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1. (WO2012172435) A TRANSVERSE ELECTROMAGNETIC GRADIOMETER INCLUDING AN ELECTROMAGNETOMETER HAVING A LONGITUDINAL SLIT IN THE ELECTROSTATIC SHIELD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2012/172435 International Application No.: PCT/IB2012/001656
Publication Date: 20.12.2012 International Filing Date: 10.05.2012
IPC:
G01R 33/022 (2006.01) ,E21F 11/00 (2006.01) ,E21F 17/18 (2006.01) ,G01R 33/02 (2006.01) ,G01S 5/16 (2006.01)
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
02
Measuring direction or magnitude of magnetic fields or magnetic flux
022
Measuring gradient
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
F
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
11
Rescue devices or other safety devices, e.g. safety chambers, escape ways
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
F
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
17
Methods or devices for use in mines or tunnels, not covered elsewhere
18
Special adaptations of signalling or alarm devices
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
02
Measuring direction or magnitude of magnetic fields or magnetic flux
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
5
Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
16
using electromagnetic waves other than radio waves
Applicants:
RAMPART DETECTION SYSTEMS LTD. [CA/CA]; 22242 48th Avenue Suite 203 Murrayville, Langley, BC V3A3N5, CA (AllExceptUS)
Inventors:
BLUM, Dieter, Wolfgang; CA
Agent:
GUNDERMAN, Robert, D.; Patent Technologies, LLC Lennox Tech Center - Suite 205 150 Lucius Gordon Drive West Henrietta, NY 14586, US
Priority Data:
61/485,99713.05.2011US
Title (EN) A TRANSVERSE ELECTROMAGNETIC GRADIOMETER INCLUDING AN ELECTROMAGNETOMETER HAVING A LONGITUDINAL SLIT IN THE ELECTROSTATIC SHIELD
(FR) GRADIOMÈTRE ÉLECTROMAGNÉTIQUE TRANSVERSAL
Abstract:
(EN) A transverse electromagnetic gradiometer comprising at least two inductive vector electromagnetometers having a magnetically permeable core, an induction coil and a slotted electrostatic shield to feed an amplifier and signal processing arrangement for the detection and subsequent processing of harmonic signatures contained in extremely low-frequency radiation on the order of about 3 hertz to about 3 kilohertz. The transverse electromagnetic gradiometer detects harmonic signatures of various electrical loads, and can also be utilized to detect faulty distribution transformers, faulty streetlight ballasts, illegal power consumption, power bypasses, electrical leakage, poor or faulty neutral- ground bonds, and other conditions that provide characteristics and identifiable harmonic signatures. The transverse electromagnetic gradiometer can also be used to determine location in applications such as a mine collapse or the like. A computer system may further process the obtained harmonic signatures for improved identification capabilities.
(FR) La présente invention concerne un gradiomètre électromagnétique transversal qui comprend au moins un électro-magnétomètre vectoriel inductif comprenant un coeur perméable aux ondes magnétiques, une bobine d'induction et un champ électrostatique pour alimenter un ensemble amplificateur et un moyen de traitement du signal pour la détection suivie du traitement subséquent des signatures harmoniques contenues dans un rayonnement à fréquence extrêmement faible de l'ordre d'environ 3 hertz à environ 3 kilohertz. Le gradiomètre électromagnétique transversal détecte les signatures harmoniques de diverses charges électriques et peut également être utilisé pour détecter les transformateurs de distribution défaillants, les ballasts d'éclairages nocturnes défaillants, la consommation de puissance illégale, les dérivations électriques, les liaisons neutre-terre mauvaises ou défaillantes et d'autres états qui produisent des signatures harmoniques caractéristiques et identifiables. Le gradiomètre électromagnétique transversal peut également être utilisé pour déterminer la position dans des applications telles qu'un effondrement dans une mine ou similaire. Un système informatique peut ensuite traiter les signatures harmoniques obtenues pour une meilleure identification des capacités.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)