triggering on USB-9215A

[uÖzkan]

Hi

I wonder that to trigger the USB-9215A daq card is there any way.

Because i want to measure pressure with piezoelectic sensor but pressure value don't occure immediatly . Time is passing from triggering moment to pressure measurment. So that to measure ignation time i need to trigger the card

[Margaret F.]

Hello,

Thank you for posting to the NI forums. It sounds like you just need an example that demonstrates how to use an analog trigger. If you are using LabVIEW, you can go to Help>>Find Examples. When the Example Finder opens, double click on Hardware Input/Output>>DAQmx>>Analog Measurements>>Voltage>>Cont Acq&Graph Voltage-Analog Software Trigger.vi. You can read a small description of the example by single clicking on it in the Example Finder and looking at the right-hand side of the screen. In this example you can specify a number of pre-trigger samples to acquire. This may not fit your application exactly, but it should be a good starting place.

[uÖzkan]

Everything is Ok but i wonder that another thing is if the trigger method is digital and i have current signal as analog can i trigger this card. Is it possible

[Margaret F.]

Hello,

The USB-9215A only has 4 analog input channels, so there are not any PFI lines to trigger with. I think that your best bet for triggering will be to look at the example that I posted in my last post to use an analog edge as a trigger. Hope this helps!