During a type 1 study, it is checked whether the actual value of a reference object can be measured repeatedly, with sufficiently small deviation. The resolution of the measuring device is also checked.
Accordingly, the following information is required in the standard:
The specification limits, the resolution and the actual value of the normal, as well as the repeated measurements:
Specification limits:
These are the specification limits of the characteristic to be measured later, even if the repeat measurements for a method 1 are not carried out on the real component, but on a reference object.
Actual value:
The actual value is the value specified on the calibration certificate (assuming classic “Normal's”).
Resolution:
The resolution is the smallest readable change in the display value. With a classic caliper with digital display, it is the smallest digit that can change. For measuring machines whose values are calculated from “point clouds”, there is a discussion as to whether the artificial resolution (which only results from the reduction in output) should be taken into account.
Measured values:
During data acquisition, care should be taken to ensure that the reference part does not remain in the measuring device but is removed from the measuring device and reinserted before each measurement. This “measuring device” can also be the hand of the operator who picks up the reference part in order to measure it.
Basic Analysis
Main analyze is done with Form 3 and the value chart. On the Form 3 the used formulas can be seen for the calculation, the activated requirements in the line where the "Smiley" is shown. The limits shown in the value chart are taken from the formula of the Cg value.
