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:
Nov. 22, 2011
Filed:
Mar. 19, 2010
Tsunehiko Imamura, Nagano, JP;
Akira Kamiya, Kanagawa-Ken, JP;
Shigeru Sato, Tokyo, JP;
Juei Igarashi, Kanagawa-Ken, JP;
Tsutomu Yamate, Kanagawa-Ken, JP;
Tsunehiko Imamura, Nagano, JP;
Akira Kamiya, Kanagawa-Ken, JP;
Shigeru Sato, Tokyo, JP;
Juei Igarashi, Kanagawa-Ken, JP;
Tsutomu Yamate, Kanagawa-Ken, JP;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Tamagawa Seiki Co., Ltd., Nagano, JP;
Abstract
An apparatus for azimuth measurements is provided. The apparatus comprises a housing and a plurality of gyro sensors aligned in the housing. Each of the plurality of gyro sensors has an input axis for angular velocity measurements. There is provided a drive unit for rotating each of the plurality of gyro sensors about a rotation axis. Each of the plurality of gyro sensors changes orientation of the input axis with the drive unit.