Analog accelerometer ADXL335

[Ric@rdo]

Hello everyone!
 
I'm beginner user of LabVIEW and to be working with an MEMS analog accelerometer ADXL335. I'm using a Hardware USB NI 6008 for acquisition the vibration signals. The images show the simulation disturbance of beats on the substrate.
 
I have some questions and I need help:
 
The "Spectral Measurements" shows the signal in the frequency domain with its Harmonicas components (Hz)?
The peak between 0 and 2 (Hz) is the signal DC component and how can I remove it via software?
How can I integrate the signal to obtain amplitude values in speed?
 
 
Thank you!
 
 
José Ricardo

[Daniel.Parrott]

Welcome to LabVIEW!

I don't know if this is going to help, but I think most of your questions can be answered using LabVIEW Help. Be sure and enable Context Help (Ctrl + H) as it's pretty useful. 

1. Take a look at the help for the express VI you're using http://zone.ni.com/reference/en-XX/help/371361H-01/lvexpress/spectral_measurements/

2. Some of our Filter Express VI's should probably work for you http://zone.ni.com/reference/en-XX/help/371361J-01/lvexpress/signal_filter/

3. The integral functions in the Math palette should be what you're looking for http://zone.ni.com/reference/en-XX/help/371361H-01/gmath/integ_and_diff_vis/.

All of those links are a bit older I think (from LabVIEW 2011), but you can also find the newer versions just using the help files included with your version of LabVIEW or doing a quick google search. 

Hope that helps!

[Ric@rdo]

Hello

Thanks you helping me. I was using LabVIEW Academic in the College and this license does not include the filter function. I downloaded the evaluate version on the notebook and it was possible to remove the DC signal with a high pass.
I will study the integration of functions and shared links.

Thank you!

José Ricardo