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1. (WO2006136777) A DETECTOR FOR DETECTING A BIIElIED CURRENT CARRYING CONDUCTOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2006/136777 International Application No.: PCT/GB2006/002065
Publication Date: 28.12.2006 International Filing Date: 06.06.2006
IPC:
G01V 3/08 (2006.01)
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3
Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
08
operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
Applicants:
RADIODETECTION LIMITED [GB/GB]; Western Drive Bristol BS14 0AZ, GB (AllExceptUS)
ROYLE, John, Mark [GB/GB]; GB (UsOnly)
THOMPSON, Jeff [GB/GB]; GB (UsOnly)
PEARSON, Richard [GB/GB]; GB (UsOnly)
WORSLEY, Robert, Ashworth [GB/GB]; GB (UsOnly)
Inventors:
ROYLE, John, Mark; GB
THOMPSON, Jeff; GB
PEARSON, Richard; GB
WORSLEY, Robert, Ashworth; GB
Agent:
MAURY, Richard, Philip; Marks & Clerk 90 Long Acre London WC2E 9RA, GB
Priority Data:
0512566.120.06.2005GB
Title (EN) A DETECTOR FOR DETECTING A BIIElIED CURRENT CARRYING CONDUCTOR
(FR) DETECTEUR PERMETTANT DE DETECTER UN CONDUCTEUR ENFOUI
Abstract:
(EN) A detector (1) for detecting a buried current carrying conductor comprises a digital signal processor (16) and a power supply unit (25). The power supply unit (25) is a switched mode power supply which incorporates a proportional integral differential controller feedback algorithm (33) and which is managed by the digital signal processor (16). The load (31) and source (26) voltage are monitored by the digital signal processor (16) and a look-up table (35) is used to control a pulse width modulator (27), which drives a single ended primary induction controller (29). The self-generated noise of the power supply unit (25) does not interfere with the frequency bands of detection of the detector (1).
(FR) L'invention concerne un détecteur (1) qui permet de détecter un conducteur enfoui et qui comprend un processeur de signaux (16) et une unité d'alimentation (25). L'unité d'alimentation (25) fonctionne en mode commuté, comprend un algorithme de rétroaction du contrôleur différentiel intégral et proportionnel (33) et est géré par le processeur de signaux numériques (16). Les tensions de la charge (31) et la de source (26) sont surveillées par le processeur de signaux numériques (16) et une table de consultation (35) est utilisée pour contrôler un modulateur d'impulsions en largeur (27), qui commande un contrôleur local d'induction primaire (29). Le bruit autogénéré de l'unité d'alimentation (25) n'interfère pas avec les bandes de fréquence de détection du détecteur (1).
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, 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)