http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108508397-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R15-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R35-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R19-0092 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R19-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R15-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R35-02 |
| filingDate | 2018-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108508397-B |
| titleOfInvention | A kind of comparator for ac current measurement |
| abstract | The invention discloses a kind of comparators for ac current measurement, comparator includes sensing head, preamplifier, power expander and measuring resistance, and sensing head includes annular detection iron core, detection winding, internal layer magnetic screen iron core, inside and outside layer secondary winding and outer layer magnetic screen iron core；Detection winding is wound on annular detection iron core, the annular detection iron core for being wound with detection winding is placed in the cavity of the internal layer magnetic screen iron core with toroidal cavity, internal layer secondary winding is around in internal layer magnetic screen iron core, it is wound with the internal layer magnetic screen iron core of internal layer secondary winding, then it is integrally placed in the cavity of the outer layer magnetic screen iron core with toroidal cavity, is around with outer layer secondary winding in outer layer magnetic screen iron core.Alternating current magnetic potential balance system based on two-stage current transformer principle is formed by internal layer magnetic screen iron core, inside and outside layer secondary winding and outer layer magnetic screen iron core, measurement accuracy is high；The dual magnetic shielding iron core structure anti-interference ability that ectonexine magnetic screen iron core is constituted is stronger. |
| priorityDate | 2018-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.