A Type 1 Gage study is used to evaluate the bias and repeatability of a measurement device by repeatedly measuring a known reference sample a number of times. By comparing the measurements recorded to the reference, we can evaluate the bias and repeatability of the measurement system. This can be compared to the tolerance to check if the variation in the measurement device is small enough to be acceptable.
In this study, we will look at measurements on fill volumes. A known volume of 15 ml is measured 20 times. The specifications for the process are 14.25 and 15.75. The worksheet Type 1 Gage.mtw
contains 20 measurements on this syringe in the Measure
column.
Open the worksheet
Type 1 Gage.mtw
by using Open Worksheet… from the File menu.Navigate to Stat | Quality Tools | Gage Study and click on Type 1 Gage Study.
Enter
Measure
in the Measurement data field.Enter
15
in the Reference field.Under Tolerance, enter
1.5
in Upper spec - lower Spec.Click on...