Fft Signal; Measurement Chart - MICRO-EPSILON interferoMETER Operating Instructions Manual

Thickness Measurement
8.4

FFT Signal

If a target surface is outside the measuring range, the controller provides no measuring value. This might also happen,
if one signal is below the detection threshold. When measuring the thickness of a transparent material, two boundary
areas are active.
However, only one peak is visible in the FFT signal.
Thickness
Fig. 72 FFT signal web page (thickness measurement)
8.4.1

Measurement Chart

Change to the Measurement chart and choose the Meas type.
Fig. 73 Offline analysis of measured thickness results based on a one-sided thickness measurement
The thickness is displayed graphically and numerically on the web page.
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