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High-density floated gyro strap-down inertial measurement unit

A technology of a liquid floating gyroscope and a measuring device, which is applied in directions such as navigation through velocity/acceleration measurement, can solve the problems of difficult tactical missile systems, low vibration resistance, and large weight, and achieves reduction in volume and weight and measurement accuracy. Improve and meet the effect of small volume

Inactive Publication Date: 2010-06-23
国营三四〇五厂
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Problems solved by technology

[0003] At present, the relatively mature one is the strapdown inertial measurement device based on mechanical gyroscope. This kind of inertial measurement device is large in size and low in vibration resistance, and it is difficult to meet the requirements of small size, light weight and high vibration resistance in tactical missile systems; The newly developed laser gyro strapdown inertial measurement device and the closed-loop fiber optic gyro strapdown inertial measurement device also have the disadvantages of large volume and heavy weight.

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Embodiment Construction

[0016] The high-density liquid floating gyro strapdown inertial measurement device of the present invention will be further described in detail below in conjunction with the drawings and embodiments, but it is not used as a basis for any limitation of the present invention.

[0017] Example. The high-density liquid floating gyro strapdown inertial measurement device of the present invention is as figure 1 As shown, the housing bracket 1 is included, and the housing bracket 1 is in the shape of a cylinder. The housing bracket 1 is respectively provided with three gyroscope mounting planes X, Y, and Z and three accelerometer mounting planes. A liquid floating gyroscope is installed, and the liquid floating gyroscope includes an X-axis liquid floating gyroscope 4, a Y-axis liquid floating gyroscope 5, and a Z-axis liquid floating gyroscope 6; a quartz flexible accelerometer is installed on the accelerometer installation plane, and the quartz The flexible accelerometers include a...

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Abstract

The invention discloses a high-density floated gyro strap-down inertial measurement unit, which comprises a shell bracket (1). The shell bracket (1) is provided with X, Y and Z gyroscope mounting planes and three accelerometer mounting planes respectively; the gyroscope mounting planes are provided with floated gyroscopes; the accelerometer mounting planes are provided with quartz flexible accelerometers; the shell bracket (1) is also provided with a secondary combination power supply (2) and a circuit board; the secondary combination power supply (2), the circuit board, the floated gyroscopes and the quartz flexible accelerometers are connected through internal cables to form a measurement circuit; and the shell bracket (1) is in sealing connection with a cover board (3) through a bolt. The invention provides the high-density floated gyro strap-down inertial measurement unit to meet the requirements of a tactical missile system on small volume and good anti-vibration property of the strap-down inertial measurement device; and the unit also has the characteristics of light weight, simple structure and convenient processing.

Description

technical field [0001] The invention relates to a test device, in particular to a high-density liquid floating gyro strapdown inertial measurement device. Background technique [0002] Inertial navigation is an important technical discipline, and it is one of the key technologies for many aircraft, ships, missiles and other carriers to successfully complete navigation and control tasks. In recent decades, inertial navigation technology has developed rapidly. In my country, inertial navigation technology has been applied in the navigation and positioning of aviation, aerospace, navigation and land vehicles. Because the strapdown inertial navigation system has many advantages compared with the platform type inertial navigation system, it has also received more and more attention from various countries. [0003] At present, the relatively mature one is the strapdown inertial measurement device based on mechanical gyroscope. This kind of inertial measurement device is large in ...

Claims

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Application Information

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IPC IPC(8): G01C21/18
Inventor 叶松张先全杨通兰何英茹毅李春野孟乐中符立军谢雪峰
Owner 国营三四〇五厂
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