Atomic Oscillator Temperature Compensation for Resonance Stability
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Solution Overview
Problem
Existing atomic oscillators face challenges in maintaining temperature stability of the light source and gas cell, leading to instability in resonance frequency due to rapid temperature changes.
Innovation Solution
An atomic oscillator design that includes a temperature adjusting unit to control the temperature of both the gas cell and light generator based on a predefined relationship between temperature and resonance frequency, minimizing the combined effect of temperature fluctuations on resonance frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If temperature control is implemented to maintain constant temperature of light source and gas cell, then frequency stability of resonance frequency is improved, but device complexity increases
Solution Approach 1:
The patent changes the temperature parameters of the light source and gas cell to specific set values that compensate for each other's effects on resonance frequency. By selecting optimal temperature points where the temperature coefficients of the light source and gas cell have opposite signs, the system achieves frequency stability without requiring complex active temperature control mechanisms.
Solution Approach 2:
The system uses the inherent temperature-frequency relationships of the light source and gas cell to self-compensate for frequency drift. The temperature adjusting unit sets temperatures based on predetermined relationships, allowing the system to maintain frequency stability through passive thermal compensation rather than active control feedback.
2Reliability
If rapid temperature adjustment is implemented to respond to short-period temperature changes, then frequency stability is improved, but control difficulty increases
Solution Approach 1:
The patent pre-determines the temperature-frequency relationships and sets optimal temperature set values before operation. The temperature adjusting unit is configured with predetermined temperature settings that correspond to specific resonance frequency conditions, eliminating the need for real-time calculation or complex control algorithms during operation.
Solution Approach 2:
The system establishes fixed temperature parameters for the light source and gas cell that are determined in advance based on their temperature coefficients. By setting temperatures to specific predetermined values, the system simplifies control while maintaining frequency stability against rapid temperature changes.
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
Stabilizes the resonance frequency by adjusting the temperatures of the gas cell and light generator to specific set points, reducing the impact of temperature changes and enhancing frequency stability.
Implementation Method 1
a light generator that irradiates the gas cell with irradiation light having at least two different frequency components
Implementation Method 2
a light detector that detects transmission light transmitted by the gas cell; determining a resonance frequency based on a light amount of the detected transmission light
Data Source
AI summary
An atomic oscillator of the present disclosure includes: a gas cell; a light generator irradiating the gas cell with irradiation light; a light detector detecting transmission light transmitted by the gas cell; a controller controlling an oscillation frequency based on a resonance frequency determined based on a light amount of the detected transmission light; and a temperature adjusting unit adjusting temperatures of the gas cell and the light generator. The temperature adjusting unit adjusts the temperatures of the gas cell and the light generator to set temperatures of the gas cell and the light generator, respectively, which are set so that an amount of change in resonance frequency when both the temperatures of the gas cell and the light generator change is smaller than an amount of change in resonance frequency when one of the temperatures of the gas cell and the light generator changes.