| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6103095de2e3eb0762370bc9d5cbb7ee
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1ad90d71cc7282b31e2f4ab7d192678a |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01D5-2033 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F21-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B7-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01D5-20 |
| filingDate |
2003-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12536ab64145b76615979422cf3202bc |
| publicationDate |
2004-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2004038440-A1 |
| titleOfInvention |
Coil assembly as magnetic field sensor for position determination |
| abstract |
The invention relates to a coil assembly serving as magnetic field sensor, comprising at least one toroid core coil (12) having a closed core (10) that is provided with a coil (11) and is made of a ferromagnetic material, which is amorphous, nanocrystalline or ferritic. The cross section of the core (10) has such a small size that the magnetic field of a magnet (13) that is moved in front thereof provokes a change in core permeability. An evaluation device (14) is used to detect the changing coil inductivity which is altered as a result of the change in core permeability. Very small, economical annular core coils can be used as magnetic field sensor even in a non-ferromagnetic, metal environment. In another embodiment, the toroid core coils are arranged in or on a cylinder wall of a fluid cylinder in order to detect the position of a piston in the interior of the cylinder. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2458322-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011114365-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102803726-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11565051-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019106014-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1944568-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IT-RM20100119-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10941762-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-024119-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111655311-A |
| priorityDate |
2002-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |