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Contra rotating positioning mechanism for eliminating dynamic regulating gyroinclinometer inertia device constant value error

A technology of gyro inclinometer and inertial device, which is used in surveying, wellbore/well components, earth-moving drilling, etc., can solve the problems of real-time, accurate compensation, difficult to grasp, and low system measurement accuracy.

Inactive Publication Date: 2007-01-03
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

However, the software compensation method cannot grasp the influence of uncontrollable factors such as temperature, humidity, pressure, and electromagnetic field on the constant value error term, resulting in low measurement accuracy of the system
Therefore, it is difficult to compensate the constant value error term of the inertial device in real time and accurately during the actual measurement of the moving gyro inclinometer.

Method used

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  • Contra rotating positioning mechanism for eliminating dynamic regulating gyroinclinometer inertia device constant value error
  • Contra rotating positioning mechanism for eliminating dynamic regulating gyroinclinometer inertia device constant value error
  • Contra rotating positioning mechanism for eliminating dynamic regulating gyroinclinometer inertia device constant value error

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Embodiment Construction

[0059] Such as figure 1 , 2 As shown, the present invention is composed of a bearing 1, a lead counterweight 2, a positioning module 3, a torque motor 4, a forward and reverse positioning arm 5, a control circuit 6, and an inertial body assembly 7 composed of a power tuning gyroscope and an accelerometer, The front end of the inertia body assembly 7 is supported by the bearing 1, and the rear end is connected with the torque motor 4. The torque motor 4 is equipped with a special forward and reverse positioning arm 5, the counterweight module 2 is fixed on the housing of the body assembly 7, the positioning module 3 is fixedly connected with the inclinometer housing, and the positioning module 3 has a 0° positioning stopper and a 180° positioning The stopper sends a square wave control signal through the microcontroller, and the torque motor 4 is controlled by the control circuit 6. When the square wave signal is at a high level, the torque motor 4 rotates, and the forward an...

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Abstract

The present invention relates to a counter-rotating location mechanism for eliminating dynamically-tuned gyroscopic clinometer inertia device normal value error. It is mainly composed of the following several portions: bearing, lead counterweight block, location module, torque motor, backward and forward rotating location arm, control circuit and inertia body component. Said invention also provides its working principle and its concrete operation method.

Description

technical field [0001] The invention belongs to the technical field of directional drilling in the petroleum industry, and relates to a dynamic gyro inclinometer for oil well inclination measurement, in particular to a counter-rotation positioning mechanism for eliminating the constant value error of the inertial device of the dynamic gyro inclinometer, which is suitable for dynamic The adjustable gyro inclinometer eliminates the constant value error of its inertial device when it measures in real time downhole. Background technique [0002] The dynamic gyro inclinometer is a precision inclinometer system, and its core - the inertial body component adopts the cutting-edge technology of aviation inertial navigation. The inertial body component consists of a dynamic tuning gyroscope and two accelerometers, in which the gyroscope is used to sense the angular velocity component of the earth's rotation, and the accelerometer is used to sense the gravitational acceleration compone...

Claims

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Application Information

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IPC IPC(8): E21B47/02E21B47/0236
Inventor 郦吉臣房建成杨胜李红
Owner BEIHANG UNIV
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