http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2904357-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cd6d0d807ddff00aa5fa2e08ec3a50c2 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-032 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B06B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-667 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0426 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0427 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-02836 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-2412 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-032 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-667 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-2412 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-662 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B06B1-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-24 |
| filingDate | 2013-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03268e292451238aec2869c525e0b126 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c38467c5b95863db8948679c2baaeed |
| publicationDate | 2015-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2904357-A2 |
| titleOfInvention | Acoustic flowmeter and method for determining the flow in an object |
| abstract | The invention relates to a method for determining the flow or the flow rate of a medium in an electrically conductive object, in particular a pipe (1) or a pipeline, through which a medium flows. At least one ultrasonic wave (16) is produced by means of a transmitting transducer (11) in the object and is injected into the medium as a longitudinal wave (8) on an inner side of the object, and an ultrasonic signal, coming at least partially from the longitudinal wave (8), is received by the receiving transducer (12), at a spatial distance from the injection point and is used to evaluate the flow or the flow rate. Said transmitting transducer (11) produces, preferably in the absence of an acoustic coupling with the surface of the object, a first variable magnetic field in an area close to the surface of the object, in particular metallic, and a first ultrasonic wave is produced in said area by means of the interaction of said variable magnetic field with a static or quasi-static magnetic field. Said transmitting transducer (11) also produces an additional variable magnetic field in the area of the object and an additional ultrasonic wave is produced in said area by means of the interaction of the variable magnetic field with a static or quasi-static magnetic field, said other ultrasonic wave is superimposed on the first ultrasonic wave such that an amplitude of a resulting wave in the direction of the receiving transducer (12) is increased and is reduced in the direction away from said receiving transducer (12). Preferably, the first and the second magnetic fields are produced by two high frequency bobbins (18, 19) of the transmitting transducer (11). The invention also relates to a device for carrying out said inventive method. |
| priorityDate | 2012-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.