|SAMPLE||COATING THICKNESS||STANDARD DEVIATION|
|Unground plunger||67 µm||Ø 3 µm *|
|Finished plunger||50 µm||Ø 0.3 µm *|
|Control of the measurement system variation by repeated measurements on a single measurement spot||0.03 µm|
Measurement results of a quality inspection * 10 readings taken on different measurement spots per sample.
The DUALSCOPE® FMP100 and FGAB1.3 probe are employed in conjunction with a V12 BASE stand, which makes it possible to replicate the measurement procedure with consistent probe positioning and angle. This minimizes operator influence and produces extremely repeatable results, as shown in Table 1: The standard deviation for the measurements of the coating after grinding is, on average, just 0.3 µm, and the variation of the entire measurement system itself is only 0.03 µm, which is negligible. Therefore the measurement device capability even for the required tight tolerances is fulfilled.
The DUALSCOPE® FMP100, together with the probe FGAB1.3 and the stand V12 BASE, forms a reliable control system that can precisely and accurately measure NiP coatings on automotive components with minimal variation. This allows both monitoring of quality specifications and adherence to very tight tolerance limits – and therefore, the avoidance of potentially costly warranty claims. For further information please contact your local FISCHER representative.