19 Apr
2002
19 Apr
'02
1:37 a.m.
Except that a real PDP-11 will probably be a good deal
more stable than a
PC. And how are PC's running windows at things like realtime data
acquisition?
Peace... Sridhar
Well, I have used WinNT4.0Workstation and Visual Basic 6 to obtain realtime
data from a board interfaced to a quadrature signal as a means of measuring
the height of gas turbine engine blades. It worked quite well, and I was
easily able to make 500 such measurements per second.
The board simply supplied the current value from the quadrature signal, and
in no way supplied a time base for capturing the value. The time base came
from the VB program.
William R. Buckley