03-13-2020 03:24 PM
Hello! I need a suggest about DAQs. For a project we need minimum 8 channels data acquisiton board. These channels may be used for generating analog signals. We have SCB-68E and 6221 DAQ. But when we acquire two different signal, we can not arrange two different sampling frequency. So we need a DAQ and usb i/o board to acquire signals different sampling frequency. For example, i may generate 1KHz sinus signal, record temperature sensor data with 1 Hz and record accelerometer sensor data with 200 Hz in the same time. Can you suggest me a National instruments product for this purpose?
06-30-2020 04:43 AM
Anybody wants to help?
06-30-2020 05:54 AM
You might want to look at using cDAQ. A single chassis can have multiple acquisition clocks, so read the specifications carefully to find one that will work for you. But first, look at the modules to determine what modules and how many you will need.
06-30-2020 09:07 AM
@m.serdar wrote:
Hello! I need a suggest about DAQs. For a project we need minimum 8 channels data acquisiton board. These channels may be used for generating analog signals. We have SCB-68E and 6221 DAQ. But when we acquire two different signal, we can not arrange two different sampling frequency. So we need a DAQ and usb i/o board to acquire signals different sampling frequency. For example, i may generate 1KHz sinus signal, record temperature sensor data with 1 Hz and record accelerometer sensor data with 200 Hz in the same time. Can you suggest me a National instruments product for this purpose?
What is the generation part??
However.. Just configure the input ranges and output ranges .. use the max sample rate you need for one task.
For reading :Use a producer-consumer scheme and decimate the channel data that 'need' lower sample rate....