1 SU659913 A1 SU 659913A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- voltages
- values
- measuring
- decrement
- waves
- Prior art date
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
рации вычитани максимальных и минимальных уровней сигналов в первом и Л-ном периодах затухающего колебани .radios subtracting the maximum and minimum signal levels in the first and first periods of the damped oscillation.
Разностные напр жени с выходов вычитающих устройств подают на два входа сравнивающего устройства 9, на третий вход которого подаетс экспоненциально измен ющеес эталонное папр жение с генератора 10 напр жени .The differential voltages from the outputs of the subtracting devices are fed to the two inputs of the comparison device 9, to the third input of which an exponentially varying reference voltage is fed from the voltage generator 10.
В моменты равенства экспоненциального и каждого разностного напр жений сравнивающее устройство вырабатывает импульсы , временной интервал между фронтами которых пропорционален логарифмическому декременту колебательного процесса.At the moments of equality of the exponential and each difference voltage, the comparator produces pulses, the time interval between the fronts of which is proportional to the logarithmic decrement of the oscillatory process.
Основным преимуществом предложенного способа вл етс значительное повышение точности измерений, а также возможность вести измерение логарифмического декремента в соответствии с существующими ГОСТами, например 20812-75, что выгодно отличает предложенный способ от прототипа.The main advantage of the proposed method is a significant increase in the accuracy of measurements, as well as the ability to measure the logarithmic decrement in accordance with existing state standards, for example 20812-75, which distinguishes the proposed method from the prototype.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772540136A SU659913A1 (en) | 1977-11-04 | 1977-11-04 | Method of measuring resilient oscillatory system logarithmic attenuation decrement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772540136A SU659913A1 (en) | 1977-11-04 | 1977-11-04 | Method of measuring resilient oscillatory system logarithmic attenuation decrement |
Publications (1)
Publication Number | Publication Date |
---|---|
SU659913A1 true SU659913A1 (en) | 1979-04-30 |
Family
ID=20731565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772540136A SU659913A1 (en) | 1977-11-04 | 1977-11-04 | Method of measuring resilient oscillatory system logarithmic attenuation decrement |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU659913A1 (en) |
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1977
- 1977-11-04 SU SU772540136A patent/SU659913A1/en active
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