Title :
Research on measurement of engine speed base on LabWindows/CVI
Author :
Hongwen, Liu ; Xiuxi, Ye
Author_Institution :
Shijiazhuang Mech. Eng. Coll., Shijiazhuang, China
Abstract :
Engine speed is a very important reference signal in the fault diagnosis of the engine. This paper discussed a method to measure the engine speed by analyzing the engine cylinder vibration signal, based on the software of LabWindows/CVI. We can get the speed of the engine after the fowling steps: firstly, sample the vibration signal produced by the burning gas in engine cylinder; and then using the software of LabWindows/CVI to process the signal by frequency spectrum analysis and low-pass filter; finally, combining the vibration source and the relationship between engine vibration and engine speed. The experiment result indicates that this engine speed measurement method shows a high precision.
Keywords :
angular velocity measurement; engine cylinders; fault diagnosis; low-pass filters; mechanical engineering computing; spectral analysis; user interfaces; vibrations; virtual instrumentation; LabWindows-CVI software; burning gas; engine cylinder vibration signal; engine speed measurement; fault diagnosis; frequency spectrum analysis; low-pass filter; Engine cylinders; Engines; Libraries; Software; Velocity measurement; Vibration measurement; Vibrations; Engine; FFT; LabWindows/CVI; Speed; Vibration;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8158-3
DOI :
10.1109/ICEMI.2011.6037813
