CAMAC Progress Report

                     Week Ending: January 25, 2002
                               Week: 52


Tom Folkers:
     1. No report.

Tom Sargent:
     1. Finished putting code into analog.c to monitor the motor 
        currents. If any motor current drops below a threshold 
        (currently 3% of Max) for more than 30 seconds it is reported 
        to monitor as an error. This is really just intended to catch 
        the case where a motor blows a circuit breaker.
     2. Began working on the sun avoidance software.  I worked out all 
        the geometry.  Significant changes in the slew algorithm will 
        be required to make it approximate a great circle path.  In 
        the case where the sun is in the way, it follows a path which 
        is a circle (intersection of a plane with a sphere) but not a 
        great circle.   It is desirable to have a 3-d perspective 
        plotting program to visualize the avoidance paths.  I may 
        write or get one of those.

Pete Hubbard:
     1. Testing the AD8571 amplifier gave results that are 29dB lower 
        noise then existing amplifier's that are used on the MPI 6000 
        boards. Switching to differential inputs from the encoders 
        eliminated  most of the 60HZ pickup.
     2. Made ribbon cable to BNC bulk head for control interface, used 
        in PC.

Dave Ashby:
     1. No Report.