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© 2017 smartOar
®
G. The Gate Angle Curves
The displayed gate angle curve needs some explanation: The Gate
Angle Sensor is meant to be zeroed at the point which the oar is
perpendicular from the boat, i.e., sticking straight out from the side. The
curve that is displayed is the absolute value of the angle relative to this
zeroed position. This means that positive and negative angles
corresponding to the catch and release sides of the curve are plotted as
positive numbers. The curve looks like a “V” centered on the force curve.
This method has the advantage of showing exactly where the gate is
perpendicular relative to the force curve (the bottom of the “V”).
At the catch, you can see how the angle changes with time. Many
catch defects are clearly visible from the shape of this portion of the curve.
If the angle decreases substantially before the force curve begins to
increase, “rowing it in” may be a problem. If the gate angle curve is flat for
a length of time, the rower may be coming early to the catch and waiting.
If the curve changes rapidly coming up to the peak value before the catch,
the rower may be “rushing up to the catch” or “reaching”.
HINT:
The Gate Angle Sensor is easily moved between gates. If assigned to
the
9th/boat
position, you can look at an individual rower by attaching it to
the bracket on their pin and see the eight force curves and one gate angle
curve. The same restriction for accelerometers on older tablets in the in the
9
th
/boat
position during
record
and
playback
here as well
.
4. The Numbers
