Implementation of the Spectral Method for Determining of Measuring Instruments' Dynamic Characteristics

The spectral method for establishing dynamic response of measuring instruments basically requires determining the amplitude spectrum of the signal in its informative part that includes the amplitude spectrum at zero frequency. The operating frequency range of existing low-frequency spectrum analyzer...

Full description

Bibliographic Details
Main Authors: A. F. Sabitov, I. A. Safina
Format: Article
Language:English
Published: Belarusian National Technical University 2020-06-01
Series:Pribory i Metody Izmerenij
Subjects:
Online Access:https://pimi.bntu.by/jour/article/view/653
id doaj-ca7713b8865f454a858562b1c717bd17
record_format Article
spelling doaj-ca7713b8865f454a858562b1c717bd172021-07-29T08:39:11ZengBelarusian National Technical UniversityPribory i Metody Izmerenij2220-95062414-04732020-06-0111215516210.21122/2220-9506-2020-11-2-155-162514Implementation of the Spectral Method for Determining of Measuring Instruments' Dynamic CharacteristicsA. F. Sabitov0I. A. Safina1A.N. Tupolev Kazan National Research Technical UniversityA.N. Tupolev Kazan National Research Technical UniversityThe spectral method for establishing dynamic response of measuring instruments basically requires determining the amplitude spectrum of the signal in its informative part that includes the amplitude spectrum at zero frequency. The operating frequency range of existing low-frequency spectrum analyzers is above zero frequency that leads to an uncertainty in dynamic response of measuring instruments determined by the spectral method. The purpose of this paper is to develop a program for calculating the signal amplitude spectrum, starting from zero frequency, to implement a spectral method for determining the dynamic response of measuring instruments on computers equipped with the MatLab package.To implement the spectral method for determining the dynamic response of measuring instruments, we developed a program in the MatLab 2013b environment that determines the signal amplitude spectrum from zero Hertz. The program reads the source data from Excel tables and presents the calculated amplitude spectrum as a chart and a report table.It is shown that the developed program calculates the signal amplitude spectrum with a standard deviation of not more than 3.4 % in the frequency range of 0 to 10 rad/s. The calculated amplitude spectrum allows determining the time constant of first-order aperiodic measuring instruments with an uncertainty of not more than 0.166 % at any noise level, if their frequencies are outside the information part of the spectrum.We demonstrated the claimed advantage of the spectral method for determining dynamic response using the developed program by the example of a high-frequency noise in the transient response of some measuring instruments.https://pimi.bntu.by/jour/article/view/653amplitude spectrumdynamic characteristicsmeasuring instruments
collection DOAJ
language English
format Article
sources DOAJ
author A. F. Sabitov
I. A. Safina
spellingShingle A. F. Sabitov
I. A. Safina
Implementation of the Spectral Method for Determining of Measuring Instruments' Dynamic Characteristics
Pribory i Metody Izmerenij
amplitude spectrum
dynamic characteristics
measuring instruments
author_facet A. F. Sabitov
I. A. Safina
author_sort A. F. Sabitov
title Implementation of the Spectral Method for Determining of Measuring Instruments' Dynamic Characteristics
title_short Implementation of the Spectral Method for Determining of Measuring Instruments' Dynamic Characteristics
title_full Implementation of the Spectral Method for Determining of Measuring Instruments' Dynamic Characteristics
title_fullStr Implementation of the Spectral Method for Determining of Measuring Instruments' Dynamic Characteristics
title_full_unstemmed Implementation of the Spectral Method for Determining of Measuring Instruments' Dynamic Characteristics
title_sort implementation of the spectral method for determining of measuring instruments' dynamic characteristics
publisher Belarusian National Technical University
series Pribory i Metody Izmerenij
issn 2220-9506
2414-0473
publishDate 2020-06-01
description The spectral method for establishing dynamic response of measuring instruments basically requires determining the amplitude spectrum of the signal in its informative part that includes the amplitude spectrum at zero frequency. The operating frequency range of existing low-frequency spectrum analyzers is above zero frequency that leads to an uncertainty in dynamic response of measuring instruments determined by the spectral method. The purpose of this paper is to develop a program for calculating the signal amplitude spectrum, starting from zero frequency, to implement a spectral method for determining the dynamic response of measuring instruments on computers equipped with the MatLab package.To implement the spectral method for determining the dynamic response of measuring instruments, we developed a program in the MatLab 2013b environment that determines the signal amplitude spectrum from zero Hertz. The program reads the source data from Excel tables and presents the calculated amplitude spectrum as a chart and a report table.It is shown that the developed program calculates the signal amplitude spectrum with a standard deviation of not more than 3.4 % in the frequency range of 0 to 10 rad/s. The calculated amplitude spectrum allows determining the time constant of first-order aperiodic measuring instruments with an uncertainty of not more than 0.166 % at any noise level, if their frequencies are outside the information part of the spectrum.We demonstrated the claimed advantage of the spectral method for determining dynamic response using the developed program by the example of a high-frequency noise in the transient response of some measuring instruments.
topic amplitude spectrum
dynamic characteristics
measuring instruments
url https://pimi.bntu.by/jour/article/view/653
work_keys_str_mv AT afsabitov implementationofthespectralmethodfordeterminingofmeasuringinstrumentsdynamiccharacteristics
AT iasafina implementationofthespectralmethodfordeterminingofmeasuringinstrumentsdynamiccharacteristics
_version_ 1721252952079859712