Calibration of High Frequency Instruments-Evaluation of Uncertainty by Monte Carlo Approach |
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| Marija Cundeva-Blajer, Gjorgji Dimitrovski, Monika Nakova, Kiril Demerdziev |
- Abstract:
- The calibration of high frequency instruments, like oscilloscopes or frequency counters, is a metrologically very intensive task, due to: complex measurement procedures, unattested SI measurement traceability chain for high frequencies signals, and numerous uncertainty contributions. These calibrations are to some extent prescribed in the Euramet cg-7 Guideline. The uncertainty models for calibration of oscilloscopes, introduced by the Laboratory for Electrical Measurements at the Ss. Cyril and Methodius University in Skopje are presented. An original software developed in LabVIEWTM, MonteCalc Uncertainty Toolkit, based on both methods, the GUM and the stochastic Monte Carlo approach for uncertainty evaluation is applied on experimental data from laboratory calibration of a high frequency oscilloscope with over 500 MHz range. The results from the two methods are compared and discussed. Based on the uncertainty propagation distribution gained, conformity assessment of the artefact of calibration in particular measurement points, is made against prescribed decision making rules embedded in the MonteCalc Uncertainty Toolkit.
- Download:
- IMEKO-TC8-11-24-2025-022.pdf
- DOI:
- 10.21014/tc11-2025.022
- Event details
- IMEKO TC:
- TC11
- Event name:
- IMEKO TC8, TC11 and TC24 Conference
- Title:
Joint conference of the TCs ‘Traceability in Metrology’ (IMEKO TC8), ‘Measurement in Testing, Inspection and Certification’ (IMEKO TC11), and ‘Chemical Measurements’ (IMEKO TC24).
- Place:
- Torino, ITALY
- Time:
- 14 September 2025 - 17 September 2025