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Single axis fiber gyro north seeker

A fiber optic gyroscope and north finder technology, applied in the field of inertia, can solve the problem that the north finding work is not all-round, and achieve the effect of intuitive impression and understanding, simple impression and understanding, and convenient maintenance.

Active Publication Date: 2006-12-13
CHINA NORTH IND NO 205 RES INST
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AI Technical Summary

Problems solved by technology

In the given mathematical model for north-seeking solution, the azimuth angle solution only uses the gyro sampling values ​​at three positions for the final north-seeking solution, and the north-seeking work is not all-round, and can only be done at -90° within an angle range of ~90°

Method used

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  • Single axis fiber gyro north seeker
  • Single axis fiber gyro north seeker
  • Single axis fiber gyro north seeker

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0016] as figure 1 , figure 2 As shown, the preferred embodiment of the present invention includes a single-axis fiber optic gyroscope 1, a rotating shaft 2, a housing 3, a dial 4 with an adjustment screw, a turntable 6 with a direction indicator line 5, two levels 7, a single-chip microcomputer 8, North-finding solution computer 9, connector 10, switch key 11, base 12, stepper motor 13, fastening screw 14, conductive slip ring 15, three angled screws 16, display 17, drive module 18. Fiber optic gyroscope 1 adopts No. 05008 AG·BT (J) type fiber optic gyroscope developed by Ordnance Industry No. The motor and drive module 18 adopt RD-023MS module; the single-chip microcomputer 8 adopts AT89C52 single-chip microcomputer of ATMEL company. The rotating shaft 2 is integrated with the bracket, and the two ends of the rotating shaft 2 a...

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Abstract

The invention discloses a single-axle fiber gyroscope north-searching instrument which comprises a single-axle fiber gyroscope as sensing component, a rotary axle, a direction pointing line, a stepper motor, a monolithic computer and a north-searching computer. Wherein the fiber gyroscope and the direction point line are fixed on the rotary axle, the stepper motor can drive the rotary rotating for obtaining the output signals sent by the fiber gyroscope from different sites; the monolithic computer mainly control the rotating of the rotary axle, the north-searching computer perform data collection and employs its internal mathematics model to process the sampling signal and get the north-searching results. The invention also can calculate out the angle that the invention and target connecting line relative to the north direction.

Description

technical field [0001] The invention belongs to the technical field of inertia, and mainly relates to a gyro north-seeking device, in particular to a north-seeking device using an optical fiber gyro as a sensitive element. technical background [0002] Chinese patent application CN90103687.0 discloses a kind of north finder invented by the 15th Institute of the First Design and Research Institute of the Ministry of Aeronautics and Astronautics of my country. The north finder uses a flexible gyroscope and an accelerometer installed on the turntable as the detection components. The components of the earth's rotation angular velocity at multiple positions are detected by the flexible gyroscope. Combined with the output of the accelerometer at the same position, the solution Calculate the angle between the initial position and the north direction. A stepper motor is used to drive the turntable to rotate to realize the sampling of multiple measurement pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/38G01C19/72
Inventor 梁庆仟周国良黄晓峰张建峰扈宇姝郭栓运陈文建
Owner CHINA NORTH IND NO 205 RES INST
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