01-24-2018 10:37 AM
Hi All,
I am currently trying to connect an ADXL337 Accelerometer to either a NI 9219 or a NI 9237. I was able to connect to the NI 9219 but was unable to get the sampling rate of 10kS/s that i need. I have been attempting to connect to the NI 9237 but it appears the output range available is too small for my application. Is there a way to connect this device to either of these two cards and get the data i need or is there another card that I should invest in that would give me better results?
Here is a link to the Data Sheet for the Accelerometer.
http://www.analog.com/media/en/technical-documentation/data-sheets/ADXL337.pdf
01-25-2018 05:18 PM
I'd recommend taking a look at the datasheets for those two products:
NI 9219: http://www.ni.com/pdf/manuals/374473a_02.pdf
NI 9237: http://www.ni.com/pdf/manuals/374186a_02.pdf
For the NI 9219, the sample rate is 100 S/s/channel of simultaneous measurements, so you're right that you won't be able to use a 10k S/s sample rate.
The NI 9237 has a +/- 25 mV/V input range. If this is too small for your application you will likely need to purchase a different product.
It sounds like you'd probably need to purchase another card that matches your accelerometer specs. I'd get in contact with a technical sales representative at NI to discuss this.