Algodoo

There are three modules:
- sensor module.
- reader/viewer sample.
- frequency viewer sample.

Fixate the base circle of the sensor module on your object to be measured.
Position, speed, angular velocity and so on are measured at the center of the sensor module.

Place viewer(s) where it touches on the sensor's center circle. Then fixate it with two hinges.

See also my sample scene.

*** Sat, 05 Jun 2010 11:43:45 +0900: FIXED memory leak bug.