Določanje frekvenčne prenosne funkcije merilnika tlaka pri dinamičnem umerjanju z udarno cevjo

zaključna naloga Razvojno raziskovalnega programa I. stopnje Strojništvo

Žan Komel (Author), Jože Kutin (Mentor), Andrej Svete (Co-mentor)

Abstract

V okviru te naloge smo s pomočjo programskega okolja LabVIEW izdelali program, kateri določi frekvenčno prenosno funkcijo obravnavanega sistema z uporabo hitre Fourierjeve transformacije. Najprej smo jo določevali na simuliranih signalih, kasneje tudi na meritvah, pridobljenih z dinamičnim generatorjem skočne spremembe tlaka, udarno cevjo. Obravnavani so pogreški metode v primerjavi z analitično rešitvijo. Predstavljeni so tudi vplivi lastne frekvence, razmernika dušenja, frekvence vzorčenja in dolžine zajetega signala na točnost metode.

Keywords

diplomske naloge;frekvenčna prenosna funkcija;merilnik tlaka;udarna cev;dinamično umerjanje;skočni odziv;Fourierjeva transformacija;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[Ž. Komel]
UDC:	517.443:531.787:004.4(043.2)
COBISS:	30670083
Views:	764
Downloads:	170
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Determination of the frequency transfer function of a pressure meter in dynamic calibration with a shock tube
Secondary abstract:	Within this thesis, we developed a computer program that determines the frequency transfer function of the considered system using fast Fourier transform in the LabVIEW programming environment. We first determined it on simulated signals and later also on measured signals obtained with a pressure step generator, the shock tube. Errors of the method in comparison with the analytical solution are considered. Furthermore, the effects of natural frequency, damping ratio, sampling frequency and acquired signal length on the accuracy of the method are also presented.
Secondary keywords:	thesis;frequency transfer function;pressure meter;shock tube;dynamic calibration;step response;Fourier transform;
Type (COBISS):	Final paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XII, 23 f.
ID:	12031313