Gyroscopic Sensor Support Rods With Bulged Ends
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Solution Overview
Problem
Conventional gyroscopic sensors exhibit poor mechanical behavior due to the structural limitations of their conducting rods, which affect the vibration frequency and stability of the device.
Innovation Solution
The gyroscopic sensor design incorporates support rods with bulged ends that are non-intrusively fastened to both the electrode carrier and the base, ensuring a coplanar electrical and mechanical connection, and are soldered to the base for improved vibration mode control, while the electrode deposition method uses sputtering to minimize mechanical interference and enhance vacuum sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cylindrical piles are used to form conducting rods, then the structure is simple to manufacture, but the mechanical behavior is poor
Solution Approach 1:
The support rod is divided into three distinct parts: a first end for anchoring to the base, a intermediate portion with controlled vibration characteristics, and a second end for connection to the electrode carrier. This segmentation allows each part to be optimized independently for its specific function, improving overall mechanical behavior while maintaining manufacturing simplicity.
Solution Approach 2:
Different portions of the support rod are given different structural characteristics. The intermediate portion has specific dimensional parameters (length, diameter) that differ from the end portions, creating local variations in stiffness and vibration properties. This local quality optimization improves mechanical behavior without complicating the overall manufacturing process.
2Strength
If support rods are fastened to the electrode carrier, then mechanical support is provided, but vibration frequency control is compromised
Solution Approach 1:
The support rod's intermediate portion has specifically controlled dimensional parameters (length L2 and diameter d2) that are optimized to provide mechanical support while minimizing interference with the electrode carrier's vibration modes. By carefully selecting these parameters, the rod acts as a mechanical support that is dynamically decoupled from the resonant frequency of the electrode carrier.
3Device complexity
If conventional conducting rod structures are used, then device complexity is low, but frequency plane stability is poor
Solution Approach 1:
The segmented support rod structure with distinct functional zones (anchoring end, intermediate portion, connection end) provides better frequency plane stability by creating a mechanical structure that is less sensitive to variations in assembly tolerances and material properties, without significantly increasing device complexity.
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 design enhances the mechanical behavior and frequency control of the gyroscopic sensor, reducing production costs and improving performance by eliminating issues related to vias, bushings, and adhesives, thereby stabilizing the frequency plane and maintaining a controlled atmosphere.
Implementation Method 1
the electrode deposition method uses sputtering to minimize mechanical interference and enhance vacuum sealing
Data Source
Figure 1~2
AI summary
The invention relates to a gyroscopic sensor comprising a sensitive element designed to vibrate; an electrode carrier capable of carrying electrodes for exciting the sensitive element and electrodes for detecting the vibration of the sensitive element; and support rods designed to support the electrode carrier, characterized in that the support rods have at least one bulged end.