How do you derive velocity and position from acceleration data?

[saddiq]

hiiiiii can i get the finally   block diagram becouse i has same problem 

[johnr4]

Hello Saddiq,

Hopefully, someone from the NI community will respond to this post.  However, it is an old post which decreases the chances of a response.  If you create a new discussion, you are more likely to receive help.  The following links don't provide VI's that do the exact functionality you are requesting, but they do something similar.  You may find them helpful.  Happy coding!

https://decibel.ni.com/content/docs/DOC-5143

https://lavag.org/topic/12866-velocity-curve-from-acceleration/

[penkesiva]

Hello Mr. Ali,

I understand this post is very old but I'm very curious to know how you actually solved this issue. Unfortunately, the link you posted is no longer available. Also, couldn't navigate on the website to the right example you mentioned. I actually have the following questions... could you kindly answer when you get some time.

* Is it at all possible to get a position to centimeter accuracy for an accelerometer alone with 1000Hz data rate?

* What is the numerical integration method you have used to solve this?

* If this integration library is part of LabView, does NI provides a C++ library for third-party integration?

Thanks

Siva Penke

[c-RADAE]

Hello Siva,

In regards to your first question your accuracy will depend first on how accurate your accelerometer is as well as how fast you are sampling because you will be doing a numerical integration. 

As far as your second question goes I am not sure exactly which integration technique was used in the original solution, but this is more of a mathematical question and you may have better luck finding an answer to that in a more general forum about the math involved in mechanics. 

In regards to the last question, NI may not have a library for this but because it is such a common case I am sure that you would be able to find a third party library to suit this need. 

Lastly, as John R. posted you will have better luck with a forum post if you post in a new discussion because this one is so old. Also you could look at this example that John posted as it may be similar to what you are looking for.

https://decibel.ni.com/content/docs/DOC-5143

Thanks for Posting!

Applications Engineer

National Instruments

[theres]

Sir, if you go on integrating values, won't the final result be a six digit or seven digit number? Can you clearly show how do you integrate for a particular limit so that the apt values are obtained?

[joaquinstevens]

it's possible to find this solution in another post? is no longer available at the address indicated, thanks a lot.