40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  Coating Ring-down Measurement Lab elog  Not logged in ELOG logo
Message ID: 275     Entry time: Tue Jan 24 11:45:55 2017
Author: Gabriele 
Type: Electronics 
Category: Configuration 
Subject: Picomotor drivers 
  • Changed the library Picomotor8752.py to add a third axis 'r' that will allow moving the in-vacuum retaining ring. The controller remains connected to the workstation through a serial cable
  • Tested a new NewFocus 8741 controller with USB and ethernet. The USB driver works only on Windows, so I tested it by running a Windows virtual machine. I used this trick to get the IP address of the controller. Then I wrote another library Picomotor8742.py that uses TCP/IP sockets to communicate with the driver via ethernet. Tested and working. Each driver can control up to four axis, so the user can choose which QPD centering mirror to move (1/2 or 3/4) and which axis (x or y)
ELOG V3.1.3-