Goniometer
Experiment
16
!
4.
Hold the Acceleration Sensor in your hand with the sensor's X-axis
parallel to your forearm and pointing toward your elbow, and the
Y-axis orthogonal to your forearm and pointing in the direction that
your hand moves when you flex your elbow (as shown in the picture).
5.
Measure the distance,
r
, from your elbow to the Acceleration Sensor.
r
=
6.
Hold your arm so that your forearm will rotate in a horizontal plane (as
pictured), and the X-Y plane of the Acceleration Sensor is also
horizontal.
Procedure
1.
Extend your elbow.
2.
Start data collection.
3.
Quickly flex your elbow, wait a moment, then quickly extend your
elbow.
*
4.
Stop data collection.
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=
>
=
>
*The Acceleration
Sensor must remain
level (its X-Y plane
parallel to the floor)
throughout data
collection.
