Single and multi-trace omnidirectional sonde and line locators and transmitter used therewith
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United States of America Patent
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Nov 17, 2009
Grant Date -
Jul 21, 2005
app pub date -
Mar 11, 2005
filing date -
Oct 9, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
At least one antenna array including three mutually orthogonal antennas each sharing a common center point senses an electromagnetic signal emitted by a buried object such as a utility line, pipe or sonde. A circuit at least partially mounted in a housing is connected to the array and determines a location of the buried object by measuring signal strength and field angles in three dimensions without having to align the antenna array relative to the buried object while eliminating nulls and false peaks. A graphical user interface (GUI) has user-friendly icons, symbols, menus, numbers and graphical and auditory representation of signal strength. A plurality of different underground objects can be simultaneously detected and their different locations can be simultaneously indicated to a user via audible sounds and/or visual images on a display.
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Cited Art Landscape
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