Jump to content
43oh

How to measure speed with accelerometer?


Recommended Posts

Hello to everybody!

 

I'm trying to make program, that is capable of speed measurement only with data from accelerometer.

It is not a msp430 device, so there is no problem with program memory or CPU speed (I'm using 48Mhz freescale CPU).

 

Actually I can read data, store them etc. Only problem is that I don't know the way how to calculate speed precisely..

Maybe some numerical method of integration will be usefull. But at first I decided to ask for help if somebody of you did such thing as I want to do.

 

Thanks for any reply (hope you understand my problem :-)

Link to post
Share on other sites

As you already noted:

 

The only way to calculate a speed out of your acceleration-information is to integrate the acceleration over time ;)

should not be that hard to implement - but always remember: the speed measurement could only work for a short time intervall. An acceleration measurement error of 0.01 g sums up to 6 m/s within a minute.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...