Asymmetrical Micro-Displacement Amplifier Eliminates Transverse Error
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Solution Overview
Problem
Current micro-displacement amplifying apparatuses face challenges in achieving both large displacement magnification and small volume, often compromising on precision or volume, and require additional space for the driver due to symmetrical designs that result in transverse displacement and increased volume.
Innovation Solution
The development of a micro-displacement amplifying apparatus with asymmetrical structures, comprising multiple stages of amplifying units connected by flexible hinges, which are arranged in opposite positions to overlap and eliminate transverse displacement, allowing for greater magnification while reducing the overall volume and enabling the apparatus to be placed inside the magnetostrictive driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an axisymmetrical design is adopted to avoid errors from parasitic movement and temperature load, then measurement precision and reliability are improved, but the volume of the amplifying apparatus increases and magnification capability is reduced
Solution Approach 1:
The patent applies asymmetry by transitioning from a traditional axisymmetrical design to an asymmetric configuration. The asymmetric amplifying apparatus eliminates the need for redundant symmetric structures, reducing volume while maintaining measurement precision through careful design of the asymmetric linkage geometry that compensates for parasitic movements.
Solution Approach 2:
The patent utilizes dimensional optimization by reconfiguring the spatial arrangement of components. The asymmetric design allows for more efficient use of space in three-dimensional configuration, reducing the overall footprint and volume while maintaining the functional requirements for precision measurement.
2Adaptability or versatility
If the volume of the amplifying apparatus is reduced, then adaptability to limited space environments is improved, but the magnification capability and output range are reduced
Solution Approach 1:
The asymmetric configuration enables more efficient space utilization, allowing the apparatus to achieve high magnification within a compact volume. The asymmetric linkage arms are optimized in length and arrangement to maximize displacement amplification while minimizing the overall apparatus volume.
Solution Approach 2:
The patent employs parameter optimization by adjusting the geometric parameters of the asymmetric linkage, such as arm lengths, hinge positions, and connection points. These parameter changes enable the apparatus to achieve high magnification ratios while maintaining a compact size suitable for limited space environments.
3Measurement precision
If a symmetrical structure is used to eliminate transverse displacement, then measurement precision is improved, but the device volume increases and driver placement becomes difficult
Solution Approach 1:
The patent resolves this contradiction by designing an asymmetric structure that inherently eliminates transverse displacement through its geometric configuration. The asymmetric linkage is designed with specific angle and length relationships that cause transverse components to cancel out, achieving precision without requiring symmetric redundancy.
Solution Approach 2:
The asymmetric design incorporates preliminary anti-action by pre-configuring the linkage geometry to counteract transverse displacement effects before they occur. The asymmetric arm arrangements are designed to naturally compensate for parasitic movements, eliminating the need for additional symmetric components to correct these errors.
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 solution achieves greater displacement magnification with reduced volume, eliminates transverse displacement, and improves axial output precision, allowing for the miniaturization of the driver and expanded application environments.
Implementation Method 1
The flexible hinge produces an obvious elastic angular deformation under the action of torque
Implementation Method 2
Precision platforms using drivers of magnetostrictive materials can be widely used in the field of MEMS-nano technology
Data Source
AI summary
A micro-displacement amplifying apparatus comprises two sets of asymmetrical amplifying structures; each set of asymmetrical amplifying structure comprises a plurality of asymmetrical amplifying units connected in series by flexible hinges; the asymmetrical amplifying unit is used for amplifying a micro-displacement; the two sets of asymmetrical amplifying structures are in opposite positions and overlap with each other; the input end and output end are coupled to the asymmetrical amplifying unit by a flexible hinge, respectively; the input end is used for inputting the micro-displacement to the asymmetrical amplifying unit, and the output end is used for outputting the amplified displacement; the two contacting input ends are fixed and coupled to each other, and the two contacting output ends are fixed and coupled to each other. The present disclosure further discloses an amplification method of the micro-displacement amplifying apparatus.