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nthallen / keutsch-hcho

Data Acquisition for Harvard Keutsch Group Formaldehyde Instrument
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Ability to Automatically Adjust THG (Serial Laser Control) #1

Closed jdshutter closed 6 years ago

jdshutter commented 6 years ago

Instead of having to manually change the THG value, it would be nice to have serial control of the laser to allow for greater instrument autonomy. THG correction is highly useful since we want the online and offline positions to have the same laser power.

THG Correction (Two Scenarios)

Scenario 1: For an offline delta shift equal to a positive integer: If online power > offline power, then THG should increase If online power < offline power, then THG should decrease

Scenario 2: for an offline delta shift equal to a negative integer: If online power > offline power, then THG should decrease If online power < offline power, then THG should increase

The magnitude of THG correction is generally on the order of 0.01 deg C.

nthallen commented 6 years ago

Baudrate: 38.4 K

Command:

WTHGxxxx xxxx = 2500 = 25.00C (3000 only)
LN Laser On
LF Laser Off

To request status:

S15 xx.xx C THG Temperature (3000 only)
jdshutter commented 6 years ago

Tested and working