Masking The Evaluation Range; Exposure Mode - MICRO-EPSILON interferoMETER Operating Instructions Manual

Advanced Settings
7.2.2

Masking the Evaluation Range

With the interferoMETER, the user can set an individual evaluation range.
The evaluation range can be selected in the Settings > Data recording > Evaluation range menu.
Masking limits the range that the FFT uses for distance or thickness measurement.
This function is used to mask the background, if it extends into the measuring range.
Evaluation range
Masking (start of range/end of range) is entered into the two boxes on the left (in %).
i
If you limit the evaluation range, a peak is detected only if it is completely within the evaluation range and above the
threshold. This might reduce the measuring range.
Masked area
1
Fig. 38 Limiting the used FFT signal
The example shown in the figure uses the peak (2) for the evaluation, while peaks (1) and (3) are not used.
Set the desired evaluation range.
7.2.3

Exposure Mode

With the interferoMETER, the exposure mode can be set.
The specified or appropriate measuring rate is maintained and only the exposure time is controlled. A smaller control
range is used to achieve faster results. Differently reflecting targets can also be measured using the same measuring
rate here.
Grey shaded fields require a selection.
IMS5x00
Start of range in %
End of range in %
Evaluation range
2
Value
Value
Masked area
Value
Fields with dark border require entry of a value.
3
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