Site Loader

Single Measurement Per Cycle

Application

a) Measurement systems in which the part is not changed by the measurement process; i.e., measurement systems that are nondestructive and will be used with parts (specimens) with:
 Static properties, or
 Dynamic (changing) properties which have been stabilized.
b) The shelf life of the characteristic (property) is known and extends beyond the expected duration of the study; i.e., the measured characteristic does not change over the expected period of use.

Assumptions

 The measurement system is known (documented) to have a linear response over the expected range of the characteristic (property).
 Parts (specimens) cover the expected range of the process variation of the characteristic.

Analyze using X & mR charts:

 Determine measurement system stability:
 Compare the plotted points to the control limits
 Look for trends (x chart only)

Compare * (total measurement error) with the repeatability estimate E from a variability study .


 Determine the bias if reference value is known:

source of Stability Studies : Analysis of measurement systems

Post Author: ghaemi mohammad

This site has been established to provide updated and specialized information in the field of quality management systems and to share my experiences in the field of conformity assessment and promotion and promotion of this science.

Leave a Reply

Your email address will not be published. Required fields are marked *