Laser Micrometer Layout

Laser Micrometer Layout-Labeled

Output Beam

Scanned Laser Beam

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.

Updated Layout