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An assembly structure of an inertial measurement combination based on a mems sensor

An inertial measurement and sensor technology, applied in the field of inertial measurement, can solve problems such as mutual interference, heavy mass, unfavorable fine management of electrical parts, etc.

Active Publication Date: 2020-10-20
BEIJING INST OF AEROSPACE CONTROL DEVICES
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  • Claims
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Problems solved by technology

[0003] In the prior art, the acceleration signal and the gyroscope signal are prone to mutual interference during digital-to-analog conversion, and occupy a large space, are heavy in weight, and high in cost. chaotic situation

Method used

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  • An assembly structure of an inertial measurement combination based on a mems sensor
  • An assembly structure of an inertial measurement combination based on a mems sensor
  • An assembly structure of an inertial measurement combination based on a mems sensor

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] see figure 1 , the present invention is an inertial measurement combined assembly structure based on a low-cost MEMS sensor, and its structural principle block diagram consists of accelerometer sensor components, gyroscope sensor components, a gyroscope AD processing circuit, a base and other parts composition. The accelerometer sensor assembly consists of three single-axis MEMS accelerometer circuit boards X, Y, and Z, and the gyroscope sensor assembly consists of three single-axis MEMS gyroscope circuit boards X, Y, and Z.

[0024] The MEMS accelerometer circuit board, the MEMS gyroscope circuit board, and the gyroscope AD signal processing circuit board are fixed on the base by screws. Three MEMS accelerometers are three-axis orthogonal, sensing and outputting combined linear acceleration analog signals and accelerometer temperature analog signals; three ME...

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Abstract

The invention discloses an inertia measurement combination assembling body structure based on a MEMS sensor. The MEMS sensor with low cost is taken as an inertia parameter sensitive component, work ambient temperature of the sensor is subjected to real-time acquisition, digital quantity output of a gyroscope inertia parameter and a temperature signal can be realized, and precision influence on theMEMS device by temperature is reduced, signal interference of digital analog conversion of an accelerometer and a gyroscope can be prevented, and the structure has the characteristics of small volume, low cost, small power consumption, and comprehensive output parameter.

Description

technical field [0001] The invention relates to an inertial measurement combined assembly structure based on a MEMS sensor, belonging to the field of inertial measurement. Background technique [0002] The MEMS inertial measurement combination uses MEMS accelerometers and MEMS gyroscopes as inertial parameter sensitive devices. It has the advantages of small size, light weight, easy integration, low price, and low power consumption. It is widely used in aerospace, smart phones, automotive control, Auxiliary navigation and other fields. Compared with inertial measurement sensors such as lasers and optical fibers, MEMS devices have the characteristics of low precision and sensitivity to temperature changes. Therefore, controlling the ambient temperature of MEMS sensors is an important method to improve the accuracy of MEMS inertial measurement combinations. [0003] In the prior art, the acceleration signal and the gyroscope signal are prone to mutual interference during digi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16
CPCG01C21/16
Inventor 邢立华袁倩李世臻陈团白滢
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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