13 Nov
2012
13 Nov
'12
12:50 a.m.
Hi John,
The uber chopper can be made to chop faster than 10 Hz
with more
current--please consider whether you want to push that more. Of course
the point of it is higher S/N, and there is probably little 1/f penalty
between 10 and 18 Hz, so somewhat slower rasters as a way to add more
integration time may be just fine.
Colin thought that 24V was the max for the motor. We are currently running it at 28V.
There was an assumed voltage drop, but that voltage drop was not measured. We could go up
and measure the voltage drop and possibly tweak it higher, but we do not see gaining more
than 1-2 Hz.
-Zak