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User name saw

Log entry time 22:51:01 on July 31, 2010

Entry number 196492

This entry is a followup to: 196491

keyword=Exit window temperature

The exit window thermalcouple signal is very noisy (huge AC component.) So in order to try to reduce the noise, it has been sampled 10 times a second and then averaged every 200 samples. There is still a few degrees jitter in this averaged signal. I have been experimenting with other averaging schemes in the last hour or so, which is why the signal has been dropping out. I couldn't get anything else to work, so I just ended up changing the average window to 400 samples (40 seconds.)

For fun, look at these temperatures over a day. They both fluctuate by 2 degrees or so with a 4 hour period. Perhaps the AC cycle.






Exit window and Tungsten plug temperatures