http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111649839-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01K11-265 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01K11-26 |
| filingDate | 2020-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111649839-B |
| titleOfInvention | Non-linear self-correcting resonance type surface acoustic wave temperature sensor |
| abstract | A non-linear self-correcting resonance type surface acoustic wave temperature sensor comprises a substrate, an interdigital transducer, a first metal reflection grating array and a second metal reflection grating array. The acoustic surface wave on the substrate has natural unidirectionality in the phase velocity propagation direction, energy flow angle PFA exists in the group velocity propagation direction and the phase velocity propagation direction, and the absolute PFA is less than or equal to 10 degrees; the acoustic aperture direction of the interdigital transducer, the first metal reflection grating array and the second metal reflection grating array is vertical to the phase velocity propagation direction, and the bus bar direction of the interdigital transducer is parallel to the PFA direction of the energy flow angle; the resonant surface acoustic wave temperature sensor designed in the way has two resonance peaks of low frequency and high frequency, the invention realizes the nonlinear self-correction of the sensor by utilizing the two characteristic resonance peaks of the low frequency and the high frequency through a self-differential method, keeps the small volume of a single device, simultaneously avoids the problem that the frequency signal demodulation is influenced by a wireless channel when the single resonance peak of the existing single resonator is used, and realizes the calibration-free in the using process of the sensor. |
| priorityDate | 2020-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.