Acceleration data
Acceleration data
(OP)
Hi,
To get velocity from acceleration data we integrate once. Integrating velocity we get displacement.
Acceleration data is in time domain.
Velocity is given by integrating acceleration in time domain and same for displacement or integrating acceleration in frequency domain to get velocity and displacement?
My experiment does not make sense, and I am trying to make sense out of it. As you may guess, I am new in the field.
Thanks
To get velocity from acceleration data we integrate once. Integrating velocity we get displacement.
Acceleration data is in time domain.
Velocity is given by integrating acceleration in time domain and same for displacement or integrating acceleration in frequency domain to get velocity and displacement?
My experiment does not make sense, and I am trying to make sense out of it. As you may guess, I am new in the field.
Thanks





RE: Acceleration data
Any zero offset in your acceleration signal will cause an ever increasing speed signal. So even if your accelerometer is at standstill, you will get an increasing speed signal.
The zero offset can come from the transducer electronics or from the simple fact that your vertical is a bit off. That will generate a zero error that is proportional to sin(angle). Where angle is the offset between transducer vertical and true vertical.
The offset can also come from the integrator or A/D (if digital integrator). Many real-world integrators also leak. That means that the output strives to zero when no input present.
Your next integrator (for position) will amplify the errors in the speed signal. And then add a few more. So, if you are planning on an inertial guidance system, you are in for a tough challenge.
But it can be done. And it has been done.
Gunnar Englund
www.gke.org
RE: Acceleration data
Regards,
?brahim Ucak
RE: Acceleration data
Gunnar Englund
www.gke.org
RE: Acceleration data
RE: Acceleration data