04-07-2007 09:12 AM - edited 04-07-2007 09:12 AM
Message Edited by bjdyck on 04-07-2007 09:12 AM
Message Edited by bjdyck on 04-07-2007 09:13 AM
04-10-2007 01:01 AM
Hi,
Thank you for posting to the NI forums. What version of LabVIEW and the Order Analysis Toolkit are you using? Could you please post a small example of the code that you are using to produce this behavior?
Also, what type of device are you using to make these measurements?
As of now, I haven’t found much documentation on this type of analysis. But with some more information, I can try to reproduce the behavior that you’re seeing, and hopefully offer a solution or at least a workaround.
Ed W.
Applications Engineer
National Instruments
04-10-2007 08:24 AM
04-13-2007 11:13 AM
Hi,
It looks like you are using the Even Angle Reference Signal Processing (Analog Tacho, DAQmx).vi example program as the foundation for your program. But it seems that you’re using a separate device to generate the speed profile for the slow roll compensation. Although, it would be difficult to test this from here, I think this may be the source of the problem. Regardless of the quality of data that you receive, you should definitely acquire the same amount of data in both cases.
Could you try using a single device to perform the initial measurement and for removing the slow roll errors? This shouldn't require much reprogramming - just try opening the aforementioned example program that installs with the toolkit.
Best regards,
Ed W.
Applications Engineer
National Instruments
04-16-2007 09:14 AM