Basic MSA - A simple way to complete an MSA study on Dial Calipers

N

NWrubberQA

#1
We have done Gage R&R for years on new products, however, we have not actually done MSA's. What is a simple way to complete an MSA study on dial calipers? I've read the AIAG MSA manual and it seems overly complex. Any templates would be appreciated.
 
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Miner

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#2
MSA is simply a collection of statistical tools to quantify specific types of measurement error.


  • Bias - this is typically checked during calibration
  • Linearity - this is bias checked throughout the entire measurement range. This can also be checked during calibration if multiple measurements are taken at each calibration level.
  • Stability - This is an SPC chart of the gage taking repeated measurements of the same standard over an extended period of time. This could be incorporated into a verification check made by the operator for a specified time period.
  • Repeatability & Reproducibility - Standard R&R study
See post #27 of this thread Gage R&R (GR&R) Brain Teaser for a template.
See this thread Meeting the AIAG's MSA Manual Gage R&R Bias, Linearity, Stability requirements for a discussion on MSA.
 
Last edited:
N

NWrubberQA

#4
MSA is simply a collection of statistical tools to quantify specific types of measurement error.


  • Bias - this is typically checked during calibration
  • Linearity - this is bias checked throughout the entire measurement range. This can also be checked during calibration if multiple measurements are taken at each calibration level.
  • Stability - This is an SPC chart of the gage taking repeated measurements of the same standard over an extended period of time. This could be incorporated into a verification check made by the operator for a specified time period.
  • Repeatability & Reproducibility - Standard R&R study
See post #27 of this thread Gage R&R (GR&R) Brain Teaser for a template.
See this thread Meeting the AIAG's MSA Manual Gage R&R Bias, Linearity, Stability requirements for a discussion on MSA.
Miner,

Excellent info. I really appreciate your help!
 
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