Cryogenic Thermal Link Support for Vibration-Isolated Sample Stages
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Solution Overview
Problem
Cryogenic systems face challenges in isolating samples from vibration caused by cooling systems while maintaining a steady sample temperature, as existing solutions fail to provide a reliable vibration-free environment.
Innovation Solution
The implementation of a cryogenic system with a sample stage aligned with a cooling source, a thermal link operationally coupled between the stage and the cooling source, and a link support engaging the thermal link, which includes multiple stage supports to reduce mechanical energy transmission and optimize thermal conductivity, using flexible and rigid components to isolate vibrations and maintain temperature stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling source is directly connected to a sample stage, then cooling efficiency is improved, but sample vibration increases
Solution Approach 1:
The connection between cooling source and sample stage is segmented into multiple components: a first support structure for the cooling source, a second support structure for the sample stage, and a linkage structure connecting them. This segmentation allows the cooling function to be separated from the vibration transmission path, enabling efficient cooling while isolating the sample from vibrations.
Solution Approach 2:
The linkage structure acts as an intermediary between the cooling source and sample stage. It provides thermal connection for efficient cooling while its specific design (with adjustable arms and connection points) allows it to block or minimize vibration transmission to the sample, thus mediating between cooling efficiency and vibration isolation requirements.
2Stability of the object's composition
If a rigid support structure is used to maintain temperature stability, then thermal conductivity is improved, but mechanical energy transmission to the sample increases
Solution Approach 1:
The support structures are designed with different local qualities: the first support structure for the cooling source and the second support structure for the sample stage have different configurations and properties. This allows each structure to be optimized for its specific function - the cooling source support for thermal stability while the sample stage support for vibration isolation - rather than using a uniform rigid structure throughout.
Solution Approach 2:
The linkage structure includes adjustable arms with adjustable lengths and connection points, allowing the system to be dynamically configured. This adjustability enables optimization of both thermal conductivity and vibration isolation characteristics by changing the geometric configuration, making the support system adaptable to different operational requirements rather than being fixed and rigid.
3Object-affected harmful factors
If vibration isolation components are added to reduce sample vibration, then sample stability is improved, but system complexity increases
Solution Approach 1:
The linkage structure serves multiple functions simultaneously: it provides thermal connection for cooling, acts as a mechanical support, and functions as a vibration isolation mechanism through its adjustable design. By combining these functions into a single multi-functional component rather than adding separate dedicated components for each function, the system achieves vibration isolation without proportionally increasing complexity.
Solution Approach 2:
The support structures and linkage are merged into an integrated assembly where the first support structure, second support structure, and linkage structure work together as a unified system. This merging allows the vibration isolation functionality to be achieved through the coordinated design of the entire support and linkage system rather than requiring additional separate vibration isolation components, thus reducing overall system 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 configuration effectively reduces sample vibrations and maintains a steady temperature, enhancing the performance of cryogenic systems by minimizing mechanical energy transfer to the sample while increasing thermal path cooling power.
Implementation Method 1
at least one thermal link operationally coupled between the sample stage and the cooling source
Implementation Method 2
at least one link support between the cooling source and the sample stage, the link support engaging the thermal link
Data Source
AI summary
Cryogenic analysis systems are provided that can include: at least one sample stage operatively aligned with at least one cooling source; at least one thermal link operationally coupled between the sample stage and the cooling source; and at least one link support between the cooling source and the sample stage, the link support engaging the thermal link. Methods for cooling a sample within a cryogenic analysis system are provided with at least some of the methods including: thermally connecting a cooling source to a sample stage supporting a sample via a thermal link; and supporting the thermal link between the cooling source and the sample stage.