Amorphous Metal Cold Finger Thermal Loss Reduction
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Solution Overview
Problem
Existing detection devices face challenges in achieving high thermal efficiency while maintaining a robust and simple construction, as thin cold fingers used for cooling can deform, leading to significant losses in optical performance due to thermal leaks and excessive cooling energy expenditure.
Innovation Solution
The use of amorphous metallic alloys for the side walls of the cold finger, which reduces thermal conductivity and maintains mechanical strength, thereby minimizing thermal losses and ensuring effective thermal insulation and mechanical integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the walls of the cold finger are made thin to reduce thermal conductance and thermal leaks, then thermal efficiency is improved, but the mechanical rigidity of the cold finger deteriorates causing deformation
Solution Approach 1:
The patent changes the material parameters of the cold finger walls by using amorphous metallic alloys instead of conventional crystalline materials. This material substitution allows achieving lower thermal conductivity (reducing thermal losses by at least 30%) while maintaining adequate mechanical strength and rigidity to prevent deformation during operation.
2Use of energy by stationary object
If the wall thickness is reduced to minimize cooling energy expenditure, then thermal insulation is improved, but the structural integrity and resistance to deformation deteriorates
Solution Approach 1:
The patent employs amorphous metallic alloys which exhibit composite-like properties combining low thermal conductivity with high mechanical strength. This material choice enables the cold finger walls to be thin (reducing cooling energy expenditure) while maintaining sufficient structural integrity and resistance to deformation under operational conditions.
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 decreases thermal losses by at least 30% compared to traditional materials, maintaining the operating temperature with reduced cooling energy expenditure and preventing deformation, thus enhancing the overall performance of the detection device.
Implementation Method 1
The side walls of the cold finger comprise a part formed by an amorphous metallic alloy... reduces thermal conductivity and maintains mechanical strength, thereby minimizing thermal losses and ensuring effective thermal insulation
Data Source
Figure 1
Figure 2
AI summary
The detection device includes a cold finger 1 that provides the thermal connection between a detector 2 and a cooling system 3. The cold finger 1 has at least one side wall formed at least partially by a region of the amorphous metal alloy. Advantageously, the entire cold finger (1) is made of the amorphous metal alloy.