http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108168465-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01B11-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B11-26 |
| filingDate | 2017-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108168465-B |
| titleOfInvention | A kind of optical path laser heterodyne interferometry roll angle high precision measuring device and method altogether |
| abstract | The invention belongs to the photoelectric measurement field of roll angle, specially a kind of optical path laser heterodyne interferometry roll angle high precision measuring device, including single-frequency frequency stabilized carbon dioxide laser, depolarization Amici prism, polarization splitting prism and right-angle prism altogether；It is disposed with acousto-optic modulator and reflecting mirror respectively in the transmission optical axis and reflection optical axis of depolarization Amici prism；Second exit facet of polarization splitting prism is disposed with quarter-wave plate, half wave plate and reflector, and analyzer is additionally provided on the reflection optical axis of reflector, and the exit direction of analyzer is provided with the first photodetector and the second photodetector；First photodetector and the second photodetector are connect with phase difference sensitive detection parts, and phase difference sensitive detection parts are connected with computer.The phase shift that two measurement light are generated by same rolling in measuring device of the present invention is on the contrary, improve Measurement Resolution, and the optical path difference of two light beams is small, small by such environmental effects, measurement result is accurate. |
| priorityDate | 2017-12-23-04:00^^<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/CID280 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID457698762 |
Total number of triples: 12.