Earth Coordinates with earth G in Acc; In this configuration, the motion sensor will use the earth
horizon as the coordinate system for the angular and acceleration output. The acceleration will
include the earth gravity force of about 9.8 m/s².
IMU Coordinates with earth G in Acc; In this configuration, the calculations will use the motion
sensor coordinate system as its reference for the calculations of angular and acceleration output. The
motion sensor acceleration will include the earth gravity force of about 9.8 m/s².
Surge, Sway and Heave and its velocities can be set to be output in the earth coordinate system or in
the IMU coordinate system regardless of the setting selected for the angles output.
Output Rate
Adjusts the number of times the motion sensor outputs its string per second. Choose the required
value in the list box. A high output frequency and low baud rate will reduce the output rate by
limitation of data transfer rate over the serial communication line. To high output rate in relation to
the data transfer rate will create measurement inconsistency.
Kalman Filter Settings
Filter 1 sets the filter for the accelerometers in the Kalman filter calculations. A higher filter 1 value
will reduce the accelerometer sensor reading influence in the Kalman filter angular calculation.
The default settings are
IMU-10x = 100
IMU-00x = 25
Filter 2 sets the filter for the gyroscopes in the Kalman filter calculation. A higher filter 2 value will
reduce the gyroscope reading influence in the Kalman filter angular calculation.
The default settings are
IMU-10x = 0.01
IMU-00x = 0.01
It is not advisable to change the settings for the Kalman Filter without consulting with SMC
The default button will reset the filter settings to the factory defaults.
IMU Bitrate and Parity
The bitrate setting adjusts the data transfer rate that the motion sensor uses for transmitting. To be
able to connect to the motion sensor a matching communication setting must be set for the receiving
device
Available Bit rates: 4800, 9600, 19200, 38400, 57600, 115200
Note: For Long protocols, such as for example PSMCC using a high data output frequency like 100Hz,
a high Bitrate, 115200 bps, will be needed, to be able to transfer the data from the motion sensor.
See notes beside each protocol.
Read Settings
Clicking on the Read Settings button will prompt the IMU Configuration Software to read the current
motion sensor settings and display them in the software interface.
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