Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Patent
1988-02-05
1989-07-04
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
342451, 324377, G01S 504
Patent
active
048455032
ABSTRACT:
A method and apparatus is disclosed for accurately determining the spatial orientation of planar and linear features expressed along the exterior surface of a core sample. The core sample is positioned in a plurality of sequentially generated orthogonal electromagnetic fields. The core sample is retained by a device which allows complete rotation of the core sample about a predetermined axis while positioned in the electromagnetic fields. A stylus containing an antenna for detecting the electromagnetic fields is used to trace surficial features along the core exterior while simultaneously detecting components of the generated electromagnetic fields. The stylus provides an output to an analyzing device which calculates the coordinates of points along the core features. The coordinates are passed to a computer which has also been monitoring the rotation angle of the core. The data is stored and later used to calculate the spatial orientations of the structures with respect to a known reference on the core sample.
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Adam Hamish G.
Peterson P. Eric
Sharer Peter J.
Blum Theodore M.
Kane Barry C.
Western Atlas International Inc.
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