| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b051f9f7933c758e66f6ceda5c9fb2cc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17C2250-0495
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17C2250-0469
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17C2250-0404
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T137-8158
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17C2250-0421 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F15-063
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17C13-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17C13-023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01G17-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01G3-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N9-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01G17-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N9-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F1-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F17C13-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01G17-06 |
| filingDate |
2011-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e925d2c4eca32a1cfbe363b5e9327d4e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a47f5caa9912e0ed10ac22a87100f842
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb8fb3ae4464c2c74cc3a1cadb21e79e |
| publicationDate |
2013-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20130103582-A |
| titleOfInvention |
Method and apparatus for measuring the exact content of a cylinder of gas under pressure |
| abstract |
Methods and apparatus are provided for measuring the mass of a gas under pressure using a piezoelectric oscillator. The gas is received in the pressure vessel 100 having a fixed internal volume V and the piezoelectric oscillator 202 is immersed in the gas in the pressure vessel 100. The method comprises the steps of: a) using the piezoelectric oscillator 202 to measure the density of the gas in the high pressure vessel 100; b) determining the mass of the gas in the pressure vessel 100 from the density measurement and from the internal volume V of the pressure vessel. By providing such a method, the exact content (i.e. mass) of the fluid in a pressure vessel such as a cylinder can be measured directly without the need to correct factors such as temperature or compressibility. This allows determination of the mass through direct derivation from the density of the gas in the cylinder, thus reducing the need for complicated calculations or additional sensors to be performed. |
| priorityDate |
2010-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |