SOFTWARE & TUNING 46
IMU SENSOR
The IMU sensor used in the T3 is a combination of a high precision 3 axis
gyroscope sensor and a 3 axis accelerometer sensor.
IMU board is enclosed in a weather proof case and being heated where the
temperature inside is controlled around 50°C with 0.2°C accuracy. Thanks to this
feature, gyro calibration is no longer required in most situations.
In order to provide extra high precision data output, the IMU is performed 6-point
calibration at Gremsy factory.
The T3 controller has a special algorithm to provide attitude estimation based on
input data from the IMU sensor. This attitude estimation helps the controller to
command motor output to compensate for camera movement.
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