Measurement device monitoring for the Fischerscope X-RAY
Pre-run for determining the control limits
108
FISCHERSCOPE
®
X-RAY
The limit values calculated in this manner are accepted into the
quality control chart and serve the purpose of deciding whether the
measurement application must be corrected or not. Violation of the
upper or of the lower control limit means that a control correction of
the measurement application is required. The WinFTM software of
the Fischerscope XRAY facilitates (like its predecessor program
FTM for DOS) the set-up of products using quality control charts
specifically for monitoring the measurement devices and to
calculate the control limits automatically from the pre-run.
Example of a pre-run
10 groups, each with 5 measurement readings, have been
measured under repeatability conditions using a nickel-plated and
copper-plated reference sample (substrate material iron). For this
purpose, the number of single readings per group (in the ”Figure”)
is set to a fixed number (here n=5) in the product ”Ni/Cu/Fe
reference sample 10-245”.
We recommend entering the measurement data of the above pre-
run in a quality control chart (SPC chart) for each feature (here for
the nickel and the copper thicknesses). The purpose of the pre-run
is to calculate the control limits. They are graphically drawn into the
control chart as lines and correspond to the limit values that lead to
a correction if they are violated during subsequent measurements.
The final protocol of the pre-run generated with the WinFTM-PDM
software at the actual reference sample Ni/Cu/Fe 10-245 shows
beneath the group numbers (designated with "n
bl
"), the group
results (mean values Ni. and Cu. per group, standard deviation s
per group), the final result, the control limits as well as the control
charts for the nickel coating and for the copper coating:
Helmut Fischer GmbH Office West
Danziger Straße 1050374 Erftstadt
Tel.: 02235 41447Fax: 02235 922990
Fischerscope
®
XRAY Final protocol
___________________________________________________
Product:
Ni/Cu/Fe reference specimen 10-245
Folder:
ISO9000
Meas. application: Ni/Cu/Fe
Meas. mode:Dual coating (dd_)
Order:Pre-run
Содержание FISCHERSCOPE X-RAY 5000 Series
Страница 18: ...18 FISCHERSCOPE X RAY Switching the Instrument on and off Communication between Instrument and WinFTM...
Страница 22: ...22 FISCHERSCOPE X RAY Performing Manual Measurements Deleting Measurement Readings...
Страница 36: ...36 FISCHERSCOPE X RAY User Interface of the WinFTM Software The Spectrum Window...
Страница 40: ...40 FISCHERSCOPE X RAY WinFTM File Structure Product...
Страница 112: ...Measurement device monitoring for the Fischerscope X RAY Long term monitoring 112 FISCHERSCOPE X RAY...
Страница 118: ...118 FISCHERSCOPE X RAY Def MA Display the Measurement Mode...
Страница 124: ...124 FISCHERSCOPE X RAY Calibration...
Страница 142: ...142 FISCHERSCOPE X RAY Addendum Periodic Table of the Elements with X Ray Properties...
Страница 156: ...156 FISCHERSCOPE X RAY Addendum Assignment of the Electrical Connections...
Страница 182: ...182 WinFTM WinFTM SUPER For the Experienced X RAY User Comparative Overview with without WinFTM PDM...
Страница 183: ...WinFTM 183...