| Variables | sample size | The number of samples of focus data taken. |
| Description | Records 'sample size' measurements of the focus PSD sum, PSD difference, error, LVDT primary, LVDT secondary and lens position, then computes and displays the mean, standard deviation, min, and max of the sample. The output of a 'foc sample 100' command may look like the following (the values are displayed in their appropriate units): | |
PSD Sum: Mean= -0.05 Std= 0.02 Min= -0.10 Max= 0.00 mV PSD Diff: Mean= -0.04 Std= 0.27 Min= -0.67 Max= 0.48 mV Focus Error: Mean= 36.80 Std= 486.25 Min= -500.00 Max= 500.00 um LVDT Primary: Mean= 2516.69 Std= 0.10 Min= 2516.36 Max= 2516.88 mV LVDT Secondary: Mean= -59.05 Std= 0.05 Min= -59.17 Max= -58.94 mV Lens Position: Mean= 100.01 Std= 0.08 Min= 99.82 Max= 100.22 um | ||