06-17-2022 02:36 AM
Hi,
I am doing a project which involves 2 different sensors with different Sampling Rates.
My Encoder needs a Sampling Rate of 6.25MHz & my analog sensors needs 100KHz Sample Rate.
Can someone please Guide me how to select a suitable NI Hardware(PCI/DAQ)...!!!
06-17-2022 06:49 AM
Assuming that the encoder can be interfaced by a counter and that the number of analogue signals is limited, a multifunction I/O device will be suitable. As the sampling frequency of the analog inputs of the following cards depends on the number of channels, these models are suitable for 100kHz acquisition:
≤ 2: PCIe-6321
06-18-2022 07:12 AM
Hi,
Thank You for the suggestion.
Will the Encoder Sampling Rate be achieved (6MHz)..?
If i connect it to a 8 channel DAQ/CDAQ, can each channel acquire data in different Sampling Rate...?
06-20-2022 01:42 AM
Before choosing a multiplexed input DAQ, have a close look at the specification (settle time error) and check if your signal sources are low impedance.
I had too many problems with such cards while reading multiple channels, so I always try to avoid multiplexed inputs and choose simultainious sampling DAQ.