Temperature sensors

 Inside dome on rotary floor.  (top)

• The rotary floor temperature sensor is between the two if/lo cabinets.
• It is read every 10 seconds using the hp34401 (left iflo chassis?).
  
• Software
• The program to read the data runs on the da computer: monTemp.
  
• the mcp window on the da computer can query the temp with the tcl proc montemp().
  
• The source code is in ~phil/vw/datatk/mon/monTemp.c
• The data is written to /share/obs4/temp.dat.
  
• The data output format is:
• 4 byte int   dddsssss  *daynumber of year and second of day
• 4 byte float (temperature in deg C)
• At the end of each year, the temperature data is moved to /share/obs4/temp/Y0x/temp.dat
• Offline programs:
• ~phil/vw/datatk/mon/dumpTemp.c will dump a file to ascii
• ~phil/ve/datatk/mon/tempSel.c .. select a range of days from the file
• idl: gen/tempread.pro, gen/tempplot.pro   read and plot temperatures.
• The temperature in the dome is plotted each day and can be found on the web site http://www.naic.edu/~phil, --> Gregorian receiver room temps.
  
• There is a switch in front of the hp34401 that switches the hp34401 input between the temperature sensor and one of the tilt sensors.
  
• The switch is controlled by one of the bits in the hp3488.
  
• The Tcl routine montilt will switch the input to the tilt sensor and kill the program monTemp (see helpdt montilt). montilt must be run in the tcl window on the da computer.
• When you are done with the tilt sensor measurements you must restart the monTemp program (rsh da monTempStart).

Platform temperature sensor  (top)

• The temperature sensor is located near the wind meter.
• It is read by the laser ranging software once every 2 minutes and is stored in the laser ranging datafiles.
• The platform temperature is plotted daily and can be found on: http://www.naic.edu/~phil  --> platform temperature.

Temperature sensor in vertex shelter  (top)

• Installed in vertex shelter jan08
• ip address 192.168.100.214