Is it possible to take high-speed capture from three axes at the same time?

[Matthew T]

Hi,

I have three linear stages and I send the same trigger input to all of them. I wondered that is it possible to capture each axes positions at the same time. There is an example in Labview (Buffered High-Speed Capture.vi) which takes high-speed capture of one axis and it works fine. However, I need the positions of all the three axes. I'm using PXI-7350.

Yours, A

[Matthew T]

Here is the VI that I tried to use in my measurements. The VI acts very weirdly: it seems to capture a position of one axis at the time when it should capture positions for each axis simultaniously. The axis where the position is captured changes randomly. Like there would be some kind of competition between the buffers. The total amount of captured positions is often 10 which is the size set for each buffer. However, total amount is not always 10 but it can be sometimes less or more. Somehow the buffers stop getting data in the them.

The same trigger pulse is used for each axis. I use a UMI-7764 where I set the triggers to go to Trigger Input Terminal Block. Again, this works fine in one dimension but not with two or three motors.

Please help me,

Adddad

[Matthew T]

Is there really no one out there who can help me with this problem?

Matthew