Register to reply

Acceleration to Velocity by area integration

by likephysics
Tags: acceleration, integration, velocity
Share this thread:
likephysics
#1
Apr25-14, 01:26 AM
P: 615
I know this has been asked many times.
I am integrating acceleration data from MEMS accelerometer to get velocity.

I found an app note by freescale - http://cache.freescale.com/files/sen...ote/AN3397.pdf

It ignores the sampling time to calculate the area.
The formula should be sample: Vx= V(x-1)+[N-(N-1) * T]. Right?
But the app note it is -
Vx = V(x-1)+N+[((N-(N-1))/2]

V(x-1) is the previous integration result.
Phys.Org News Partner Engineering news on Phys.org
UConn makes 3-D copies of antique instrument parts
Amazon worker piloted drone around Space Needle
Five next-generation technologies for positioning, navigation and timing
Simon Bridge
#2
Apr25-14, 03:35 AM
Homework
Sci Advisor
HW Helper
Thanks
Simon Bridge's Avatar
P: 12,447
It ignores the sampling time to calculate the area.
... you still have to multiply by time somewhere.

N+[((N-(N-1))/2]
... nonsense: did you misplace a parenthesis?

N+[((N-(N-1))/2]=N+1/2


Register to reply

Related Discussions
Area of a circle by integration Calculus & Beyond Homework 24
Integration. About -ve area and stationary value. Calculus & Beyond Homework 1
Acceleration on a Rollercoaster (And Integration to Velocity) General Physics 3
Integration and Computing Area Calculus & Beyond Homework 3