Multifunction DAQ

cancel
Showing results for 
Search instead for 
Did you mean: 

Voltage Output device recommendation to emulate sensor waveforms

Hello,

 

I am looking for a device that I would be able to connect easily to a PC to obtain 8 custom waveforms that output simultaneously. This can be achieved with multiple of the same device if they don't have 8 output channels but can still output simultaneously through LabVIEW or an external trigger (preferably as easy as doing it in LabVIEW). External circuitry will be used to attenuate the signal to achieve a more accurate resolution as most (if not all?) devices NI offers are +/- 10V 16 bit at output and steps of 305μV would not be accurate enough for my application (and I won't require the full +/- 10V range)

 

The end device should be portable enough that the LabVIEW code and device can interface with any PC, as it will be moved around to multiple different DAS devices. 

 

Some modules I've considered are multiple NI 9263 or 9269, or I've also considered the PCIe-6738 but I'm unsure if custom building an entire PC around the PCIe-6738 (in order to obtain the necessary portability) is feasible or even possible to meet ECI and CE standards. 

 

Thanks for any help, can provide more information if needed. 

0 Kudos
Message 1 of 5
(625 Views)

You have not described your sampling rate requirement and duration of waveform.

 

BTW, if all that you need is a arbitrary waveform generator, there are several in the market which are designed to exactly that, and some even work without an external computer. Search for 8 channel AWG

Santhosh
Soliton Technologies

New to the forum? Please read community guidelines and how to ask smart questions

Only two ways to appreciate someone who spent their free time to reply/answer your question - give them Kudos or mark their reply as the answer/solution.

Finding it hard to source NI hardware? Try NI Trading Post
Message 2 of 5
(603 Views)

The waveforms would be custom based on samples pulled from a .csv file and output from the device all using LabVIEW. The signals that are being emulated are 20kHz for 2000 samples, so the duration would be 0.1 second and all 8 channels would need to output these samples simultaneously.

0 Kudos
Message 3 of 5
(594 Views)

What is your application? how do these signals look like?

 

Generating audio/vibrational signals is widely different from generating arbitrary waveform.

Santhosh
Soliton Technologies

New to the forum? Please read community guidelines and how to ask smart questions

Only two ways to appreciate someone who spent their free time to reply/answer your question - give them Kudos or mark their reply as the answer/solution.

Finding it hard to source NI hardware? Try NI Trading Post
0 Kudos
Message 4 of 5
(558 Views)

The intention is to emulate sensor waveforms with a high degree of accuracy, the waveforms look like this:

 

tareyes_0-1695399348028.png

 

0 Kudos
Message 5 of 5
(554 Views)