2
Radian Motion Sensor
User Manual
Document Ref: UM-8041-C1
Issue: C - Rev 1
© Sonardyne International Limited 2007
Note
Section 6 "Magnetic Calibration" begins on page 29
Radian uses an internal earth magnetic field sensor, called a flux gate, to detect
the earth’s magnetic field so that it can deliver measurements of magnetic head-
ing.
The simple self-calibration procedure described section 6 allows Radian to meas-
ure and compensate for any static hard iron magnetic effects that would otherwise
introduce errors into its heading measurements.
Section 7 "Data Output Formats" begins on page 34
Section 7 describes the data output format that Radian uses to supply digital meas-
urements of heading, roll and pitch to receiving equipment.
Who should read
this manual
This manual should remain available for electronic or hard-copy access by any-
one who has any involvement with the Radian Motion Sensor. All users of the
sensor should ensure they read the relevant sections. If you have a printer connect-
ed to the computer that holds this electronic manual, you can print any part of it.
Updates to the
manual
If necessary, contact Sonardyne International Limited to check whether you have
the latest revision of the manual, or to request printed copies. The document ref-
erence number for this manual is
UM-8041-C1
and this is issue
C - Rev 1
.
1.3 Navigating the manual
The electronic version of this manual is a PDF file read using Adobe
®
Acrobat
®
Reader. Acrobat Reader provides a number of features to help you navigate
through the manual, and to find the information you are looking for conveniently.
You will not be able to use the electronic version of this manual unless the
computer on which it is installed has the Adobe Acrobat Reader software
installed. Visit the Adobe website
www.adobe.com
to download the Read-
er software if necessary.
Navigation
buttons
You can use the Acrobat naviga-
tion buttons to move to the begin-
ning or the end of the manual, or
forwards and backwards by a single page. You can also click the page
number field and type the number of the page you wish to see.
Bookmarks
You can click on a section or sub-section title listed in the
Book-
marks
tab to the left-hand side of the Acrobat screen. Alterna-
tively, you can select the
Pages
tab and then click on one of the
page thumbnails to take you to that page.
Links
Throughout the manual you will find cross-references that refer to section or sub-
section titles, page numbers, figures or tables. For example “See “Navigating the
manual” on page 2.” These are hyperlinks. When you hover the mouse pointer
over them in Acrobat, the pointer changes to a pointing finger. Click on the link
with the mouse to jump to the relevant location in the manual.
The Table of Contents, List of Figures, List of Tables, and Index sections all in-
clude hyperlinks to the locations listed. Click on the listed page number to make
the jump.
