PL423382A1 - Method for measuring frequency of vibrations - Google Patents
Method for measuring frequency of vibrationsInfo
- Publication number
- PL423382A1 PL423382A1 PL423382A PL42338217A PL423382A1 PL 423382 A1 PL423382 A1 PL 423382A1 PL 423382 A PL423382 A PL 423382A PL 42338217 A PL42338217 A PL 42338217A PL 423382 A1 PL423382 A1 PL 423382A1
- Authority
- PL
- Poland
- Prior art keywords
- signal
- vibrations
- values
- measuring
- result
- Prior art date
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Przedmiotem wynalazku jest sposób pomiaru częstotliwości drgań, stosowany w diagnostyce urządzeń mechanicznych, w szczególności diagnostyce samochodowej. Sposób pomiaru częstotliwości drgań zwłaszcza nadwozia pojazdu mechanicznego, charakteryzuje się tym, że za pomocą czujnika (Cz) dokonującego pomiaru drgań przebiegu zmienności zadanej wartości fizycznej, przyśpieszenia drgań od wartości wzorcowej. Uzyskane wartości konwertuje się na sygnał cyfrowy będący nośnikiem pozyskanych wyników (W). Sygnał ten przekazuje się do pamięci urządzenia komputerowego (K), do bloku obliczeń (BO), w którym to sygnał wyników (W) rozdziela się równolegle na kanały. Następnie jednego z kanałów sygnału z uzyskanych wartości (W) za pomocą algorytmu matematycznego oblicza się pochodną pozyskanych wartości (W'). Z wartości pierwotnych wyników (W) i z wartości pochodnych (W') wyznacza się amplitudy (A'x)(Ax). Wyznacza się częstotliwość drgań (f), która jest wprost proporcjonalna do amplitudy pochodnej sygnału (A'x) i odwrotnie proporcjonalna do podwojonego iloczynu stałej ? i amplitudy sygnału (Ax). Uzyskany wynik prezentuje się w bloku wyniku (BW), korzystnie na ekranie urządzenia komputerowego (K).The subject of the invention is a method of measuring the vibration frequency, used in the diagnostics of mechanical devices, in particular automotive diagnostics. The method of measuring the frequency of vibrations, especially of the motor vehicle body, is characterized by the fact that by means of a sensor (Cz) measuring the vibrations of the course of the setpoint physical variation, acceleration of vibrations from the reference value. The obtained values are converted into a digital signal which is the carrier of the obtained results (W). This signal is transferred to the memory of the computer device (K), to the calculation block (BO), in which the result signal (W) is divided in parallel into channels. Then, one of the signal channels from the obtained values (W) using a mathematical algorithm is calculated by the derivative of the obtained values (W '). From the original values of the results (W) and from the derived values (W ') the amplitudes (A'x) (Ax) are determined. The vibration frequency (f) is determined, which is directly proportional to the amplitude of the signal derivative (A'x) and inversely proportional to the doubled product of the constant? and signal amplitude (Ax). The obtained result is presented in the result block (BW), preferably on the screen of a computer device (K).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL423382A PL235633B1 (en) | 2017-11-07 | 2017-11-07 | Method for measuring frequency of vibrations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL423382A PL235633B1 (en) | 2017-11-07 | 2017-11-07 | Method for measuring frequency of vibrations |
Publications (2)
Publication Number | Publication Date |
---|---|
PL423382A1 true PL423382A1 (en) | 2019-05-20 |
PL235633B1 PL235633B1 (en) | 2020-09-21 |
Family
ID=66518972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL423382A PL235633B1 (en) | 2017-11-07 | 2017-11-07 | Method for measuring frequency of vibrations |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL235633B1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1054243A1 (en) * | 1999-05-19 | 2000-11-22 | Vibro-Meter Sa | Method and means for combined vibration measurement |
WO2003048714A1 (en) * | 2001-12-04 | 2003-06-12 | Skf Condition Monitoring, Inc. | Systems and methods for identifying the presence of a defect in vibrating machinery |
CA2582560A1 (en) * | 2007-03-22 | 2008-09-22 | Commtest Instruments Limited | Method and system for vibration signal processing |
PL207478B1 (en) * | 2006-06-07 | 2010-12-31 | Politechnika Wroclawska | The manner of measurement of vibrations and shifts of objects and device for measurement of vibrations and shifts of objects |
PL402801A1 (en) * | 2013-02-15 | 2014-03-03 | Famur Institute Spólka Z Ograniczona Odpowiedzialnoscia | Method for determining the effective value of vibration velocity |
EP2713146A2 (en) * | 2012-09-26 | 2014-04-02 | Vibrosystm Inc. | System and method for vibration severity assessment independently of vibration frequency |
WO2016089238A1 (en) * | 2014-12-02 | 2016-06-09 | Siemens Aktiengesellschaft | Monitoring of a device having a movable part |
-
2017
- 2017-11-07 PL PL423382A patent/PL235633B1/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1054243A1 (en) * | 1999-05-19 | 2000-11-22 | Vibro-Meter Sa | Method and means for combined vibration measurement |
WO2003048714A1 (en) * | 2001-12-04 | 2003-06-12 | Skf Condition Monitoring, Inc. | Systems and methods for identifying the presence of a defect in vibrating machinery |
PL207478B1 (en) * | 2006-06-07 | 2010-12-31 | Politechnika Wroclawska | The manner of measurement of vibrations and shifts of objects and device for measurement of vibrations and shifts of objects |
CA2582560A1 (en) * | 2007-03-22 | 2008-09-22 | Commtest Instruments Limited | Method and system for vibration signal processing |
EP2713146A2 (en) * | 2012-09-26 | 2014-04-02 | Vibrosystm Inc. | System and method for vibration severity assessment independently of vibration frequency |
PL402801A1 (en) * | 2013-02-15 | 2014-03-03 | Famur Institute Spólka Z Ograniczona Odpowiedzialnoscia | Method for determining the effective value of vibration velocity |
WO2016089238A1 (en) * | 2014-12-02 | 2016-06-09 | Siemens Aktiengesellschaft | Monitoring of a device having a movable part |
Also Published As
Publication number | Publication date |
---|---|
PL235633B1 (en) | 2020-09-21 |
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