Does the Output Displacement option displace all the signals or only some?
The Output Displacement option in the RT3000 displaces all the signals. It simulates mounting the RT3000 at a different location to the location where you want to measure. The affected outputs are the position, velocity and accelerations. The status information (accuracy) does not get changed and so may be optimistic.
The acceleration measurements become noisy when the output is displaced. There is typically about 100 deg/sē of noise in a car when travelling on a smooth road. This angular vibration is local to the RT3000 and the car should not be considered stiff. Yet the maths for displacing the output must assume that the car is completely stiff. The 100 deg/sē equates to nearly 2m/sē of vibration noise on the acceleration channels at a displacement of 1m. Most of this noise is high-frequency and can be removed by filtering. We do not filter the data because a filter would increase the latency of the RT3000.