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1. WO2007043951 - TANK GAUGING SYSTEM

Publication Number WO/2007/043951
Publication Date 19.04.2007
International Application No. PCT/SE2006/001161
International Filing Date 13.10.2006
IPC
G01F 23/284 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by 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
28by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
284Electromagnetic waves
G01S 13/88 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
88Radar or analogous systems, specially adapted for specific applications
CPC
G01F 23/284
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by 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
28by measuring the variations of parameters of electric or acoustic waves applied directly to the liquid or fluent solid material
284Electromagnetic waves
G01S 13/34
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06Systems determining position data of a target
08Systems for measuring distance only
32using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
34using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
Applicants
  • ROSEMOUNT TANK RADAR AB [SE]/[SE] (AllExceptUS)
  • HÄGG, Lennart [SE]/[SE] (UsOnly)
  • LARSSON, Lars, Ove [SE]/[SE] (UsOnly)
  • ADOLFSSON, Kenneth [SE]/[SE] (UsOnly)
  • EDVARDSSON, Olov [SE]/[SE] (UsOnly)
Inventors
  • HÄGG, Lennart
  • LARSSON, Lars, Ove
  • ADOLFSSON, Kenneth
  • EDVARDSSON, Olov
Agents
  • AWAPATENT AB
Priority Data
11/251,58214.10.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TANK GAUGING SYSTEM
(FR) SYSTEME DE JAUGEAGE DE RESERVOIR
Abstract
(EN)
A tank gauging system for sensing product parameters of a product contained in a tank is disclosed. The system comprises a microwave-based level gauging unit and a temperature gauging unit. A controller of the system includes an external interface adapted to enable communication between the tank gauging system and an external control system; processing circuitry configured for management of communication over the external interface; and a power supply, which is configured to supply intrinsically safe power to the gauging units, wherein the power supply has an improved output characteristic. Further, an intrinsically safe two-wire bus connecting the controller and the gauging units is provided, wherein the two-wire bus is usable both for transmitting measurement signals related to the sensed product parameters from the gauging units to the controller and for providing intrinsically safe power from the controller to the gauging units.
(FR)
Cette invention concerne un système de jaugeage de réservoir permettant de détecter des paramètres produits d'un produit contenu dans un réservoir. Le système comprend une unité de jaugeage de niveau par micro-ondes et une unité de jaugeage de température. Une unité de commande du système comprend une interface externe permettant d'établir une communication entre le système de jaugeage de réservoir et un système de commande externe; un circuit de traitement conçu pour gérer la communication sur l'interface externe; et une alimentation électrique conçue pour alimenter les unités de jaugeage en énergie à sécurité intrinsèque. En outre, le système utilise un bus à deux fils à sécurité intrinsèque reliant l'unité de commande et les unités de jaugeage, le bus à deux fils pouvant être utilisé à la fois pour envoyer des signaux de mesure relatifs aux paramètres produits détectés des unités de jaugeage à l'unité de commande et pour fournir de l'énergie à sécurité intrinsèque de l'unité de commande aux unités de jaugeage.
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