Thermal radiation measurement using a steam cell sensor
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- QUANTUM VALLEY IDEAS LAB
- Filing Date
- 2024-06-27
- Publication Date
- 2026-06-16
Smart Images
Figure 2026519334000001_ABST
Abstract
Claims
1. A steam cell sensor comprising a steam cell containing steam and configured to generate an optical signal in response to a laser signal and thermal radiation interacting with the steam, wherein the steam includes a Rydberg electronic transition configured to interact with the thermal radiation, and the optical signal is based on the transmission of one of the laser signals through the steam. A computing system comprising one or more processors and memory, wherein the memory stores instructions configured to perform an operation when executed by the one or more processors, and a radiometer comprising a computing system, The aforementioned operation, Based on the aforementioned optical signal, transmission data representing the transmission of the one laser signal through the vapor is generated. A radiometer comprising determining the temperature of a target object that generates thermal radiation based on the transmission data.
2. The radiometer according to claim 1, comprising an RF source configured to generate a reference RF electromagnetic field configured to interact with the Rydberg electron transition.
3. The radiometer according to claim 2, wherein the RF source includes an RF attenuator configured to change the amplitude of the reference RF electromagnetic field to a target amplitude, the target amplitude having a magnitude such that the reference RF electromagnetic field interacts with the Rydberg electron transition to place the vapor cell sensor in the amplitude region.
4. The transmission data includes first and second intensity values based on the one laser signal after passing through the vapor. To generate the aforementioned transparent data, To generate the first intensity value when the laser signal and the thermal radiation interact with the vapor, The radiometer according to claim 2 or 3, comprising generating the second intensity value when the laser signal, the reference RF electromagnetic field, and the thermal radiation interact with the vapor.
5. Determining the temperature of the target object Based on the first and second intensity values, the magnitude of the parameter that is linearly dependent on the temperature of the target body is calculated, The radiometer according to claim 4, further comprising determining the temperature of the target object based on the magnitude of the parameter.
6. The first and second intensity values are generated at different signal intensities of the one laser signal. Determining the temperature of the target object Based on the first and second intensity values at each signal intensity, the magnitude of each parameter representing the relationship between the first absorption term and the second absorption term is calculated, The first absorption term represents the absorption of the one laser signal passing through the vapor when the laser signal and the thermal radiation interact with the vapor, The second absorption term is calculated by determining the magnitude of each of the parameters that represent the absorption of the one laser signal through the vapor when the laser signal, the reference RF electromagnetic field, and the thermal radiation interact with the vapor, The values of the first and second absorption terms are generated based on the respective magnitudes of the aforementioned parameters, The radiometer according to claim 4, further comprising determining the temperature of the target body based on the generated values of the first and second absorption terms.
7. The system includes a laser system configured to generate the aforementioned laser signal, wherein the laser signal includes a probe laser signal and a coupled laser signal. The optical signal is transmitted through the vapor based on the transmission of the probe laser signal, The probe laser signal is configured to interact with the probe optical transition of the vapor, The radiometer according to any one of claims 1 to 3, wherein the coupled laser signal is configured to interact with the coupled optical transition of the vapor.
8. The aforementioned steam, The first and second electronic states, Including the first and second Rydberg electronic states, Including electronic states, The first electronic state, the second electronic state, and the first Rydberg electronic state have progressively higher energies, The probe optical transition is defined by the first electronic state and the second electronic state, The coupled optical transition is defined by the second electronic state and the first Rydberg electronic state, The radiometer according to claim 7, wherein the Rydberg electronic transition is defined by the first Rydberg electronic state and the second Rydberg electronic state.
9. The coupled laser signal is a first coupled laser signal, and the laser signal includes a second coupled laser signal. Based on the transmission of the probe laser signal through the vapor, The probe laser signal is configured to interact with the probe optical transition of the vapor, The first coupled laser signal is configured to interact with the first coupled optical transition of the vapor, The radiometer according to claim 7, wherein the second coupled laser signal is configured to interact with the second coupled optical transition of the vapor.
10. The aforementioned steam, The first, second, and third electronic states, Including the first and second Rydberg electronic states, Having an electronic state, The energies of the first electronic state, the second electronic state, the third electronic state, and the first Rydeberg electronic state are, in order, increasing in energy. The probe optical transition is defined by the first electronic state and the second electronic state, The first coupled optical transition is defined by the second electronic state and the third electronic state, The second coupled optical transition is defined by the third electronic state and the first Rydberg electronic state, The radiometer according to claim 9, wherein the Rydberg electronic transition is defined by the first Rydberg electronic state and the second Rydberg electronic state.
11. A radiometer according to any one of claims 1 to 3, comprising an optical detector configured to generate a detector signal in response to the reception of the aforementioned optical signal, wherein the detector signal represents the transmission of the one laser signal through the vapor.
12. The radiometer according to any one of claims 1 to 3, wherein the Rydberg electron transition is configured to interact with thermal radiation corresponding to blackbody temperatures higher than 300°C.
13. A radiometer according to any one of claims 1 to 3, comprising the target body located outside the steam cell sensor and in thermal communication with the steam cell sensor.
