Modular Vacuum-Tight Beam Enclosure for Easier Atomic Beam Assembly
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Solution Overview
Problem
Existing beam apparatuses, such as atomic clocks, have complex assemblies that require precise alignment and welding of components within a large vacuum envelope, making them challenging and expensive to manufacture.
Innovation Solution
A vacuum-tight enclosure is formed by integrating key elements like a beam input interface, optical interaction volumes, and a microwave cavity, allowing for a modular and self-supporting structure that maintains vacuum without external magnetic shields, using smaller vacuum pumps and passive getter materials, and enabling easy replacement of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large vacuum envelope is used to house the beam apparatus, then the vacuum can be maintained, but the assembly becomes highly complex and expensive due to precise alignment and welding requirements
Solution Approach 1:
The beam apparatus is divided into modular components (microwave cavity, optical interaction volumes, beam enclosure) that can be manufactured separately and then assembled. This segmentation allows each component to be optimized independently while simplifying the overall assembly process, as the modules connect through standardized interfaces rather than requiring complex welding and alignment within a single large vacuum envelope.
2Manufacturing precision
If precise alignment and welding of components within the vacuum envelope is performed, then the beam apparatus can function, but manufacturing becomes challenging and expensive
Solution Approach 1:
Components are pre-assembled and pre-aligned into modular units with built-in alignment features before final integration. The microwave cavity and optical interaction volumes are manufactured as self-contained modules with precision machined interfaces that guide alignment during assembly, eliminating the need for complex in-situ alignment and welding procedures.
3Object-affected harmful factors
If external magnetic shields are used to shield the atomic beam, then magnetic interference is reduced, but the apparatus size and complexity increase
Solution Approach 1:
The magnetic shielding function is integrated into the existing structural components of the beam apparatus, such as the microwave cavity and beam enclosure, rather than adding separate external shields. This merging of functions reduces the overall apparatus volume and simplifies the structure while maintaining magnetic shielding effectiveness.
4Ease of repair
If a modular design with vacuum-tight interfaces is used, then component replacement is simplified, but the vacuum seal integrity must be maintained
Solution Approach 1:
The vacuum system is segmented into modular components with standardized vacuum-tight interfaces (such as CF flanges or bayonet connectors) that allow for tool-free or minimal-tool assembly and disassembly. These interfaces incorporate built-in sealing mechanisms (O-rings, metal seals) that maintain vacuum integrity while enabling rapid component replacement without compromising the vacuum seal.
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 reduces the assembly complexity and cost, allows for smaller size and weight, and simplifies maintenance by eliminating the need for external vacuum envelopes, while maintaining high precision and reducing interference from external influences.
Implementation Method 1
wherein a vacuum is generatable within the vacuum-tight enclosure when a vacuum source is vacuum-tightly attached to the vacuum source interface
Implementation Method 2
a straight hollow beam enclosure for enclosing (or: housing) a beam (the beam being input into the vacuum-tight enclosure at the beam input interface when the vacuum-tight enclosure is in use) between the first optical interaction volume and the second optical interaction volume
Data Source
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AI summary
The invention provides a vacuum-tight enclosure for a beam apparatus, a beam apparatus, and a method for manufacturing a vacuum-tight enclosure. The vacuum-tight enclosure (100) is essentially formed of: a beam input interface (101) for receiving a molecular or atomic beam (7), a first optical interaction volume (140), a microwave cavity (120), a second optical interaction volume (150), a straight hollow beam enclosure (130) for enclosing the molecular or atomic beam (7) between the first optical interaction volume (140) and the second optical interaction volume (150), and a vacuum source interface (109), and a plurality of optical port interfaces (159), such that a vacuum is generatable within the vacuum-tight enclosure (100) when a vacuum source (1080) is vacuum-tightly attached to the vacuum source interface (109), a beam source container (1070) is vacuum-tightly attached to the beam input interface (101) and the plurality of optical port interfaces (159) are vacuum-tightly sealed.