If the accelerometer is stationary or traveling at a constant velocity, what happens?

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Prepare for the VT-IV Navigation Familiarization Exam II. Master navigation techniques with flashcards and multiple choice questions, with each answer fully explained. Boost your confidence and ace your exam!

Multiple Choice

If the accelerometer is stationary or traveling at a constant velocity, what happens?

Explanation:
The accelerometer responds to changes in velocity, i.e., to acceleration. If the platform is stationary or moving at a constant speed, there is no change in velocity, so the acceleration is zero. Therefore, in an ideal case, the dynamic output of the accelerometer is zero. In real systems, gravity can introduce a constant bias, but the meaningful dynamic output (the part that tracks changes in motion) remains zero in this situation.

The accelerometer responds to changes in velocity, i.e., to acceleration. If the platform is stationary or moving at a constant speed, there is no change in velocity, so the acceleration is zero. Therefore, in an ideal case, the dynamic output of the accelerometer is zero. In real systems, gravity can introduce a constant bias, but the meaningful dynamic output (the part that tracks changes in motion) remains zero in this situation.

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