Portable fibre optic gyroscope north seeker

Abstract

The invention discloses a portable fibre optic gyroscope (FOG) north seeker, comprising a circular installing plate and a rotating shaft vertically arranged on the circular installing plate, wherein one end of the rotating shaft is connected with the circular installing plate by a bearing in a rotatable manner; a support is fixedly arranged on the rotating shaft; a shell containing the support isfixedly arranged on the circular installing plate; the support is provided with a detecting system, a rotating system and a positioning system; and the detecting system comprises a horizontal accelerometer, a vertical accelerometer and an FOG. The north seeker has the advantages of reliable measurement, small size, convenient carrying, low cost and the like.

Description

Technical field

[0001] The invention relates to the technical field of inertial navigation, in particular to a portable optical fiber gyroscope north finder. Background technique

[0002] The portable gyro north finder is an inertial north finder suitable for outdoor environments. It provides direction information such as the carrier's north included angle and attitude angle. It has the characteristics of light weight, small size and high accuracy.

[0003] North finder generally uses two-position method, four-position method, and multi-position method to work in north finder. Among them, north finder using the principle of four-position method is more commonly used. In this four-position north finder device, a single gyroscope and double accelerometer are generally set on the indexing system. After the indexing system is rotated to four positions, the gyroscope and accelerometer are used to measure the north finder, and then the north finder north direction is calculated. Find no...

Examples

Embodiment Construction

[0023] The structure of the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0024] When implemented, such as Figure 1 to Figure 3 As shown, a portable fiber optic gyroscope north finder includes a mounting disc 1, a rotating shaft 2 vertically arranged on the mounting disc 1, one end of the rotating shaft 2 is rotatably connected to the mounting disc 1 through a bearing 3, and the rotating shaft 2 A bracket 4 is fixedly provided, and the mounting disc 1 is also fixedly provided with a housing 5 containing the bracket 4 therein; the bracket 4 is provided with a detection system, a rotation system, and a positioning system; the detection system includes a horizontal arrangement The accelerometer 6, a vertically arranged accelerometer 7 and a fiber optic gyroscope 8. The rotating system includes a motor 9 fixed on a bracket, a movable gear 10 connected to the motor 9 and driven by the motor 9 to rotate, so The ...

Technical field

[0001] The invention relates to the technical field of inertial navigation, in particular to a portable optical fiber gyroscope north finder. Background technique

[0002] The portable gyro north finder is an inertial north finder suitable for outdoor environments. It provides direction information such as the carrier's north included angle and attitude angle. It has the characteristics of light weight, small size and high accuracy.

[0003] North finder generally uses two-position method, four-position method, and multi-position method to work in north finder. Among them, north finder using the principle of four-position method is more commonly used. In this four-position north finder device, a single gyroscope and double accelerometer are generally set on the indexing system. After the indexing system is rotated to four positions, the gyroscope and accelerometer are used to measure the north finder, and then the north finder north direction is calculated. Find no...

Examples

Embodiment Construction

[0023] The structure of the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0024] When implemented, such as Figure 1 to Figure 3 As shown, a portable fiber optic gyroscope north finder includes a mounting disc 1, a rotating shaft 2 vertically arranged on the mounting disc 1, one end of the rotating shaft 2 is rotatably connected to the mounting disc 1 through a bearing 3, and the rotating shaft 2 A bracket 4 is fixedly provided, and the mounting disc 1 is also fixedly provided with a housing 5 containing the bracket 4 therein; the bracket 4 is provided with a detection system, a rotation system, and a positioning system; the detection system includes a horizontal arrangement The accelerometer 6, a vertically arranged accelerometer 7 and a fiber optic gyroscope 8. The rotating system includes a motor 9 fixed on a bracket, a movable gear 10 connected to the motor 9 and driven by the motor 9 to rotate, so The ...

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