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:
Jan. 31, 2012
Filed:
Sep. 07, 2006
Achim Wiest, Weil am Rhein, DE;
Andreas Berger, Reinach, CH;
Oliver Brumberg, Rheinfelden, DE;
Endress + Hauser Flowtec AG, Reinach, CH;
Abstract
An ultrasonic, flow measuring device having a plurality of measuring channels. At least one ultrasonic sensor is situated in a first region of a pipeline, or measuring tube; at least two ultrasonic sensors are situated in a second region of the pipeline (), or measuring tube, in such a manner that the ultrasonic measuring signals travel through the pipeline, or measuring tube, in, or opposite to, a stream direction of the medium, on sound paths of different lengths. A transmitting stage simultaneously excites the ultrasonic sensor, or the ultrasonic sensors, of the first or second region for transmitting the ultrasonic measuring signals. Due to the different lengths of the sound paths, the receiving stage detects the ultrasonic measuring signals incoming to the ultrasonic sensors of the second or first region at separate times. The evaluating stage ascertains, on the basis of travel-time difference of the ultrasonic measuring signals on the individual sound paths, in, and opposite to, the stream direction, volume- and/or mass-flow of the medium in the pipeline, or measuring tube.