Hello all,
It's me again. I need help, as always (I'm a begginer with labview and I'm trying to learn by myself).
I got a problem with a software I need to develop for my work: I'm trying to acquire data (vibration) from an accelerometer in order to determine the vibration frequency of an object. Here is the deal: I put my accelerometer on the objet I want to determine the vibration frequency then I excite manually the objet by hitting it and ideally, I record the wave once I hit the objet for a certain period.
My question is then: how can I do that, especially the part about recording from the moment I hit the object for a certain period. For the record, I use a NI USB-9234 with a USB-9162 carrier.
After some digging, I wanted to use a trigger function, the source for the start analog edge would be then the same that the physical channel recorded with a trigger level defined. But, first of all, I don't know if that kind of manipulation is possible. And second of all, apparently, if my USB-9234 card is in a USB carrier, it can not be triggered in hardware (I found this information on the forum). So is that true ? And if so, what can I do to meet the requirements for my software ? I heard about using a software to acquire data over a period of time then parse the desired signal in post processing...
If someboy can help me, that would me mucho appreciated!
Thanks in advance anyway for any answer.
Cheers
