| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1a34d7d2e0d09a58cb7bf4a04c81162e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0427
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0256
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0422
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-02818
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2011-0073
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0426
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0423
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0226 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-036
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-326
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-2888
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-348
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-28 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-02 |
| filingDate |
2006-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9bbf6dea3fcac6710af45b767568432
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b3528088ca26806563ad82c4f15d8b7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_35622dbfb21e325ab75db4718a4f8b23 |
| publicationDate |
2008-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20080007478-A |
| titleOfInvention |
Multifunction Sound Wave Oil Quality Sensor |
| abstract |
A method and system for detecting oil quality is disclosed. The quality of the engine oil is determined using a sonic sensor to obtain viscosity and corrosion degree data related to the engine oil. Acoustic wave sensors are coated with a material that selectively reacts with at least one type of acid to provide data indicative of the presence of acid in the engine oil. The corrosion rate or corrosion degree of the engine oil can be determined based on the frequency data obtained as a result of the frequency measurement using the acoustic wave sensor. In addition, the viscosity of the engine oil can be obtained based on the measurement of phase and amplitude obtained from the data using the acoustic wave sensor. Corrosion rate and viscosity measurements provide data indicative of engine oil quality. |
| priorityDate |
2005-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |