Experimentation, Validation, and Uncertainty Analysis for Engineers

Coleman, Hugh W.; Steele, W. Glenn

doi:10.1002/9780470485682

Cited by 525 publications

(310 citation statements)

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“…We can also use the propagation of uncertainty law as described in Taylor and Kuyatt [11], Gertsbakh [12], and Coleman and Steele [13] to calculate uncertainty. Applying the propagation of uncertainty to Equation (1), assuming that all cross terms are negligible, gives …”

Section: Resultsmentioning

confidence: 99%

Parametric Study of Calibration Blackbody Uncertainty Using Design of Experiments

Phojanamongkolkij¹,

Walker²,

Cageao³

et al. 2012

JASMI

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NASA is developing the Climate Absolute Radiance and Refractivity Observatory (CLARREO) mission to provide accurate measurements to substantially improve understanding of climate change. CLARREO will include a Reflected Solar (RS) Suite, an Infrared (IR) Suite, and a Global Navigation Satellite System-Radio Occultation (GNSS-RO). The IR Suite consists of a Fourier Transform Spectrometer (FTS) covering 5 to 50 micrometers (2000 -200 cm -1 wavenumbers) and on-orbit calibration and verification systems. The IR instrument will use a cavity blackbody view and a deep space view for on-orbit calibration. The calibration blackbody and the verification system blackbody will both have Phase Change Cells (PCCs) to accurately provide a SI reference to absolute temperature. One of the most critical parts of obtaining accurate CLARREO IR scene measurements relies on knowing the spectral radiance output from the blackbody calibration source. The blackbody spectral radiance must be known with a low uncertainty, and the magnitude of the uncertainty itself must be reliably quantified. This study focuses on determining which parameters in the spectral radiance equation of the calibration blackbody are critical to the blackbody accuracy. Fourteen parameters are identified and explored. Design of Experiments (DOE) is applied to systematically set up an experiment (i.e., parameter settings and number of runs) to explore the effects of these 14 parameters. The experiment is done by computer simulation to estimate uncertainty of the calibration blackbody spectral radiance. Within the explored ranges, only 4 out of 14 parameters were discovered to be critical to the total uncertainty in blackbody radiance, and should be designed, manufactured, and/or controlled carefully. The uncertainties obtained by computer simulation are also compared to those obtained using the "Law of Propagation of Uncertainty". The two methods produce statistically different uncertainties. Nevertheless, the differences are small and are not considered to be important. A follow-up study has been planned to examine the total combined uncertainty of the CLARREO IR Suite, with a total of 47 contributing parameters. The DOE method will help in identifying critical parameters that need to be effectively and efficiently designed to meet the stringent IR measurement accuracy requirements within the limited resources.

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Section: Resultsmentioning

confidence: 99%

Parametric Study of Calibration Blackbody Uncertainty Using Design of Experiments

Phojanamongkolkij¹,

Walker²,

Cageao³

et al. 2012

JASMI

View full text Add to dashboard Cite

show abstract

“…Timmins et al (2012) referred to this as the 'uncertainty effectiveness.' Assuming a Gaussian distribution, a 68.3 % confidence level is obtained when k = 1 and 95 % when k = 1.96 (Coleman and Steele 2009). Figure 8 illustrates the definitions we have introduced.…”

Section: Application To Experimental Datamentioning

confidence: 99%

“…Ultimately, one can either setup a prior covariance matrix for each velocity component independently, as was done by de Baar et al (2014), or a single covariance matrix…”

Section: The Prior On the Velocity Fieldmentioning

confidence: 99%

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A posteriori uncertainty quantification of PIV-based pressure data

et al. 2016

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“…The standard uncertainties (u(f)) also called standard errors (SE) of the experimental correlations have been derived as follows (Coleman and Steele, 2009): ( )…”

Section: Model Uncertainty Applied To Ari3sgmentioning

confidence: 99%

A Theoretical Investigation of Aerosol Retention Within the Secondary Side of a Steam Generator Under a SGTR Severe Accident Sequence in a PWR Nuclear Power Plant

Prá¹

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Experimentation, Validation, and Uncertainty Analysis for Engineers

Cited by 525 publications

References 0 publications

Parametric Study of Calibration Blackbody Uncertainty Using Design of Experiments

Parametric Study of Calibration Blackbody Uncertainty Using Design of Experiments

A posteriori uncertainty quantification of PIV-based pressure data

A Theoretical Investigation of Aerosol Retention Within the Secondary Side of a Steam Generator Under a SGTR Severe Accident Sequence in a PWR Nuclear Power Plant

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