INS
GUI User’s Manual
Inertial Labs, Inc
TM
Address: 39959 Catoctin Ridge Street, Paeonian Springs, VA 20129 U.S.A.
Tel: +1 (703) 880-4222, Fax: +1 (703) 935-8377 Website: www.inertiallabs.com
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EXIT_REQUESTED – informs you can click “Exit” button to exit from the
calibration procedure without saving of calibration parameters.
If to click the “Accept” button, then calibration matrix of the magnetometer
biases and scale factors will be calculated and saved to the INS nonvolatile
memory automatically.
If calibration results were accepted then in the directory in which the
INS_GUI.exe file is located, files with .prm, and .amd extension will be
created.
Notes.
1.Filename consists of the INS serial number, text _ MagField _ and 6 digits that
indicates time when the file was saved (2 digits of hours, 2 digits of minutes, 2 digits of
seconds). The last symbols in filename corresponds to type of the performed calibration:
_2D corresponds to data of 2D calibration; _3D – for 3D calibration; _2D_2T – for 2D_2T
calibration; _VG3D – for VG3D calibration. Example of files name:
106A0016_MagField_140838_2D.prm, 106A0016_MagField_140838_2D.amd.
2.Default directory for saved files is “data” subdirectory placed in the directory where file
INS_GUI_*.exe is located.
Step 11. If the calibration is unsuccessful, then window Fig. 10.15
appears with a caption “Unsuccessful calibration. Try again!”.
Fig. 10.15
One reason of unsuccessful calibration may be small range of angles of the
INS real rotation. In this case a caption “Calibration failure! Rotation of the
device is required!” appears (see Fig. 10.16). To avoid this please repeat
calibration procedure with rotation of the INS as it is described in the
beginning of this section. Some more reasons of unsuccessful calibration
are discussed in the section “10.4.3.Conditions of successful calibration of
the INS”.
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