The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2018
Filed:
Jun. 09, 2014
China Metallurgical Geology Bureau Geological Exploration Institute of Shandong Zhengyuan, Jinan, Shandong, CN;
Jiandong Gao, Shandong, CN;
Abstract
A tripod, a vertical coil and a total-field magnetometer are utilized to measure a geomagnetic field Twithout an additional magnetic field imposed, as well as two composite magnetic field values Tand Twhen the geomagnetic field is added with a vertical upward magnetic field Tand a double vertical upward magnetic field 2T, respectively. Calculate a vertical component Z, a horizontal component H and a geomagnetic inclination I of the geomagnetic field. Set up a horizontal coil such that a geometric center of the horizontal coil coincides with a geometric center of the vertical coil. Use the total-field magnetometer to measure two composite magnetic field values Tand Tafter the geomagnetic field has been added with a horizontal forward magnetic field and a horizontal reverse magnetic field, respectively. Calculate a geomagnetic declination D.
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