http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59187245-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8bedfa85ef2193722167a1f9300f6370 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-1702 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N9-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-00 |
| filingDate | 1983-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ffd5041c58fe5d2d94b6c844988bcb1e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f83b45cc7e3f99fda3662abfad8a8e8 |
| publicationDate | 1984-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59187245-A |
| titleOfInvention | Method and device for measuring indirectly content of accessory metal in substance on seabed by utilizing photoacoustic phenomenon |
| abstract | PURPOSE:To enable the measurement of a content of a metal without taking directly a substance containing the metal out of the seabed, by making a photoacoustic sensor contact with said substance to which a periodically-intermittent light is applied, so as to detect a photoacoustic phenomenon thereof, and by determining the content of the metal from a photoacoustic spectrum obtained from said detection. CONSTITUTION:First, a substance located at the bottom of the water is searched by an underwater TV camera 12. Next, a photoacoustic sensor 11 is made to contact with said substance 15 and a periodically-intermittent light L of a light-emitting unit 4 is applied thereto in a light-extinguished state. A photoacoustic phenomenon thus occurring in the substance 15 is sensed by the photoacoustic sensor 11 provided with a piezoelectric element, and is detected as a piezoelectric phenomenon. A piezoelectric signal thus obtained is converted into an electric signal and this is transmitted to a measuring device 16 set in a ship on the surface. Then, the intensity of a photoacoustic spectrum calculated from the ratio between the intensity of a photoacoustic spectrum signal of the substance 15 obtained by the measurement by the device 15 and the intensity of a reference photoacoustic spectrum is compared with the characteristic curves of the intensity of a photoacoustic spectrum indicating the various contents of the known metal, and thereby the content of the known metal in the substance 15 is determined. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015028476-A |
| priorityDate | 1983-04-07-04:00^^<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/SID419512635 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID962 |
Total number of triples: 18.