http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105241837-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-3504 |
| filingDate | 2015-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105241837-B |
| titleOfInvention | A kind of infrared gas detection system that can improve detection stability |
| abstract | A kind of infrared gas detection system that can improve detection stability, is belonged to infrared gas detection technical field, including Distributed Feedback Laser etc..Distributed Feedback Laser is located at before optical fiber one-to-two coupler, and light path is divided into two-way by optical fiber one-to-two coupler, it reaches photodetector A through gas chamber all the way, and photodetector A outputs meet amplifying circuit A；Another way light path is connected to photodetector B through optical fiber one-to-two coupler, photodetector B outputs meet amplifying circuit B, the output terminal of amplifying circuit A and B are connected respectively to two input terminals of difference channel, its output terminal connects filter circuit, the output terminal of filter circuit is connected with microprocessor, microprocessor connects temperature control circuit and current driving circuit respectively, and temperature control circuit is connected with Distributed Feedback Laser respectively with the output terminal of current driving circuit；The configuration of the present invention is simple, it is easy to realize, has long-time stability high, overcomes the systematic measurement error of prior art, can be widely used in fiber-optic fiber gas detection field. |
| priorityDate | 2015-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.