http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H05180753-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_80787665b837ed3eb503bbcd27c0043a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-00 |
| filingDate | 1991-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc2ee2ff5dac77eec90372163f3ef2f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_927cf34871dc824e08128d5e4b4ee1cd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e71699b0f6a97fc7b53f27bb9313fd7 |
| publicationDate | 1993-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H05180753-A |
| titleOfInvention | Photoacoustic absorbance measuring method and apparatus |
| abstract | (57) [Summary] [Purpose] In measuring the absorbance of a liquid sample, the absorbance is obtained with high accuracy by simultaneously measuring the photoacoustic signal intensity and the sample temperature. [Structure] The sample in the cell 3 absorbs the excitation light 9 and generates a photoacoustic wave. The generated photoacoustic wave is detected by the acoustic wave sensor 4, converted into a photoacoustic signal 10, and the lock-in amplifier 6 is detected. Then, only the component synchronized with the reference signal 11 is amplified, and the photoacoustic signal intensity is measured. Further, the temperature of the liquid sample in the cell 3 is measured by the temperature sensor 5, and the volume expansion coefficient of the sample is obtained. [Effect] The absorbance of a liquid sample can be measured with high accuracy. |
| priorityDate | 1991-12-27-04:00^^<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/compound/CID17730 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID452913088 |
Total number of triples: 15.