PL423382A1 - Method for measuring frequency of vibrations - Google Patents

Method for measuring frequency of vibrations

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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
Application number
PL423382A
Other languages
Polish (pl)
Other versions
PL235633B1 (en
Inventor
Tomasz Szczepański
Stanisław Traczyk
Paweł Dziedziak
Original Assignee
Instytut Transp Samochodowego
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 Instytut Transp Samochodowego filed Critical Instytut Transp Samochodowego
Priority to PL423382A priority Critical patent/PL235633B1/en
Publication of PL423382A1 publication Critical patent/PL423382A1/en
Publication of PL235633B1 publication Critical patent/PL235633B1/en

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  • 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).

PL423382A 2017-11-07 2017-11-07 Method for measuring frequency of vibrations PL235633B1 (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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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