http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1237177-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c4ac640316f0b9aa95616a643acb91a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-1795 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-3531 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-453 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-35 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J3-453 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-39 |
| filingDate | 1985-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_accdba2d0b3ac563250e4d90464d1aaf |
| publicationDate | 1988-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1237177-A |
| titleOfInvention | Apparatus and method for remote sensing of gases, vapours or aerosols |
| abstract | ABSTRACT (Figure 4) A remote sensor for detecting gas, vapour or aerosol comprises means to measure the change in temporal coherence of light of a selected narrow waveband when it interacts with the gas etc. The light can be provided by a laser source or spectrally filtered sun light etc. Received radiation is split in to two beams by a Fresnel biprism and then detected by a detector sensitised by a modulating reticle to interference fringes. A glass delay plate of suitable thickness is placed in the path of one of the beams such that only received radiation having a temporal coherence greater than a minimum determined by the plate thickness produces an output signal from detector. The minimum temporal coherence is set higher than the temporal coherence of the illuminating radiation. In alternative arrangements a band-pass temporal coherence filter may be used and the sensor can be made to spectrally scan the field of view by using a tunable laser or a variable centre frequency band-pass optical filter. |
| priorityDate | 1984-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.