UG-154
Evaluation Board User Guide
Rev. 0 | Page 14 of 16
SENSITIVITY CHECK PANEL
09
11
3-
02
3
Figure 23. Sensitivity Check Panel
The last panel (see Figure 23) provides a method for checking
the approximate sensitivity of a given device. The data sheet
specification for sensitivity is 80 ± 3% LSBs/°/sec. This panel is
designed to use the nominal sensitivity to calculate the angle of
rotation experienced by the satellite board. If you have access to
a firmly rooted straight edge, you can use the
Sensitivity Check
panel as follows:
1.
Place a flat edge of the satellite board firmly against the
desktop straight edge.
2.
Click the
Perform Sensitivity Check
button. Do not rotate
the satellite board until instructed by the evaluation GUI.
The software must perform an initial calibration step to
accurately calculate the angle of rotation.
3.
After the null calibration is performed, slowly rotate the
satellite board through 180° (90° can also be used). Because
the satellite board is approximately square, as each adjacent
side is brought flush with the straight edge, 90° of rotation
will have been experienced. After the gyro graphic in the
GUI rotates through 180°, the measurement stops.
4.
If you finish rotating the device before completion of the
measurement, firmly hold the satellite board against the
straight edge to ensure that no additional rotation is
applied to the device.
At the completion of the measurement, the angle through
which the satellite board was rotated should appear in the GUI.
This measurement should be considered approximate because
error sources incurred during the angle integration can alter the
results.
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
