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Single axis fiber gyro north seeker

A technology of fiber optic gyroscope and north-finder, applied in the inertial field, can solve the problem that the north-seeking work is not all-round, and achieve the effects of intuitive impression and understanding, simple circuit structure, and high circuit replaceability

Active Publication Date: 2009-08-19
CHINA NORTH IND NO 205 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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°

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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-axis fiber optic gyro north finder, which mainly includes a single-axis fiber optic gyroscope as a sensitive element, a rotating shaft, a direction indicating line, a stepping motor, a single-chip microcomputer, a north seeking solution computer, the fiber optic gyroscope and the direction indicating line. Fixed on the rotating shaft, the stepping motor can drive the rotating shaft to rotate, so as to obtain the output signals of the fiber optic gyroscope at different positions; the single-chip microcomputer mainly completes the control of the rotation of the rotating shaft, and the north-seeking computer mainly completes the data sampling, and uses its built-in The mathematical model of the sampled signal is processed and solved to obtain the north-seeking result. The present invention can not only accomplish the simple north-seeking function, but also realize the included angle of the connecting line between the present invention and the target relative to the north direction. The main advantages of the present invention are that the structure is simple, and the use is convenient and intuitive.

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. Background technique [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 positions. In the drive of...

Claims

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Application Information

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Patent Type & Authority Patents(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