Hello, I am filtering raw data then looking for the max/min of three channels, which is output to a file. The time stamp I want is from the first channel's max/min, but I want the actual max / min of the other two channels within a 100 samples of the first channel's max/min and not just the corresponding values of the first channel's max/min timestamp (we have some inertia information in our setup that we are trying to capture on these other two channels). To do this, I am using a Max/Min module for the three channels, with an additional TTL output on the first channel, that is run through a Sample Trigger module, and then the Latch module. This allows me to capture the Max/Min values for all three channels and output to one data file, when I have properly specified the hysteresis values in the Max/Min module, and specified the Sample Trigger to look for fewer than 100 samples and trigger at the start of the event. However, I am not getting the correct time stamp for the max/min of the first channel in my output file, it appears to be the time stamp of the data block in which this max/min occurs (the time stamp precedes the correct time stamp by 100 to 300 milliseconds). How do I get the correct time stamp for this task? I am using Windows XP Pro SP3, DasyLab 9.0.2 basic (yes, we'll be upgrading, but not this week 😉 . See attached worksheet for details.

Here's an example with a Generator. Use the *.DSA file to open in V9. I'm not 100 certain that it will retain all of the settings, but it's a good start. The *.DSB file is DASYLab 12.

DASYLab

Time stamp issue with latch

Solved!

Author

Nice! There's a lot of useful things I've gleaned from that worksheet, thanks for the help.

This avatar was scraped from an instance of good public spending: http://apod.nasa.gov

Message 11 of 11

(2,577 Views)

DASYLab

Time stamp issue with latch

Re: Time stamp issue with latch