| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_182a318bd9eeded9718403e564971872 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01C17-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R35-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01C25-005 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B47-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B47-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V3-18 |
| filingDate |
2014-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d66068e75b380be1eaf2577df7e09d42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a7e018aa3878f07978d419b3c6c7edd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c35884b999633fc2a26f786058b4ff76 |
| publicationDate |
2015-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2015095180-A1 |
| titleOfInvention |
System and method of directional sensor calibration |
| abstract |
An improved total field calibration system and method is disclosed for reducing the rotational misalignment between magnetic and gravity sensors in a directional sensing system. The effect of variation of surface components of the Earth's magnetic field during the calibration process on magnetometer misalignment may be completely eliminated by requiring the magnetic dip derived from the sensing system to match that of the Earth's field obtained from a reference source. The calibration process can be performed without monitoring the declination change during the calibration process. Directional sensing systems can be calibrated accurately during a period when the Earth's magnetic field changes rapidly. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110967144-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113153270-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11519264-B1 |
| priorityDate |
2013-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |