| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-05 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-4244
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-416
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-242 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-05 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-04 |
| filingDate |
1997-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2001-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2001504714-A |
| titleOfInvention |
Ferromagnetic foreign matter inspection method and apparatus |
| abstract |
(57) Abstract: A method and apparatus for detecting a response magnetic field from an iron-based object held in an inspection area by applying a time-varying magnetic field with a weak intensity to a selected portion of a host Is disclosed. The excitation field coil is designed to produce a limited field region within the region to be inspected as well as a region of the magnetic field near zero. Each sensor is located in this near-zero field range to reduce the effects of the applied field. The effect of this applied magnetic field is further reduced by using a reference sensor, a magnetic field compensation coil and a feedback loop. The magnetic gradient measured by these sensors is processed to clarify the position and characteristics of the iron-based object. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013019901-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006524086-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4901470-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007518483-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019524269-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012516449-A |
| priorityDate |
1996-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |