What is monitored:

• 16k,70k, and case temperatures
  
• voltages: gate, drain, and lnadrain
• drain current
• vacuum pressure

Acquiring  the data:

• Program to read the labjack:
• /share/megs/phil/svn/aosoft/p12m/wbrcvr/monctl/p12mrcvm.c
• binary:/share/megs/phil/svn/aosoft/bin64/p12mrcvm
• Note that binary needs to run on a computer that has /usr/local/lib/libLabJackM.so
• The binary runs on galfas2 (started from rc.local)
• Note: till the rcvr is installed, the program is run on megs3.
• It reads the data every 3 seconds.
• When reading the data:
• it loops  50 times on each value computing the average.
• The output data goes to:
  
• /share/phildat/rcvm12m/
• current month: rcvm
• previous months: rcvm.yymm
• the current file is moved to the .yymm file at the start of each month (if i remember:)
• A data record consists of :
• typedef struct {
      char    key[4];     /* "12m" null terminated*/
      int     year;       /* 2023*/
      double  day;        /* daynum of year and fraction of day ast*/
      float   ptorr;
      float   t7Temp;   /* case temperature of labjack*/
      float   temp1;
      float   temp2;
      float   vgate[2];  // volts
      float   vdrain[2]; // volts
      float   idrain[2]; // milli amps
      float   vdrainlna[2]; // volts
      } P12M_RCVMON_DATA;
• Each rec is binary (little endian) with a length of 64 bytes.
  

Looking at the data:

• The data can be read and displayed  with the idl  12meter rcvr monitoring routines:
• There are also standalone programs to monitor the data:
  
• monrcv12 - display last 5 measurements in a text window
• uses
•  rcvMonGet12.c to read the data from the current file
• This write the ascii output to stdout
• a tclsh program grabs this data and displays it in a window.
  
• monrcv12pl: graphically monitor a value from the current day:
• monrcv12pl -h for a list of args
• It starts idl and call rm12mon  to plot the data (depending on the keywords used on the call).
  

    Daily, monthly, and yearly plots are made daily:

• They are run by a cron job on megs3 (under user phil)
• /share/megs/phil/x101/dwtemp12/dwtemp12daily.sc  is the script that is run by the cron job
• It is usually run at 6am each morning. There are 3 separate plots:
• last 2 days (current and previous)
• The plots are autoscaled to min,max for each plot
  
• last 30 days.
• Plots have a fixed vertical scale
• data smoothed to 1 hour resolution
  
• year to date.
• Plots have a fixed vertical scale
• data smoothed to 1 hour resolution.
  
• Each page has 2 columns of 4 rows:
• upper left: 16K diode temperature (degK)
• 2nd left: 70K diode temperature (degK)
• 3rd left: labjack case temperature (degC)
• bottomLeft: Vacuum pressure (milliTorr)
• Upper Right: gate voltage: black polA, red polB (volts)
• 2nd right: Drain voltage: black polA, red polB (volts)
• 3rd right: Lna voltage: excludes voltage drop across bias wires.
• bottom right: Drain current (milliamps). black polA, red polB
  

Notes:

2022:

•  7dec22: started monitoring. receiver is in the lab.
  

 home_~phil