http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1086628-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0de068fb9281b5c893c5c9f5250d014b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-115 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F1-115 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F1-90 |
| filingDate | 1965-04-02^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_217df06f4b82b49c0e2cdfb7e708ca07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be008bf99bb1ebe885d4c2bd90cbc1b7 |
| publicationDate | 1967-10-11^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1086628-A |
| titleOfInvention | Improvements in or relating to the measurement of mass flow rate of gases |
| abstract | 1,086,628. Measuring mass flow rate of gases. WESTWIND TURBINES Ltd. March 10, 1966 [April 2, 1965], No.14026/65. Heading G1N. The mass rate of flow of a gas is measured by integrating square pulses having a repetition frequency, duration and amplitude linearly proportional to a respective one of the quantities volumetric flow rate, pressure and the inverse of the temperature of the gas. The gas flows past a turbine having gas lubricated bearings, causing it to rotate at a speed proportional to the volumetric flow-rate of the gas thereby generating pulses at a corresponding frequency by means of a magnetic or capacitive pick-off. These pulses after shaping are supplied to a bi-stable circuit to generate a further series of pulses of the same frequency. Each of the latter pulses is terminated by a feedback circuit including a time constant circuit and a level discriminator supplied with signals from the time constant circuit and from an amplifier connected to a copper resistance thermometer (or a thermocouple). The length of the pulses is thus made inversely proportional to the gas temperature. The pulse amplitude is then controlled in accordance with the output of a further amplifier receiving the output from a diaphragm-type pressure transducer including a strain gauge or an inductive pick-off. The resulting pulses are finally supplied to a moving coil meter. The output may be modified as a function of standard pressure and temperature so that the device indicates the flow rate in units of standard volume for a particular gas. The measuring circuit may also include means for modifying the output in accordance with a selected value of R, the gas constant, so that the device may be used for any gas. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108692825-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113700739-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3537312-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19735724-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3693435-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4941361-A |
| priorityDate | 1965-04-02^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID418354341 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID23978 |
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