http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03191870-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_12d24c0a12c3ecdb6d9a47d623d96e76 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R19-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R15-18 |
| filingDate | 1989-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d707117f35e44051b4297ccbb34750a2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db33556dfdca45be76f66de292d98de4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7435f8694cd66194190f1df1b9dfcb63 |
| publicationDate | 1991-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H03191870-A |
| titleOfInvention | Method for detecting current for both ac and dc |
| abstract | PURPOSE: To make it possible to detect a current for both AC and DC over a broad range from small current to large current by exciting an iron core to a point larger than coercive force with high frequency, and detecting the change in high-frequency exciting current due to the magnetic field generated with a cuttent to be detected. n CONSTITUTION: A high-frequency exciting coil 7 is wound around an iron core 1a characterized by excellent rectangurality of magnetic hysteresis and small coercive force. A detecting resistor 8 whose resistance is lower than the reactance of the iron core 1a and the coil 7 is connected to the coil in series. The coil is excited to a point where a magnetic field is stronger than the coercive force by using a high-frequency power supply. When the small magnetic field which is generated with a current to be detected flowing through a conductor 2a that is inserted into the central hole of the iron core 1a is applied under this state, the exciting range on the hysteresis curve of the iron core 1a is moved. Then, the value in the vicinity of the coercive force of the high-frequency exciting current and the maximum value are changed. The change in current is detected as the voltage drop in the resistor 8 or the change in voltage across the coil 7. The current in AC or DC is detected based on the difference in positive and negative absolute values of these values. The instantaneous large current can be detected based on the sum of the absolute values. n COPYRIGHT: (C)1991,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107342578-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2017199676-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107342578-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10483751-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017169062-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013213725-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6316931-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012526981-A |
| priorityDate | 1989-06-23-04:00^^<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/CID23925 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419491185 |
Total number of triples: 23.