Active-type semi-strapdown inertial measuring device applicable to high-rotation ammunition

A semi-strapdown and active technology, applied in ammunition testing, ammunition, navigation through speed/acceleration measurement, etc., can solve the problems of difficult parameter design and low versatility, so as to reduce the difficulty of design and broaden the scope of application , Solve the effect of difficult design

Inactive Publication Date: 2012-04-25
ZHONGBEI UNIV
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  • Abstract
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Problems solved by technology

[0004] The present invention provides an active semi-strapdown inertial measurement device suitable for high-rotation ammunition in order to solve the problems of difficulty in designing system parameters and low versatility of the existing semi-strapdown inertial measurement device

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  • Active-type semi-strapdown inertial measuring device applicable to high-rotation ammunition
  • Active-type semi-strapdown inertial measuring device applicable to high-rotation ammunition

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Embodiment Construction

[0010] An active semi-strapdown inertial measurement device suitable for high-rotation ammunition, including a semi-strapdown structural mechanical support module, a micro-inertial measurement combined anti-rotation module, and an inertial attitude calculation module;

[0011] The mechanical support module of the semi-strapdown structure includes a semi-strapdown outer cylinder 1, a semi-strapdown inner cylinder 2, a rotating shaft 3, a support bearing 4, and a slip ring; the micro-inertial measurement combined anti-rotation module includes a speed sensitive unit 5, And the motor control circuit module 6, and the anti-rotation drive motor; the inertial attitude solution module includes a navigation solution circuit module 7 and an inertial measurement combination 8 located in the semi-strapdown inner cylinder 2;

[0012] Among them, the rotating shaft 3 runs through the semi-strapdown inner cylinder 2, one end of the rotating shaft 3 is fixed to the rotor 9 of the anti-rotation...

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Abstract

The invention relates to a semi-strapdown inertial measuring device, and in particular relates to an active-type semi-strapdown inertial measuring device applicable to high-rotation ammunition. According to the invention, the problems of great difficulty in design and lower universality for system parameters of the existing semi-strapdown inertial measuring device are solved. The active-type semi-strapdown inertial measuring device applicable to the high-rotation ammunition comprises a semi-strapdown structure machinery supporting module, a micro-inertial measurement unit rotation-reducing module and an inertial posture calculating module; and the semi-strapdown structure machinery supporting module comprises a semi-strapdown outer cylinder, a semi-strapdown inner cylinder, a rotary shaft, a supporting bearing and a slip ring. According to the invention, a working platform with a relative steady rotation axis direction is created for the micro-inertial measurement unit through the rotation-reducing device which is reasonable in design, the problems of great difficulty in design and lower universality for system parameters of the existing semi-strapdown inertial measuring device are completely and effectively solved, and various measurement requirements of regular high-rotation ammunition can be satisfied.

Description

technical field [0001] The invention relates to a semi-strapdown inertial measurement device, in particular to an active semi-strapdown inertial measurement device suitable for high-spin ammunition. Background technique [0002] The working time of conventional high-speed ammunition is relatively short, but its rotational speed along the axial direction of the projectile is relatively high, generally reaching 20r / s or even higher. In the conventional strapdown inertial measurement system, three accelerometers and three gyroscopes are respectively directly fixed on three orthogonal surfaces of the carrier, and their sensitive directions are perpendicular to each other, that is, the accelerometers are used to sense linear acceleration, and the gyroscopes measure the angular velocity of the carrier. However, the weakness of the micro gyroscope is that it is difficult to meet the high-precision measurement of angular velocity in a wide dynamic range, while the mechanical gyrosco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16F42B35/00
Inventor 刘俊李杰张樨王红亮杨卫王博段晓敏刘喆石云波张晓明郭涛秦丽马喜宏鲍爱达唐军
Owner ZHONGBEI UNIV
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