Academic Journal
The evaluation of measuring devices instrumental errors influence on informative parameters measuring accuracy
| Τίτλος: | The evaluation of measuring devices instrumental errors influence on informative parameters measuring accuracy |
|---|---|
| Πηγή: | Information systems, mechanics and control; No. 15 (2016); 11-18 Информационные системы, механика и управление; № 15 (2016); 11-18 Інформаційні системи, механіка та керування; № 15 (2016); 11-18 |
| Στοιχεία εκδότη: | FASS, NTUU "Igor Sikorsky Kyiv Polytecnic Institute", 2016. |
| Έτος έκδοσης: | 2016 |
| Θεματικοί όροι: | інформативні параметри, informative parameters, информативные параметры, інструментальна похибка, instrumental error, инструментальная погрешность |
| Περιγραφή: | In the developed measuring tools measuring methods were implemented for informative parameters of harmonic signals using the discrete Fourier transform (DFT) and correction of measuring errors forphase difference and amplitude. Designed layouts based on the virtual instruments to the measuring instruments demonstrate the advantages of the method DFT, allow us to determine the specified metrological characteristics and to correct the errors of their measurement.As a comparing result values of error for estimate value of the phase difference without correction and error estimation of the phase difference with correction we clarified, that the corrective edits in designed phasemeter reduce more than factor 10 the level of error values of the measurement result of the phase difference in comparison with the results without applying a correction.The estimation error of the phase difference with correction has a back-quadratic dependence with the number of analyzed periods of the signal, which sharply decreases already when you change the number of periods from one to four.The accuracy of the calibrator phase shifts is determined by the instrumental error of the DAC and methodical error of creating signal and depends on the number of samples per signal period.The filters affect to error of the calibrator phase shifts can be minimized by ensuring the identity of their phase-and-frequency characteristics.Using more perfect methods of analog-to-digital conversion will improve performance, expand the bandwidth of the signals and increase the ratio signal/noise. Note that errors were made on the stage of analog-to-digital conversion, are difficult to separate from the converted signal and completely eliminate them during further digital processing. Therefore, you should pay attention to the value of the instrumental errors of the ADC and DAC. Рассмотрено влияние инструментальных погрешностей, обусловленных использованием АЦП и ЦАП, на точность измерения информативных параметров (амплитуды и разности фаз) гармонических сигналов в разработанных средствах измерений (фазометре, калибраторе фазовых сдвигов, автоматизированном рабочем месте метролога). Розглянуто вплив інструментальних похибок, обумовлених використанням АЦП і ЦАП, на точність вимірювання інформативних параметрів (амплітуди і різниці фаз) гармонічних сигналів у розроблених засобах вимірювань (фазометрі, калібраторі фазових зсувів, автоматизованому робочому місці метролога) |
| Τύπος εγγράφου: | Article |
| Περιγραφή αρχείου: | application/pdf |
| Γλώσσα: | Ukrainian |
| ISSN: | 2219-3804 2519-2256 |
| Σύνδεσμος πρόσβασης: | http://ismc.kpi.ua/article/view/85142 |
| Rights: | CC BY NC ND |
| Αριθμός Καταχώρησης: | edsair.scientific.p..f9fbc7f0c7a604734b58d78f36fbfd61 |
| Βάση Δεδομένων: | OpenAIRE |
| FullText | Text: Availability: 0 CustomLinks: – Url: https://explore.openaire.eu/search/publication?articleId=scientific_p%3A%3Af9fbc7f0c7a604734b58d78f36fbfd61 Name: EDS - OpenAIRE (ns324271) Category: fullText Text: View record at OpenAIRE |
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| Items | – Name: Title Label: Title Group: Ti Data: The evaluation of measuring devices instrumental errors influence on informative parameters measuring accuracy – Name: TitleSource Label: Source Group: Src Data: Information systems, mechanics and control; No. 15 (2016); 11-18<br />Информационные системы, механика и управление; № 15 (2016); 11-18<br />Інформаційні системи, механіка та керування; № 15 (2016); 11-18 – Name: Publisher Label: Publisher Information Group: PubInfo Data: FASS, NTUU "Igor Sikorsky Kyiv Polytecnic Institute", 2016. – Name: DatePubCY Label: Publication Year Group: Date Data: 2016 – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22інформативні+параметри%22">інформативні параметри</searchLink><br /><searchLink fieldCode="DE" term="%22informative+parameters%22">informative parameters</searchLink><br /><searchLink fieldCode="DE" term="%22информативные+параметры%22">информативные параметры</searchLink><br /><searchLink fieldCode="DE" term="%22інструментальна+похибка%22">інструментальна похибка</searchLink><br /><searchLink fieldCode="DE" term="%22instrumental+error%22">instrumental error</searchLink><br /><searchLink fieldCode="DE" term="%22инструментальная+погрешность%22">инструментальная погрешность</searchLink> – Name: Abstract Label: Description Group: Ab Data: In the developed measuring tools measuring methods were implemented for informative parameters of harmonic signals using the discrete Fourier transform (DFT) and correction of measuring errors forphase difference and amplitude. Designed layouts based on the virtual instruments to the measuring instruments demonstrate the advantages of the method DFT, allow us to determine the specified metrological characteristics and to correct the errors of their measurement.As a comparing result values of error for estimate value of the phase difference without correction and error estimation of the phase difference with correction we clarified, that the corrective edits in designed phasemeter reduce more than factor 10 the level of error values of the measurement result of the phase difference in comparison with the results without applying a correction.The estimation error of the phase difference with correction has a back-quadratic dependence with the number of analyzed periods of the signal, which sharply decreases already when you change the number of periods from one to four.The accuracy of the calibrator phase shifts is determined by the instrumental error of the DAC and methodical error of creating signal and depends on the number of samples per signal period.The filters affect to error of the calibrator phase shifts can be minimized by ensuring the identity of their phase-and-frequency characteristics.Using more perfect methods of analog-to-digital conversion will improve performance, expand the bandwidth of the signals and increase the ratio signal/noise. Note that errors were made on the stage of analog-to-digital conversion, are difficult to separate from the converted signal and completely eliminate them during further digital processing. Therefore, you should pay attention to the value of the instrumental errors of the ADC and DAC.<br />Рассмотрено влияние инструментальных погрешностей, обусловленных использованием АЦП и ЦАП, на точность измерения информативных параметров (амплитуды и разности фаз) гармонических сигналов в разработанных средствах измерений (фазометре, калибраторе фазовых сдвигов, автоматизированном рабочем месте метролога).<br />Розглянуто вплив інструментальних похибок, обумовлених використанням АЦП і ЦАП, на точність вимірювання інформативних параметрів (амплітуди і різниці фаз) гармонічних сигналів у розроблених засобах вимірювань (фазометрі, калібраторі фазових зсувів, автоматизованому робочому місці метролога) – Name: TypeDocument Label: Document Type Group: TypDoc Data: Article – Name: Format Label: File Description Group: SrcInfo Data: application/pdf – Name: Language Label: Language Group: Lang Data: Ukrainian – Name: ISSN Label: ISSN Group: ISSN Data: 2219-3804<br />2519-2256 – Name: URL Label: Access URL Group: URL Data: <link linkTarget="URL" linkTerm="http://ismc.kpi.ua/article/view/85142" linkWindow="_blank">http://ismc.kpi.ua/article/view/85142</link> – Name: Copyright Label: Rights Group: Cpyrght Data: CC BY NC ND – Name: AN Label: Accession Number Group: ID Data: edsair.scientific.p..f9fbc7f0c7a604734b58d78f36fbfd61 |
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| RecordInfo | BibRecord: BibEntity: Languages: – Text: Ukrainian Subjects: – SubjectFull: інформативні параметри Type: general – SubjectFull: informative parameters Type: general – SubjectFull: информативные параметры Type: general – SubjectFull: інструментальна похибка Type: general – SubjectFull: instrumental error Type: general – SubjectFull: инструментальная погрешность Type: general Titles: – TitleFull: The evaluation of measuring devices instrumental errors influence on informative parameters measuring accuracy Type: main BibRelationships: IsPartOfRelationships: – BibEntity: Dates: – D: 10 M: 10 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 22193804 – Type: issn-print Value: 25192256 – Type: issn-locals Value: edsair – Type: issn-locals Value: edsairFT Titles: – TitleFull: Information systems, mechanics and control Type: main |
| ResultId | 1 |