Atomic Sensor Self-Alignment Using Pins and Guide Holes
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Solution Overview
Problem
Existing atomic clock manufacturing methods require laborious manual alignment of optical and electrical components, leading to high costs and susceptibility to errors due to shock and vibration.
Innovation Solution
A self-alignment mechanism using alignment pins and guide holes in covers and a center structure-cell to automatically align atomic sensor components, reducing manual labor and improving component stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual alignment methods are used to assemble atomic clock components, then component alignment accuracy can be adjusted, but manufacturing cost and labor time increase significantly
Solution Approach 1:
The patent implements self-alignment features including guide holes, alignment pins, and self-centering mechanisms that automatically position components during assembly without requiring manual adjustment. The vapor cell, optical components, and microwave cavity align themselves through geometric constraints and mechanical guides, eliminating the need for labor-intensive manual alignment while maintaining precision.
Solution Approach 2:
The patent incorporates pre-formed alignment features such as guide holes, mounting protrusions, and reference surfaces that are manufactured into components before final assembly. These preliminary alignment structures ensure that components automatically assume correct positions during assembly, preventing the need for post-assembly adjustment and reducing manufacturing complexity.
2Manufacturing precision
If manual alignment with adjustment screws is used, then component positioning can be fine-tuned, but susceptibility to shock and vibration errors increases
Solution Approach 1:
The self-aligning mechanisms create rigid, fixed positions for optical and electrical components through geometric constraints and mechanical interlocks. Once assembled, components cannot shift or drift due to shock and vibration because their positions are determined by the rigid structure of guide holes, alignment pins, and self-centering features rather than adjustable screws that can loosen.
Solution Approach 2:
The patent employs self-centering spherical or cylindrical features such as ball-and-socket joints and tapered conical interfaces that automatically center components and maintain their positions under shock and vibration. These curved geometric features provide mechanical stability and prevent misalignment better than flat adjustment screw mechanisms.
3Manufacturing precision
If hand manufacturing methods are used to ensure accurate alignment, then component alignment quality improves, but productivity decreases
Solution Approach 1:
The self-aligning assembly system allows multiple components to be assembled simultaneously without requiring sequential manual adjustment. Workers can install vapor cells, optical components, and electrical assemblies in parallel because each component automatically finds its correct position through guide holes and alignment features, dramatically increasing assembly throughput while maintaining alignment quality.
Solution Approach 2:
The patent divides the atomic clock into modular assemblies (vapor cell assembly, optical assembly, microwave cavity assembly) that can be manufactured and pre-aligned separately using simple fixtures, then quickly combined in final assembly. This segmentation allows different teams to work on different modules simultaneously, improving overall productivity while maintaining precision through modular self-alignment features.
Data Source
Figure 1A
Figure 1B~1C
Figure 2
AI summary
Techniques are provided self-aligning components of an atomic sensor including a first cover, a second cover, a structure-cell including a structure and a cell, containing a vapor of atoms, in the structure. Atomic sensor components are aligned in a cover in which they are form fitted into a recess or mounted on a surface of a pedestal. Each cover is aligned with the structure-cell or component(s) therein using guide holes in each of the cover and the structure-cell into each of which an alignment pin is inserted. Due to such alignments, each component is self-aligned with respect another component or to a region of the structure-cell, e.g., the cell or an atomic vapor in the cell.