http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110632537-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01H9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01H13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01H9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01H13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-02 |
| filingDate | 2019-09-27^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-10-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110632537-B |
| titleOfInvention | Method for testing direct-current magnetic field intensity |
| abstract | The invention discloses a method for testing the intensity of a direct-current magnetic field, which comprises a sinusoidal signal generator, a signal amplitude amplification module, a laser vibration meter, an NI acquisition card and a transverse field excited magnetic field sensor, wherein the sinusoidal signal generator is connected with the signal amplitude amplification module; the method has the advantages that the method judges the intensity of the direct-current magnetic field through the resonance frequency of the magnetic field sensor under the excitation of the transverse field, and overcomes the influence of temperature on the magnetic field sensor; the direct-current magnetic fields in different strength ranges are judged through the resonance frequencies of the magnetic field sensor in three different vibration modes, so that the accurate test of the direct-current magnetic field strength is realized; and because the positive electrode and the negative electrode on the magnetic field sensor are positioned on the same side of the piezoelectric material layer, all the electrodes and the leads are arranged at the rear end of the magnetic field sensor, the interference and the attenuation of the electrodes on a magnetic field detection signal are eliminated, and the accuracy of the magnetic field intensity test is further ensured. |
| priorityDate | 2019-09-27^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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