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1. (WO2016065105) PULSE SHAPE CHANGE FOR INTERFACE DETERMINATION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2016/065105 International Application No.: PCT/US2015/056827
Publication Date: 28.04.2016 International Filing Date: 22.10.2015
IPC:
G01F 23/284 (2006.01) ,G01S 13/88 (2006.01) ,G01S 13/08 (2006.01)
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23
Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22
by measurement of physical variables, other than linear dimensions, pressure, or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
28
by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
284
Electromagnetic waves
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
13
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88
Radar or analogous systems, specially adapted for specific applications
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
13
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
02
Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06
Systems determining position data of a target
08
Systems for measuring distance only
Applicants:
HONEYWELL INTERNATIONAL INC. [US/US]; 115 Tabor Road M/S 4D3 P.O. Box 377 Morris Plains, NJ 07950, US
Inventors:
SAVARD, Stephane; US
HARAN, Frank, Martin; US
Agent:
BEATUS, Carrie; US
Priority Data:
14/880,38312.10.2015US
62/067,50223.10.2014US
Title (EN) PULSE SHAPE CHANGE FOR INTERFACE DETERMINATION
(FR) CHANGEMENT DE FORME D'IMPULSION POUR DÉTERMINATION D'INTERFACE
Abstract:
(EN) A method (100) of pulsed radar interface determination for a first and second material in a tank (205), An interface level determination model is provided (101) including a transfer function that utilizes refractive indices for the materials and thickness of the second material. At least one actual radar pulse is transmitted (102) into the tank and a resulting echo curve portion including a measured interface pulse(s) around the interface location is measured. The interface model is simulated (103) with a reference pulse and an initial thickness value to generate an initial model generated interface pulse (initial MGIP). The measured interface pulse is compared (104) to the initial MGIP pulse point-by-point to determine residuals. If the residuals sum > a predetermined threshold, the comparing (105) is repeated with an updated interface model generated with an updated thickness value that provides an updated MGIP pulse. When the sum of residuals is < predetermined threshold, the thickness is determined (106).
(FR) L'invention concerne un procédé (100) de détermination d'interface par radar pulsé pour un premier et un second matériau dans un réservoir (205). Un modèle de détermination de niveau d'interface est fourni (101) et comprend une fonction de transfert qui utilise des indices de réfraction pour les matériaux et l'épaisseur du second matériau. Au moins une impulsion radar réelle est émise (102) dans le réservoir et une partie de courbe d'écho résultante, comprenant une ou plusieurs impulsions d'interface mesurées autour de l'emplacement d'interface, est mesurée. Le modèle d'interface est simulé (103) avec une impulsion de référence et une valeur d'épaisseur initiale afin de générer une impulsion d'interface générée de modèle initial (MGIP initial). L'impulsion d'interface mesurée est comparée (104) à l'impulsion MGIP initial point par point pour déterminer des résidus. Si la somme des résidus > un seuil prédéterminé, la comparaison (105) est répétée avec un modèle d'interface mis à jour, généré avec une valeur d'épaisseur mise à jour qui fournit une impulsion MGIP mise à jour. Lorsque la somme des résidus est < seuil prédéterminé, l'épaisseur est déterminée (106).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)