User Manual

© Xsens Technologies B.V.
51
11 Appendices
11.1 MTw Technical Specifications
11.1.1 MTw Performance
Angular velocity
Acceleration
Magnetic field
Pressure
Dimensions
3 axes
3 axes
3 axes
-
Full Scale
± 1200 deg/s
± 160 m/s
2
± 1.5 Gauss
300 -1100 mBar
1
Linearity
0.1 % of FS
0.2 % of FS
0.2 % of FS
0.05 % of FS
Bias stability
2
20deg/hr
-
-
100 Pa/year
Noise
0.05deg/s/√Hz
0.003m/s
2
/√Hz
0.15mGauss/√Hz
0.85 Pa/√Hz
Alignment error
0.1 deg
0.1 deg
0.1 deg
-
Bandwidth
3
100Hz (max.)
100 Hz (max.)
20 Hz (max.)
-
11.1.2 Orientation Performance
Dynamic Range
all angles in 3D
Angular Resolution
4
0.05 deg
Static accuracy
(Roll/Pitch)
<0.5 deg
Static Accuracy
5
(Heading)
1 deg
Dynamic Accuracy
6
2 deg RMS
11.1.3 MTw Physical Properties
Accelerometers
MEMS solid state, capacitative readout
Rate gyroscope
MEMS solid state, monolithic, beam structure, capacitive readout
Magnetometer
Magneto-Impedance sensor elements
Barometer
Piezo-resistive sensor element
Weight
27g
Housing dimensions
34.5 x 57.8 x 14.5mm (W x L x H)
1
(-500 -.9000 m above sea level)
2
As measured from the Allan variance diagram.
3
Half of the chosen sampling rate.
4
1 σ standard deviation of zero-mean angular random walk
5
In homogenous magnetic environment
6
May depend on type of motion