14. A method for measuring thermal radiation, The operation of a steam cell sensor generates an optical signal in response to a laser signal and thermal radiation interacting with the steam of the steam cell sensor, wherein the optical signal is generated based on the transmission of one of the laser signals through the steam, and the steam generates an optical signal including a Rydberg electron transition configured to interact with the thermal radiation. Based on the aforementioned optical signal, transmission data representing the transmission of the one laser signal through the vapor is generated. A method comprising determining the temperature of a target object that generates thermal radiation based on the transmission data.
15. The operation of the RF source generates a reference RF electromagnetic field configured to interact with the Rydberg electron transition, The method according to claim 14, further comprising receiving the reference RF electromagnetic field in the steam of the steam cell sensor.
16. The RF source includes an RF attenuator, The method according to claim 15, wherein generating the reference RF electromagnetic field includes changing the amplitude of the reference RF electromagnetic field to a target amplitude by the operation of the RF attenuator, the target amplitude having a magnitude such that the reference RF electromagnetic field interacts with the Rydberg electron transition to place the vapor cell sensor in the amplitude region.
17. The transmission data includes first and second intensity values based on the one laser signal after passing through the vapor. To generate the aforementioned transparent data, To generate the first intensity value when the laser signal and the thermal radiation interact with the vapor, The method according to claim 15 or 16, comprising generating the second intensity value when the laser signal, the reference RF electromagnetic field, and the thermal radiation interact with the vapor.
18. Determining the temperature of the target object Based on the first and second intensity values, the magnitude of the parameter that is linearly dependent on the temperature of the target body is calculated, The method according to claim 17, further comprising determining the temperature of the target body based on the magnitude of the parameter.
19. The first and second intensity values are generated at different signal intensities of the one laser signal. Determining the temperature of the target object Based on the first and second intensity values at each signal intensity, the magnitude of each parameter representing the relationship between the first absorption term and the second absorption term is calculated, The first absorption term represents the absorption of the one laser signal passing through the vapor when the laser signal and the thermal radiation interact with the vapor, The second absorption term is calculated by determining the magnitude of each of the parameters that represent the absorption of the one laser signal through the vapor when the laser signal, the reference RF electromagnetic field, and the thermal radiation interact with the vapor, The values of the first and second absorption terms are generated based on the respective magnitudes of the aforementioned parameters, The method according to claim 17, further comprising determining the temperature of the target body based on the generated values of the first and second absorption terms.
20. Generating transparency data involves generating sets of transparency data at different points in time over time. Determining the temperature of the target object Determining the corresponding temperature of the target object at each of the different time points based on the set of transmission data, wherein the corresponding temperature defines the temperature in a time series, The method according to any one of claims 14 to 16, comprising calculating a final temperature based on the temperature in the time series, wherein the final temperature defines the temperature to be determined for the target object.
21. The operation of the laser system generates the laser signal, and the laser signal includes a probe laser signal and a coupled laser signal. Based on the transmission of the probe laser signal through the vapor, The probe laser signal is configured to interact with the probe optical transition of the vapor, The method according to any one of claims 14 to 16, wherein the coupled laser signal is configured to interact with the coupled optical transition of the vapor.
22. The aforementioned steam, The first and second electronic states, Including the first and second Rydberg electronic states, Including electronic states, The first electronic state, the second electronic state, and the first Rydberg electronic state have progressively higher energies, The probe optical transition is defined by the first electronic state and the second electronic state, The coupled optical transition is defined by the second electronic state and the first Rydberg electronic state, The method according to claim 21, wherein the Rydberg electronic transition is defined by the first Rydberg electronic state and the second Rydberg electronic state.
23. The coupled laser signal is a first coupled laser signal, and the laser signal includes a second coupled laser signal. Based on the transmission of the probe laser signal through the vapor, The probe laser signal is configured to interact with the probe optical transition of the vapor, The first coupled laser signal is configured to interact with the first coupled optical transition of the vapor, The method according to claim 21, wherein the second coupled laser signal is configured to interact with the second coupled optical transition of the vapor.
24. The aforementioned steam, The first, second, and third electronic states, Having an electronic state including a first and a second Rydberg electronic state, The energies of the first electronic state, the second electronic state, the third electronic state, and the first Rydeberg electronic state are, in order, increasing in energy. The probe optical transition is defined by the first electronic state and the second electronic state, The first coupled optical transition is defined by the second electronic state and the third electronic state, The second coupled optical transition is defined by the third electronic state and the first Rydberg electronic state, The method according to claim 23, wherein the Rydberg electronic transition is defined by the first Rydberg electronic state and the second Rydberg electronic state.
25. The method according to any one of claims 14 to 16, comprising generating a detector signal in response to the reception of the optical signal in the optical detector by the operation of the optical detector, wherein the detector signal represents the transmission of the one laser signal through the vapor.
26. The method according to any one of claims 14 to 16, wherein the Rydberg electron transition is configured to interact with thermal radiation corresponding to blackbody temperatures higher than 300°C.