Patents Examined by Brad Bennet
  • Apparatus for azimuth measurements using gyro sensors
    Patent number: 8061048
    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.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: November 22, 2011
    Assignees: Schlumberger Technology Corporation, Tamagawa Seiki Co., Ltd.
    Inventors: Tsunehiko Imamura, Akira Kamiya, Shigeru Sato, Juei Igarashi, Tsutomu Yamate