An improved SPRT control chart for monitoring process mean

Yanjing Ou; Zhang Wu; Songlin Chen; Ka Man Lee

doi:10.1007/s00170-010-2675-6

An improved SPRT control chart for monitoring process mean

Yanjing Ou, Zhang Wu, Songlin Chen, Ka Man Lee

Research output: Journal article publication › Journal article › Academic research › peer-review

20 Citations (Scopus)

Abstract

The sequential probability ratio test (SPRT) chart is a desirable tool for monitoring manufacturing processes due to its high effectiveness. It is especially suitable for applications where testing is very expensive or destructive, such as the automobile airbags test and unaxial tensile test. This article proposes a design algorithm for the SPRT chart in which the reference value (γ) of the SPRT chart is optimized. The design algorithm increases the overall effectiveness of the SPRT chart by more than 10% on average. Moreover, the improvement in detection effectiveness is achieved without any additional difficulty in implementation. A design table is also provided to facilitate quality engineers to design the SPRT chart.

Original language	English
Pages (from-to)	1045-1054
Number of pages	10
Journal	International Journal of Advanced Manufacturing Technology
Volume	51
Issue number	9-12
DOIs	https://doi.org/10.1007/s00170-010-2675-6
Publication status	Published - 1 Dec 2010
Externally published	Yes

Keywords

Control chart
Loss function
Optimization design
Sequential probability ratio test (SPRT)
Statistical process control (SPC)

ASJC Scopus subject areas

Control and Systems Engineering
Software
Mechanical Engineering
Computer Science Applications
Industrial and Manufacturing Engineering

More information

10.1007/s00170-010-2675-6

Cite this

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title = "An improved SPRT control chart for monitoring process mean",

abstract = "The sequential probability ratio test (SPRT) chart is a desirable tool for monitoring manufacturing processes due to its high effectiveness. It is especially suitable for applications where testing is very expensive or destructive, such as the automobile airbags test and unaxial tensile test. This article proposes a design algorithm for the SPRT chart in which the reference value (γ) of the SPRT chart is optimized. The design algorithm increases the overall effectiveness of the SPRT chart by more than 10% on average. Moreover, the improvement in detection effectiveness is achieved without any additional difficulty in implementation. A design table is also provided to facilitate quality engineers to design the SPRT chart.",

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AU - Wu, Zhang

AU - Chen, Songlin

AU - Lee, Ka Man

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N2 - The sequential probability ratio test (SPRT) chart is a desirable tool for monitoring manufacturing processes due to its high effectiveness. It is especially suitable for applications where testing is very expensive or destructive, such as the automobile airbags test and unaxial tensile test. This article proposes a design algorithm for the SPRT chart in which the reference value (γ) of the SPRT chart is optimized. The design algorithm increases the overall effectiveness of the SPRT chart by more than 10% on average. Moreover, the improvement in detection effectiveness is achieved without any additional difficulty in implementation. A design table is also provided to facilitate quality engineers to design the SPRT chart.

AB - The sequential probability ratio test (SPRT) chart is a desirable tool for monitoring manufacturing processes due to its high effectiveness. It is especially suitable for applications where testing is very expensive or destructive, such as the automobile airbags test and unaxial tensile test. This article proposes a design algorithm for the SPRT chart in which the reference value (γ) of the SPRT chart is optimized. The design algorithm increases the overall effectiveness of the SPRT chart by more than 10% on average. Moreover, the improvement in detection effectiveness is achieved without any additional difficulty in implementation. A design table is also provided to facilitate quality engineers to design the SPRT chart.

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KW - Loss function

KW - Optimization design

KW - Sequential probability ratio test (SPRT)

KW - Statistical process control (SPC)

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DO - 10.1007/s00170-010-2675-6

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JO - International Journal of Advanced Manufacturing Technology

JF - International Journal of Advanced Manufacturing Technology

IS - 9-12

ER -

An improved SPRT control chart for monitoring process mean

Abstract

Keywords

ASJC Scopus subject areas

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