RE: SteadyClip, An Economical Camera Gimbal – Part 03: System Overview

vsluiter — Sun, 10 Nov 2013 22:47:47 GMT

Hello Jianyi,

The Invensense document may seem daunting, but it's actually quite easy to set up: select the devices you want to activate, select the clock you want them to run on and set the range and output data rate. All other features are bonus. This is how most gyraccs work. The 9150 has a lot of features, but you're not forced to use them [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-fa68f786-cb69-4977-822d-712cb254ffd0/contentimage_5F00_1.png:16:16]

RE: SteadyClip, An Economical Camera Gimbal – Part 03: System Overview

DAB — Thu, 07 Nov 2013 20:50:17 GMT

Hi Jianyi,

Good block diagram.

I would suggest that you go with just an X and Y motor solution. It might be easier to calculate the three direction changes and then project the movement into a two dimension plane for the camera.

I used this approach for a FLIR system attached to a search and rescue helicopter. It was useful to keep the camera in the X-Y plane as most of the movement is in the yaw and pitch direction. Unless you are doing some wild aerobatics as you film.

The math is reasonably simple with sine and cosine equations to account for the camera position in relation to the gimbol movement.

I am not sure that a roll motor would get you much movement capture that would not place the camera into an odd filming angle.

DAB