Laser Micrometer

Collimated Measurement Area
Converging Beam After Measurement Area
Converging Beam near Photodiode
Power Supplies & Measurement Equipment
DVM & O-Scope
DVM measuring frequency. Oscilloscope pulse measurement

First data set measuring drill bits
The scanner appears to have a little instability in the RPM, creating a small pulsation of the data. Therefore the data is somewhat noisy. Some investigation will be done on the polygon scanner and maybe try another polygon laser scanning unit.
Dataset #2
This set shows some non-linearity of the larger diameter parts. This is likely due to non-optimal collimation of the test area. The pulse width is measured by a duty factor measurement on a DMM. A true millisecond pulse width counter would help discriminate the noise better.