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Micro vibration gyroscope sensitive unit with high MTBF and gyroscope

A technology of vibrating gyroscopes and sensitive units, applied in the field of gyroscopes, can solve problems such as size reduction, bulky volume, and difficult processing

Pending Publication Date: 2021-01-12
北京中科航芯科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages: complex structure, bulky and difficult to process
However, the size of the pins, the form factor of the connector, and the passive / active components on the PCB8 become the main obstacles to size reduction
Because it is difficult to arrange multiple pins + components in a small plane space

Method used

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  • Micro vibration gyroscope sensitive unit with high MTBF and gyroscope
  • Micro vibration gyroscope sensitive unit with high MTBF and gyroscope
  • Micro vibration gyroscope sensitive unit with high MTBF and gyroscope

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specific Embodiment

[0075] A specific embodiment of the present invention is as follows:

[0076] A sensitive unit suitable for miniaturization, high MTBF, and low production cost Coriolis gyroscope design, including a wine glass-shaped resonant oscillator 1, the resonant oscillator includes a wine glass part and a support located outside the wine glass part Rod, one end of the support rod is fixedly connected to the outer side of the bottom of the wine glass; the goblet-shaped resonant vibrator may or may not include the base of the goblet. A plurality of piezoelectric ceramics 2 are attached to the vertical wall at the bottom of the wine glass, that is, the vertical cylindrical wall at the end of the wine glass near the support rod. The number of piezoelectric ceramics 2 is a multiple of 2, preferably 8, and is divided into 2 groups, each group having the same number of piezoelectric ceramics. One group is responsible for driving and measuring the first-order mode, and the other group is respo...

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Abstract

The invention provides a micro vibration gyroscope sensing unit with high MTBF and a gyroscope, relates to the technical field of gyroscopes, and aims at effectively increasing the MTBF of the gyroscope, reducing the cost and conveniently realizing an integrated sensing unit with a smaller size. The sensitive unit comprises a shell, a sensitive unit base and a harmonic oscillator, the shell is fixedly connected with the sensitive unit base, the harmonic oscillator is arranged in the shell, the sensitive unit base is made of an insulating material, and a plurality of conductive structures for transmitting piezoelectric signals are arranged in the sensitive unit base; the conductive structure is in sealed connection with the sensitive unit base; a plurality of piezoelectric ceramics are arranged on the vertical outer wall of the harmonic oscillator; the piezoelectric ceramics are connected with the corresponding conductive structures through wires. The technical scheme provided by the invention is suitable for the design and manufacturing process of the gyroscope.

Description

【Technical field】 [0001] The invention relates to the technical field of gyroscopes, in particular to a micro vibrating gyroscope sensitive unit and a gyroscope with high MTBF. 【Background technique】 [0002] The angular rate or angle of rotation can be measured by at least three physical phenomena, namely the conservation of angular momentum, the Sagnac effect, and the Coriolis force. In its most common form, a gyroscope is a device that uses one of these phenomena to measure or maintain orientation and angular velocity. The measurement of the gyroscope's angular rotation rate can be integrated over time to determine the change in the gyroscope's angular orientation. For example, gyroscopes may be used in applications such as inertial navigation systems (INS), inertial measurement units (IMUs), platform stabilization, ground vehicle attitude control systems (ACS), drilling survey instruments, aircraft, ships, spacecraft, and / or other applications. [0003] Coriolis vibrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/5691G01C19/5783
CPCG01C19/5691G01C19/5783
Inventor 薛玉
Owner 北京中科航芯科技有限责任公司
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