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Low cost, small volum plate micro-inertial measuring system based on MEMS

A micro-inertial measurement and small-volume technology, which is applied in the direction of navigation through speed/acceleration measurement, can solve the problems of high price, large size, and high power consumption, and achieve the effects of reducing production costs, reducing size effects, and reducing volume

Inactive Publication Date: 2007-02-14
BEIHANG UNIV
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  • Abstract
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Problems solved by technology

[0005] The problem solved by the technology of the present invention is to overcome the shortcomings of existing inertial measurement systems such as large volume, high power consumption, and high price, and provide a micro-inertial measurement system with low cost, small volume, light weight, and low power consumption

Method used

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  • Low cost, small volum plate micro-inertial measuring system based on MEMS
  • Low cost, small volum plate micro-inertial measuring system based on MEMS
  • Low cost, small volum plate micro-inertial measuring system based on MEMS

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Embodiment Construction

[0026] Such as figure 1 , 2, the present invention is made up of a plate structure 1, a signal board 2, and a gyro module 3. The signal board 2 is fixed on the plane board 11 according to the orientation determined by the positioning pin 14 through bolts, so as to ensure that the four sides of the signal board 2 are in contact with the plane board 11. The four sides are parallel, and the bolts on the four corners are adjusted with the three-phase level as a reference during installation to ensure that the upper surface of the signal board 2 is parallel to the upper surface of the plane board 11 . The gyroscope module 3 includes an X-direction MEMS gyroscope 31, a Y-direction MEMS gyroscope 32, and a Z-direction MEMS gyroscope 33. The sensitive axes of the X-direction MEMS gyroscope 31 and the Y-direction MEMS gyroscope 32 are shown by dotted arrows, and the sensitive axes of the Z-direction MEMS gyroscope 33 are vertical On the plane plate 11, the gyro module 3 is fixed on the...

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Abstract

A micro inertia measurement system of small volume plate type based on MEMS is prepared as forming plate structure by planar plate, positioning pin and boss; erecting three gyroscopes on planar plate through positioning pin to ensure orthogonality of three sensitive shaft, using three acceleration meters to carry out accurate positioning to ensure orthogonality of sensitive shaft through signal plate and using boss to calibrate positioning of test.

Description

technical field [0001] The invention relates to a low-cost, small-volume plate-type micro-inertial measurement system based on MEMS, which is used to provide the motion parameters (position, speed, attitude) of the measured carrier, and is suitable for micro-aircraft, automobiles, trains, etc., which require small volume and low weight. Lightweight, low-cost motion carrier for inertial measurement systems. Background technique [0002] With the emergence of micro-inertial measurement devices such as MEMS-based micro-gyroscopes and micro-accelerometers, micro-inertial measurement systems have gradually penetrated into our lives. In daily life, the driver can identify his position and heading according to the micro-inertial measurement system to prevent getting lost; the vehicle control system can judge whether the vehicle is slipping and whether it needs to slow down according to the attitude and speed information provided by the inertial measurement system to ensure driving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/16G01C21/18
Inventor 房建成孙宏伟盛蔚李建利张霄张海鹏
Owner BEIHANG UNIV
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