Photos of noise observed at each of the AIDA PSU outputs by digital oscillscope.
DAQ GOing with waveforms enabled.
Connection from AIDA PSU to scope by DMM test probes, twisted cabling, 3mm jack plug/BNC adaptor.
Attachment 1,2,3 = +5V
Attatchment 4 = -6V
Attatchment 5 = +7V
Attatchment 6 shows test setup
Repeat above test with *all* cables from AIDA PSU to FEE64s disconnected, i.e. no AIDA PSU load.
Attachment 7,8,9 = +5V
Attatchment 10 = -6V
Attatchment 11 = +7V |