Xsens Technologies B.V. AW-A Benutzerhandbuch
© Xsens Technologies B.V.
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3
Getting Started
3.1 Hardware Setup
Dock the MTw’s into the Awinda Station. Connect the Awinda Station to the PC, using the
USB cable provided. The mains power supply is only needed for charging the MTw, turning it
on from the Transport (or switched off) mode and while carrying out firmware updates, but
we recommend connecting the power supply immediately to charge the MTw’s. For wireless
communication between MTw’s, the Awinda Station and the PC, it is not necessary to plug
the Awinda Station to the mains power supply since the wireless interface in the Awinda
Station is powered by USB from the PC.
See Section 4.1 for details about the MTw.
See Section 4.2 for details about the Awinda Station.
See Section 4.3 for details about the Awinda USB dongle.
See Section 4.4 for details about the MTw Click-in body straps.
USB cable provided. The mains power supply is only needed for charging the MTw, turning it
on from the Transport (or switched off) mode and while carrying out firmware updates, but
we recommend connecting the power supply immediately to charge the MTw’s. For wireless
communication between MTw’s, the Awinda Station and the PC, it is not necessary to plug
the Awinda Station to the mains power supply since the wireless interface in the Awinda
Station is powered by USB from the PC.
See Section 4.1 for details about the MTw.
See Section 4.2 for details about the Awinda Station.
See Section 4.3 for details about the Awinda USB dongle.
See Section 4.4 for details about the MTw Click-in body straps.
3.2 Software Installation
Insert the CD supplied to run the MT Manager Installer (setup.exe). If using Windows
XP/Vista/7 operating systems, install with 'Administrator' or 'Power User' rights. Follow the
on-screen instructions.
XP/Vista/7 operating systems, install with 'Administrator' or 'Power User' rights. Follow the
on-screen instructions.
See Section 6.1 for detailed MT Manager installation instructions.
3.3 Tips for Best Practice
3.3.1 Magnetic Distortion
For best results when measuring with the Xsens MTw, it is advised to avoid highly
magnetised areas when carrying out measurements; in particular in the beginning. XKF-3w
uses the local magnetic field to compute heading. When this signal is distorted due to close
proximity of a strong magnet, or ferromagnetic material (iron or steel), accuracy of results
may decrease.
Check the magnetic norm of the environment. To check the magnetic norm, the system
should be installed and running, with at least one MTw active. Open the inertial data graph
and look at the Magnetic Norm curve (black line) while moving in the measurement area.
Areas for which the magnetic norm variation remains within ±0.2 are best for carrying out
measurements.
For best results when measuring with the Xsens MTw, it is advised to avoid highly
magnetised areas when carrying out measurements; in particular in the beginning. XKF-3w
uses the local magnetic field to compute heading. When this signal is distorted due to close
proximity of a strong magnet, or ferromagnetic material (iron or steel), accuracy of results
may decrease.
Check the magnetic norm of the environment. To check the magnetic norm, the system
should be installed and running, with at least one MTw active. Open the inertial data graph
and look at the Magnetic Norm curve (black line) while moving in the measurement area.
Areas for which the magnetic norm variation remains within ±0.2 are best for carrying out
measurements.
3.3.1.1 Types of Magnetic Disturbance
Figure 1 below gives an indication of how ferromagnetic objects lying in a homogenous
magnetic field cause magnetic field distortions. It is clear from this figure that only when
magnetic field cause magnetic field distortions. It is clear from this figure that only when