| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b9d1c00cd947bb662bf1d163f43098a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_577821cf81fda3e1088e6ed08bcd136b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_37f4922dfb7777b019e504b885211b8e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_47fa3b118716a369bc544a45eafec0be
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_76ab10959bcf162afc8de663005054c0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bcb788ac2ea1a772ff0a53a49e5e2375
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_11bb53aaddb13fb6a471f496df8aea5c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_712479c335df51504025eb8d88df6cd1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-06113
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-1704 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-1702 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-17 |
| filingDate |
2020-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c29c839eec4414fceaafe1be02781b60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9aef67e0b544c8f501fb711cf383eca3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a83d0f03ee809c0a9705b3868c4737e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4f1845886f927211f9317d29405f17a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1eb6f5a2e95c0ce05ba363984929c40d |
| publicationDate |
2020-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2020157022-A1 |
| titleOfInvention |
Photoacoustic transducer |
| abstract |
An integrated photoacoustic transducer, sensing system and method for assisting in sensing a concentration of a species (108) in a fluid are disclosed. The integrated photoacoustic transducer comprises a waveguide structure (101) which is configured as an optical resonator for enhancing a modulated radiation signal. The waveguide structure (101) has an optical resonance which is spectrally overlapping a spectral absorption line or band of the species. The photoacoustic transducer further comprises at least one acoustic cavity (104) formed in a portion of the waveguide structure (101) and configured for receiving the fluid for sensing comprising the species. The at least one acoustic cavity (104) has an acoustic resonance which is spectrally overlapping with a harmonic of a modulation frequency. At least one acoustic transducer comprising a deformable mechanical portion (205) is also included in the photoacoustic transducer. The deformable mechanical portion (205) is in direct acoustic communication with the at least one acoustic cavity (104) and has an adjustable mechanical resonance, which can be brought into spectral overlap with an acoustic resonance of the least one acoustic cavity (104). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112858184-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112858184-B |
| priorityDate |
2019-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |