Multi-sensor system for the detection and characterization of unexploded ordnance
- Berkeley, CA
To fully characterize the inductive response of an isolated conductive object, such as buried unexploded ordinance, one needs to measure its response to stimulation by primary magnetic fields in three linearly independent (e.g., approximately orthogonal) directions. In one embodiment this is achieved by measuring the response to magnetic fields of three independent transmitters arranged to have magnetic fields that are linearly independent. According to the apparatus and methods employing the system of this invention, multiple transmitters and receivers of known relative position and orientation on a single platform are used. In a preferred embodiment, matched sets of receiver pairs connected in gradient mode are positioned adjacent to closely spaced pairs of transmitting coils, such that a minor displacement of one or both of the receiver coil pairs relative to the paired transmitting coils will not affect the detected secondary signals emitted by a buried metallic object.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-05CH11231; AC03-76SF00098
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Number(s):
- 7,999,550
- Application Number:
- 12/237,668
- OSTI ID:
- 1024209
- Country of Publication:
- United States
- Language:
- English
Estimating equivalent dipole polarizabilities for the inductive response of isolated conductive bodies
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journal | June 2004 |
Multi-transmitter multi-receiver null coupled systems for inductive detection and characterization of metallic objects
|
journal | March 2007 |
Optimizing receiver configurations for resolution of equivalent dipole polarizabilities in situ
|
journal | July 2005 |
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