DETECTION SYSTEM SUITABLE FOR IDENTIFYING AND TRACKING BURIED PIPES OR OTHER BODIES BURIED IN THE GROUND OR EMBEDDED IN CIVIL ENGINEERING WORKS
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United States of America Patent
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Issued Date -
May 6, 2010
app pub date -
Jun 1, 2007
filing date -
Jun 2, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a detection system suitable for identifying and tracking buried pipes or other bodies buried the ground or embedded in civil engineering works, which comprises: a coding device affixed to or integrated into the objects (1), taking the form of a succession of thin coding elements (3), each forming a surface of predetermined size, these elements being separated from one another, and their arrangement making it possible to define a code; and a detection device comprising at least one transmission coil (5), at least one reception coil (6) and a signal processing device for processing the signals coming from the various coils (5, 6), characterized in that at least some of the coding elements (3) are made of magnetic material, the detection device being designed to saturate or modify the point of operation of the coding elements (3) in their operating cycle, which then emit a frequency-rich signal made up of a wave having the fundamental frequency and waves having a frequency that is a multiple of the fundamental frequency, called harmonics, to gather and process the signal coming from these elements (3) and to reconstruct the coding of the object (1).
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