Category: Inertial Sensors

Using Neblina as an Accurate Inclinometer

Posted on July 12, 2017 at 3:06 pm3:06 pm

Accelerometers have been used to detect inclination (tilt) angle for decades. When the sensor is stationary, the accelerometer reading will directly represent the gravity vector in the sensor’s frame of reference. Comparing the gravity vector in the sensor frame, i.e., \(\hat{G} \), with the reference gravity vector in the earth frame, i.e., \(G \), (which … Continue reading Using Neblina as an Accurate Inclinometer

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Handling Gyroscopes’ Bias Drift

Posted on March 30, 2017 at 8:43 pm8:43 pm

Gyroscopes, which capture the angular velocity vector \( \overrightarrow{\omega}\), are mostly the primary source of information in tracking the orientation of a moving object in 3D space. The angular velocity vector \( \overrightarrow{\omega}\) from gyro readings can help us find the angular displacement vector \( \overrightarrow{d\alpha}\) as follows: \( \overrightarrow{\omega} = \dfrac{\overrightarrow{d\alpha}}{dt} \), where \(dt\) … Continue reading Handling Gyroscopes’ Bias Drift

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