Following our work in the PSL enclosure this morning (alog from Jason soon to come), I calibrated the PSL rotation stage since the output of the new PMC had again changed slightly.
The process this time had just a couple of hiccups (steps taken listed in alog74597). For starters, the MoveRotationStage.py script had somehow had its contents deleted last week and was robo-committed to svn that way, so I needed to revert it to the previous revision. Also, I'm not sure how I haven't noticed this before, but Jason pointed out while the rotation stage was stepping through each angle, the maximum power out did not line up exactly with one of the preset angles on the stage, so the maximum power stated by the script is not accurate. I'll think about how to rework thse scripts to produce a more accurate calibration curve.
Power in (W) | D | B (Minimum power angle) | C (Minimum power) | |
Old Values | 102.488 | 1.990 | -24.801 | 0.000 |
New Values | 97.882 | 1.990 | -24.818 |
0.000 |