发明名称 |
Borehole navigation system |
摘要 |
An omnidirectional borehole navigation system is provided which features a housing for traversing a borehole; a gimbal system including at least one outer gimbal connected to the housing and at least one inner gimbal nested in and connected to the outer gimbal; a solid state three-axis gyro assembly mounted on the inner gimbal; a solid state three-axis accelerometer assembly mounted on the inner gimbal; gyro logic circuits on the inner gimbal responsive to the three-axis gyro assembly to produce the inertial angular rate about each gyro input axis; accelerometer logic circuits on the inner gimbal to produce the non-gravitational acceleration along each accelerometer input axis; and a microprocessor responsive to the gyro logic circuits and the accelerometer logic circuits for determining the attitude and the position and velocity of the housing in its borehole.
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申请公布号 |
US2005022404(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20030632717 |
申请日期 |
2003.08.01 |
申请人 |
ASH MICHAEL E.;MARTORANA RICHARD T. |
发明人 |
ASH MICHAEL E.;MARTORANA RICHARD T. |
分类号 |
G01C9/00;G01C19/00;G01V1/52;G01V11/00;(IPC1-7):G01C19/00 |
主分类号 |
G01C9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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