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Control chart limits based on true process capability with consideration of measurement system error
International Journal of Metrology and Quality Engineering, 2016 Shewhart X̅ and R control charts and process capability indices, proven to be effective tools in statistical process control are widely used under the assumption that the measurement system is free from errors.
Amara Souha Ben +2 more
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Ingeniería, 2018 Resumen— El monitoreo global de la calidad de un producto está sujeto a la evaluación simultánea de varias de sus características; es necesario bajo estas condiciones la implementación de las cartas de control tipo multivariadas. La variabilidad, en este
Rister Junior Barreto Pombo +2 more
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Power functions of the Shewhart control chart
Journal of Physics: Conference Series, 2013 The Shewhart control chart is used to check for a lack of control (a shift in the process). However it is insensitive to small shifts. To increase the sensitivity of the Shewhart control chart, some actions can be taken. These include reducing the width of the control limits, increasing the subgroup size to reduce the variance of the sample mean and ...
openaire +1 more source
A robust Shewhart control chart adjustment strategy
, 2008 The standard Shewhart control chart for monitoring process stability is generalized by selecting a point in time at which the distance between the control limits is reduced.
Zou, Xueli
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Evaluation of the Run-Length Distribution for a Combined Shewhart-EWMA Control Chart [PDF]
, 2007 A simple algorithm is introduced for computing the run length distribution of a monitoring scheme combining a Shewhart chart with an Exponentially Weighted Moving Average control chart.
Capizzi, Giovanna, Masarotto, Guido
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Estimation in Shewhart control charts
, 2000 The influence of the estimation of parameters in Shewhart control charts is investigated. It is shown by simulation and asymptotics that (very) large sample sizes are needed to accurately determine control charts if estimators are plugged in. Correction terms are developed to get accurate control limits for common sample sizes in the in-control ...
Albers, Willem, Kallenberg, Wilbert C.M.
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, 2018 The usual Shewhart control chart efficiently detects large shifts in the mean of a quality characteristic and has been extensively studied in the literature.
Linna, Kenneth W.
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Citation: 'Shewhart control chart' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08125 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms ...
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Signal Probabilities of Runs Rules Supplementing a Shewhart Control Chart
, 1997 Supplementary runs rules have often been suggested for use with Shewhart control charts. For a given set of runs rules supplementing a control chart, a method is given for calculating the probability any subset of these rules will cause the out-of ...
Woodall, William H., Champ, Charles W.
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, 1996 One of the most typically used economic designs of control chart models is the standard Shewhart control chart model. Understanding the policies of the Shewhart control chart model is necessary before a sensitivity analysis of control chart cost model ...
Chieh, Kohsin
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