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NCAR / WVD-MCSupdate

Addition of NCAR MCS, rewrite to software infrastructure, and expansion of features for WVD operations.
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improve seed locking speed – add PID control #20

Closed BradSchoenrock closed 3 years ago

BradSchoenrock commented 7 years ago

On 9/1 Scott Spuler asked via email -

2.) improve seed locking speed – add PID control

Could you explain seed locking? I'm afraid i'm unfamiliar with this.

All of the seed lasers need to be maintained at a specific wavelength. They are measured with the wave-meter and adjusted as needed. The seed laser temperature is adjusted by a fixed step size and then wavelength checked until it is within tolerance. This needs to be changed to a PID control for faster response time.

Will need follow up to address...

Brad Schoenrock

BradSchoenrock commented 7 years ago

marked wontfix until actionable followup.

Brad Schoenrock

BradSchoenrock commented 7 years ago

It has since been discovered that seed locking also halts other processes in WVDial2 software such as data collection. This should not be desired behaviour.

BradSchoenrock commented 7 years ago

http://www.ni.com/white-paper/6440/en/

Link to PID control for reference