The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 2007
Filed:
Oct. 14, 2005
Lennart Hägg, Kungsbacka, SE;
Lars Ove Larsson, Linköping, SE;
Kenneth Adolfsson, Linköping, SE;
Olov Edvardsson, Linköping, SE;
Lennart Hägg, Kungsbacka, SE;
Lars Ove Larsson, Linköping, SE;
Kenneth Adolfsson, Linköping, SE;
Olov Edvardsson, Linköping, SE;
Rosemount Tank Radar AB, Gothenburg, SE;
Abstract
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 enclosed in an explosion-proof housing and configured to supply intrinsically safe power to the gauging units, wherein the power supply has an essentially rectangular 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.