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40m Log |
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Wed Jan 24 13:55:04 2018, Kira, Summary, PEM, Seismometer can insulation test 6x
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Thu Jan 25 12:41:18 2018, Kira, Update, PEM, Seismometer can insulation test
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Thu Jan 25 14:58:20 2018, Kira, Update, PEM, Seismometer can insulation test
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Thu Jan 25 16:39:09 2018, Kira, Update, PEM, Seismometer can insulation test
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Thu Feb 1 16:09:13 2018, Kira, Update, PEM, Seismometer can insulation test
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Mon Feb 5 12:12:41 2018, Kira, Update, PEM, Seismometer can insulation test
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Wed Feb 7 12:35:56 2018, Kira, Update, PEM, Seismometer can insulation test
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Wed Feb 7 17:01:25 2018, gautam, Update, PEM, PID test plan    
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Wed Feb 7 19:14:19 2018, rana, Update, PEM, PID test plan
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Thu Feb 8 12:24:37 2018, Kira, Update, PEM, PID test plan
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Thu Feb 8 17:32:44 2018, Kira, Update, PEM, PID test plan   
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Fri Feb 9 15:29:32 2018, Kira, Update, PEM, PID test plan
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Thu Feb 15 16:03:57 2018, Kira, Update, PEM, PID test plan
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Thu Feb 22 16:16:43 2018, Kira, Update, PEM, temp sensor input
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Mon Feb 26 16:22:10 2018, Kira, Update, PEM, temp sensor input  
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Wed Feb 28 12:31:28 2018, Kira, Update, PEM, temp sensor input
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Fri Mar 9 12:59:53 2018, Kira, Update, PEM, ADC noise measurement 
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Mon Mar 26 16:10:33 2018, Kira, Update, PEM, final setup sketch   
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Wed Apr 18 12:18:39 2018, Kira, Update, PEM, final setup sketch 7x
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Wed Apr 18 16:59:35 2018, rana, Update, PEM, final setup sketch: EX Seis
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Thu Apr 19 11:29:11 2018, rana, Update, PEM, PID tune
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Mon Apr 23 20:06:35 2018, rana, Update, PEM, PID tune
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Thu Apr 26 19:46:26 2018, rana, Update, PEM, PID Quixote
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Tue May 1 11:15:19 2018, Kira, Update, PEM, PID Quixote
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Tue May 1 15:23:18 2018, Kira, Update, PEM, new ADC channel setup issue
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Thu Apr 19 12:23:30 2018, Kira, Update, PEM, final setup sketch update 
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Thu Apr 19 18:23:51 2018, Kira, Update, PEM, final setup sketch update
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Fri Apr 20 15:07:45 2018, Kira, Update, PEM, final setup sketch update
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Thu May 24 16:08:12 2018, Kira, Update, PEM, parts list
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Tue May 29 16:22:43 2018, Kira, Update, PEM, parts list  
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Wed Jun 6 15:12:29 2018, Kira, Update, PEM, parts from lab  
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Mon Jun 18 11:12:23 2018, Kira, Summary, PEM, finishing up work at the lab  
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Tue Apr 24 09:10:20 2018, Kira, Update, PEM, final setup sketch
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Mon Apr 30 15:36:18 2018, Kira, Update, PEM, final setup sketch
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Tue May 8 10:24:10 2018, Kira, Summary, PEM, plan for this week
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Fri May 11 11:47:33 2018, johannes, Summary, PEM, Acromag issues
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Tue May 15 15:13:23 2018, Kira, Summary, PEM, Acromag issues
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Thu Mar 15 17:33:56 2018, Kira, Update, PEM, test setup
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Tue Mar 20 16:56:01 2018, Kira, Update, PEM, test setup 
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Tue Mar 20 19:48:10 2018, gautam, Update, PEM, test setup
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Fri Mar 23 12:00:20 2018, rana, Update, PEM, test setup
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Fri Mar 23 12:45:08 2018, Kira, Update, PEM, test setup
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Thu May 17 15:38:19 2018, Kira, Update, PEM, test setup with seismometer   
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Fri May 18 14:33:34 2018, Kira, Update, PEM, test setup with seismometer
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Mon May 21 14:17:28 2018, Kira, Update, PEM, test setup with seismometer
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Tue May 22 14:49:03 2018, Kira, Update, PEM, test setup with seismometer
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Wed May 23 14:50:33 2018, Kira, Update, PEM, test setup with seismometer 
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Thu May 24 15:18:12 2018, Kira, Update, PEM, PID loop restarted
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Thu May 31 15:48:16 2018, Kira, Update, PEM, running PID script with seismometer
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Mon May 21 10:15:35 2018, gautam, Update, PEM, test setup with seismometer
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Wed Feb 28 21:14:34 2018, gautam, Summary, PEM, Channel admin
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Tue Mar 27 11:11:16 2018, Kira, Update, PEM, Channel setup
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Thu Mar 29 17:14:42 2018, Kira, Update, PEM, PID test
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Fri Mar 30 06:16:45 2018, rana, Update, PEM, PID test
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Fri Mar 30 16:10:46 2018, Kira, Update, PEM, PID test
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Wed Apr 4 16:23:10 2018, Kira, Update, PEM, PID test  
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Fri Apr 6 16:17:20 2018, Kira, Update, PEM, PID tuning
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Fri Apr 6 18:28:57 2018, rana, Update, PEM, PID tuning
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Mon Apr 9 16:30:21 2018, Kira, Update, PEM, MEDM setup
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Tue Apr 10 15:42:08 2018, Kira, Update, PEM, MEDM setup
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Thu Apr 12 10:15:33 2018, Kira, Update, PEM, MEDM setup
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Fri Apr 13 00:20:46 2018, rana, Update, PEM, MEDM setup
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Message ID: 13618
Entry time: Wed Feb 7 17:01:25 2018
In reply to: 13614
Reply to this: 13619
13684
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Author: |
gautam |
Type: |
Update |
Category: |
PEM |
Subject: |
PID test plan |
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[kira, gautam]
We did a survey of the lab today to figure out some of the logistics for the PID control test for the seismometer can. Kira will upload sketches/photos from our survey. Kira tells me we need
- +/- 15V for the temperature sensors
- +/- 20V, 5A for heater circuit (to be confirmed by Kira after looking at voltage regulator datasheet for dropout voltage)
- 2 ADC channels for temperature sensing (one inside can and one outside)
- 1 DAC channel for controlling MOSFET
There are no DAC channels available in the c1ioo rack. In fact, there is a misleading SCSI cable labelled "c1ioo DAC0" that comes into the rack 1X3 - tracing it back to its other end, it goes into the c1ioo expansion chassis - but there are no DAC cards in there, and so this cable is not actually transporting any signals!
So I recommend moving the whole setup to the X end (which is the can's real home anyways). We plan to set it up without the seismometer inside for a start, to make sure we don't accidentally fry it. We have sufficient ADC and DAC channels available there (see Attachments #1 and #2, we also checked hardware), and also Sorensens to power the heater circuit / temperature sensing circuit. Do we want to hook up the Heater part of this setup to the Sorensens, which also power everything else in the rack? Or do we want to use the old RefCav heater power supply instead, to keep this high-current draw path isolated from the rest of our electronics?
If this looks okay (after pics are uploaded), we will implement these changes (hardware + software) tomorrow.
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I have attached the sketch of the whole system (attachment 3) with all the connections and inputs that we will need. Attachment 4 is the rack with the ADC and DAC channels labeled. Attachment 5 is the space where we could set up the can and have the wires go over the top and to the rack. |
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