MATEC Web Conf.
Volume 252, 2019III International Conference of Computational Methods in Engineering Science (CMES’18)
|Number of page(s)||4|
|Section||Application of Computer Programs in Technology|
|Published online||14 January 2019|
Computer approximation of air gauge dynamic characteristics using the sine input test rig
Poznan University of Technology, Faculty of Mechanical Engineering and Management, Institute of Mechanical Technology, Pl. Marii Skłodowskiej-Curie 5, 60-965 Poznań, Poland
2 Kazimierz Pulaski University of Technology and Humanities, Faculty of Mechanical Engineering, ul. Stasieckiego 54, 26-600 Radom, Poland
* Corresponding author: email@example.com
The paper describes the test rig dedicated for air gauge dynamical characteristics assessment. The computerised system enables measurement of the amplitudes of back-pressure pk dependent on the input signal circular frequency ω. Dedicated software performs full control on the calibration procedure, which consists of setting a rotational speed and registration of measuring signal, and further data processing. Circular frequency ω was gradually changed with the appropriate step, in order to obtain a series of frequencies in the range from 0.1 to 20 Hz. The response of a measurement system was registered as a sinusoidal curve which after smoothening and interpolation procedures provided an amplitude-frequency graph with its main characteristics, such as time constant and the frequency f0.95 that generated dynamic error 5%. It was demonstrated that sine input dynamic calibration corresponds with real conditions of the in-process measurement with air gauges.
© The Authors, published by EDP Sciences, 2019
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