Guidance Documents on Measurement Uncertainty: An Overview and Critical Analysis

Jornada, Daniel Homrich da; Caten, Carla ten; Pizzolato, Morgana

doi:10.1080/19315775.2010.11721507

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…The GUM uncertainty framework performs the propagation of standard uncertainties using the so-called law of propagation of uncertainty. Assuming that function f has sufficient linearity, the first-order expansion in Taylor's series will be used [19,27]:…”

Section: Measurement Functions and Methods For The Uncertainty Calculmentioning

confidence: 99%

“…According to [27], the described MCM does not have the limitations of the GUM uncertainty framework when linearisation of the model provides an inadequate representation, or the probability density function for the output quantity departs appreciably from a Gaussian distribution or a scaled and shifted tdistribution. In this paper, the Gaussian distribution is used due to a relatively large sample [15] and a central limit theorem [30].…”

Section: Uncertainty Calculated Using MCMmentioning

confidence: 99%

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Measurement uncertainty of the instantaneous characteristics of non‐linear coil obtained by Dommel's method

Miličević

Biondić

Vulin

2017

IET Science, Measurement & Technology

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Section: Measurement Functions and Methods For The Uncertainty Calculmentioning

confidence: 99%

Section: Uncertainty Calculated Using MCMmentioning

confidence: 99%

Measurement uncertainty of the instantaneous characteristics of non‐linear coil obtained by Dommel's method

Miličević

Biondić

Vulin

2017

IET Science, Measurement & Technology

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“…Our parameter estimation and uncertainty quantification approach is derived using principles from Bayesian probability theory, for example, as presented in [21]- [23], and is in large agreement with the core probabilistic principles stated in the Joint Committee for Guides in Metrology (JCGM) Guide to the Expression of Uncertainty in Measurement (GUM) [24], with key principles and assumptions summarized in [25] and [26]. There are of course underlying differences between the original GUM and the general Bayesian approach, which are outside the scope of this paper.…”

mentioning

confidence: 99%

Physics-Based Precursor Wiring Diagnostics for Shielded-Twisted-Pair Cable

Schuet

Timuçin

Wheeler

2015

IEEE Trans. Instrum. Meas.

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The capability to locate and characterize precursor wiring faults, such as chafing or pinching potentially enables preventive maintenance well before hard failures occur, thus maximizing system functionality and safety while minimizing outof-service time. Toward this goal, results are presented on the application of a deterministic Bayesian inference procedure well suited for detecting chafing and pinch faults through the use of a newly developed physics-based model for shielded-twisted-pair cable. This method is significantly faster than more traditional nondeterministic Bayesian methods, such as Markov chain Monte Carlo, and retains many of the desirable features inherent to the Bayesian approach. These include the ability to quantify estimation uncertainty and model evidence in probabilistic terms, which then enables the study and design of noise-tolerant fault detection algorithms capable of classifying different types of faults. The fault parameter estimation results from both laboratory and field measurements on a C17 jet engine are shown to demonstrate the achievable model fidelity and the overall viability of the approach.

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“…UNXRelatif = final combined uncertainty in the relative form usRelatif = the value of us expressed in relative using Eq. 13 ucm2Relatif = uncertainty came from clamp meter F-337 expressed in relative The final uncertainty was expanded uncertainty (UNX) which the value evaluated based on guidelines of GUM (JCGM, 2008) with confidence level of 95% and expressed in relative (%) of the N nominal value(Jornada, Caten & Pizzolato, 2016).…”

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confidence: 99%

A Method for Calibrating 10-Turn and 50-Turn Current Coil Using Multiproduct Calibrator

Amalia¹,

Faisal²

2019

j. standard.

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This paper presents a traceable measurement method developed in the Laboratory of National Measurement Standards for Electricity and Time (NMS Lab for Electricity and Time) -National Standardization Agency of Indonesia for calibrating current coil in order to obtain correction and uncertainty estimation of the current coil windings number (N). Current coils as objects of this research were 10-turn and 50-turn current coil. Calibration was performed using standard multiproduct calibrator (MPC) and two auxiliary devices, current coil F-5500 and clamp meter F-337. Correction and uncertainty values of N current coil were evaluated for DC and AC supplied current using formulation developed based on principle of current division between current coil output and supplied current from MPC. Based on evaluation result analysis, the expanded uncertainties of this method span from 0.47% to 1.0% (when supplied by DC current) and from 0.57% to 1.1% (when supplied by AC current) for 10-turn current coil, and span from 0.44% to 0.65% (when supplied by DC current) and from 0.54% to 0.96% (when supplied by AC current) for 50-turn current coil. Moreover, it also showed that the largest uncertainty component came from current coil F-5500. Meanwhile, the largest correction for 10-turn current coil was obtained 1.2% at 10 A DC, and for 50-turn current coil was obtained -0.47% at 700 A AC. Verification of the calibration and evaluation methods had also been carried out and it indicated that the calibration and analysis methods developed can be used to examine the performance of the current coil. AbstrakPaper ini memaparkan tentang metode pengukuran tertelusur yang dikembangkan di Laboratorium Standar Nasional Satuan Ukuran Kelistrikan dan Waktu (Lab SNSU Kelistrikan dan Waktu) Badan Standardisasi Nasional (BSN) untuk mengkalibrasi current coil guna mendapatkan koreksi dan estimasi ketidakpastian jumlah lilitan (N) current coil. Current coil yang menjadi objek penelitian ini adalah current coil 10 lilitan dan 50 lilitan. Kalibrasi dilakukan dengan menggunakan standar multiproduct calibrator (MPC) dan dua perangkat bantu, yaitu current coil F-5500 dan clamp meter F-337. Nilai koreksi dan ketidakpastian N current coil dievaluasi untuk arus suplai DC dan AC dengan formulasi yang dikembangkan berdasarkan prinsip pembagian arus antara arus keluaran currrent coil dengan arus suplai MPC. Berdasarkan analisis hasil evaluasi, ketidakpastian bentangan yang didapatkan menggunakan metode ini terentang dari 0,47% hingga 1,0% (ketika disuplai oleh arus DC) dan dari 0,57% hingga 1,1% (ketika disuplai oleh arus AC) untuk current coil 10 lilitan, dan terentang dari 0,44% hingga 0,65% (ketika disuplai oleh arus DC) dan dari 0,54% hingga 0,96% (ketika disuplai oleh arus AC) untuk current coil 50 lilitan. Selain itu, hasil analisa juga menunjukkan bahwa komponen ketidakpastian terbesar berasal dari current coil F-5500. Sementara itu, koreksi terbesar untuk current coil 10 lilitan didapatkan sebesar 1,2% pada 10 A DC, dan untuk current coil 50 lilitan adalah...

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Guidance Documents on Measurement Uncertainty: An Overview and Critical Analysis

Cited by 7 publications

References 6 publications

Measurement uncertainty of the instantaneous characteristics of non‐linear coil obtained by Dommel's method

Measurement uncertainty of the instantaneous characteristics of non‐linear coil obtained by Dommel's method

Physics-Based Precursor Wiring Diagnostics for Shielded-Twisted-Pair Cable

A Method for Calibrating 10-Turn and 50-Turn Current Coil Using Multiproduct Calibrator

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