Atomic Oscillator Thermal Insulation for Magnetic Shielding
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Solution Overview
Problem
Existing atomic oscillators face inefficiencies in heating the atom cell due to heat transfer issues, where heat from the heating device is not effectively directed to the atom cell, leading to suboptimal heating and oscillation characteristics.
Innovation Solution
The implementation of a thermally insulating member between the heating device and the atom cell, along with a container structure that shields magnetism and fixes the components with screws, to prevent heat transfer to unwanted areas and ensure efficient heating of the atom cell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a heater accommodating element and heater containing lid are used to shield magnetism, then magnetism produced by the heating device is shielded, but heat is transferred to the heater containing lid on the side opposite the atom cell, reducing heating efficiency
Solution Approach 1:
The heater accommodating element is divided into a heater containing body and a heater containing lid as separate components. This segmentation allows the insertion of thermal insulation members between them, enabling magnetism shielding while preventing heat transfer to the lid.
Solution Approach 2:
A thermal insulation member is introduced as an intermediary substance between the heater containing body and the heater containing lid. This intermediary blocks heat transfer while allowing the magnetic shielding function to be maintained by the metallic structure.
2Object-affected harmful factors
If the heater containing lid is disposed on the side opposite the atom cell to shield magnetism, then magnetism is shielded, but the atom cell cannot be efficiently heated due to heat loss
Solution Approach 1:
The heater accommodating element is segmented into separate body and lid portions, allowing the lid to be positioned for magnetism shielding while the body remains in thermal contact with the atom cell for efficient heating.
Solution Approach 2:
The thermal insulation member acts as a mediator that selectively blocks heat transfer to the lid while allowing the heating function to be maintained through the body-atom cell interface.
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 allows for efficient heating of the atom cell by minimizing heat loss to other components, thereby enhancing the oscillation characteristics and stability of the atomic oscillator.
Implementation Method 1
a container that includes a first member that is disposed between the heating device and the atom cell and shields magnetism and a second member that is disposed on a side opposite the atom cell with respect to the heating device and shields magnetism to shield magnetism produced by the heating device
Implementation Method 2
a thermally insulating member disposed between the first member and the second member and shifted from the heating device toward the second member
Implementation Method 3
a heating device that heats the atom cell
Data Source
AI summary
An atomic oscillator includes an atom cell that accommodates an alkali metal atom, a heating device that heats the atom cell, a container that includes a first magnetism shielding member that is disposed between the heating device and the atom cell and a second magnetism shielding member that is disposed on the side opposite the atom cell with respect to the heating device to shield the atom cell from magnetism produced by the heating device, and a thermally insulating member disposed between the first member and the second member.