Do you have the signal processing toolset?? There is a denoise and
detrend vi that does some really neat processing on the data. Do you
have labview 7?? There is a math function express vi in it that does a
differential processing on the signal. This turns slope changes into
large spikes. Perhaps running the differential process on the result
of the denoise vi would work. I have a version of the differential
processing that I converted into a 6.1 version. I could send this file
when I get to work in the morning.