Multiaxial Gyroscope Vibration Blocks Enhance Signal Intensity
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Solution Overview
Problem
Existing multiaxial gyroscopes face limitations in increasing the intensity of sensed signals due to restricted sensing area and mass, which hampers the effective measurement of angular velocity.
Innovation Solution
The introduction of vibration blocks on the inner sidewall of the ring and elastic connecting parts between the ring and a substrate increases the sensing area and mass, enhancing the Coriolis force and driving amplitude, thereby amplifying the sensed signals through Cos ψ and Sin ψ resonance modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If vibration blocks are added on the inner sidewall of the ring, then sensing area and sensing mass are increased, but device complexity is increased
Solution Approach 1:
The ring structure is segmented by adding multiple vibration blocks (at least three) on its inner sidewall. These blocks divide the sensing area into multiple zones, each contributing to the overall sensing capability. The segmentation increases the effective sensing area and mass without requiring a complete redesign of the entire ring structure.
Solution Approach 2:
The vibration blocks are nested within the ring structure, positioned on the inner sidewall. This nested configuration allows the blocks to be integrated into the existing ring geometry, maximizing the use of available space while increasing sensing area and mass without proportionally increasing device complexity.
2Weight of moving object
If elastic connecting parts are introduced between the ring and substrate, then sensing mass and Coriolis force are increased, but device complexity is increased
Solution Approach 1:
Elastic connecting parts are introduced as intermediary elements between the ring and the substrate. These connectors serve as mediators that transmit mechanical forces while providing flexibility. The elastic nature of these connectors allows them to deform under Coriolis force, thereby increasing the effective sensing mass without requiring direct rigid attachment that would complicate the device structure.
3Power
If the number of vibration blocks is increased, then driving amplitude and signal intensity are enhanced, but manufacturing precision requirements are increased
Solution Approach 1:
The vibration blocks are designed with specific local properties optimized for their sensing function. Each block has tailored dimensions, material characteristics, and positioning that maximize its contribution to driving amplitude. This local optimization allows achieving high driving amplitude without requiring extremely tight manufacturing tolerances across the entire device.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration effectively enhances the intensity of sensed signals by increasing the sensing area and driving amplitude, improving the accuracy and range of angular velocity measurement.
Implementation Method 1
each point on the ring 10 will experience a Coriolis force FC, which is equal to m·V×Ω
Implementation Method 2
the Cos ψ and Sin ψ resonance mode adopted by the present invention can increase the driving amplitude
Data Source
AI summary
The present invention relates to a multiaxial gyroscope, which comprises a vibration-sensing device, a plurality of elastic connecting parts, a first substrate, and a plurality of electrodes. The first ends of the elastic connecting parts are adapted on the periphery of the vibration-sensing device. The sidewall of the first substrate connects with the second ends of the elastic connecting parts. The plurality of electrodes is located on the periphery of the vibration-sensing device and is opposite to the plurality of elastic connecting parts. The vibration-sensing device comprises a ring and a plurality of vibration blocks. By means of the vibration blocks, the sensing area as well as the driving amplitude of the gyroscope can be increased effectively. Thereby, the intensity of the sensed signals of the gyroscope can be enhanced.