Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Calibration method of radio frequency source directly traceable to transition frequency between atomic high excited states

A technology of transition frequency and calibration method, which is applied in the direction of frequency measurement devices, etc., can solve the problems of complex frequency multiplication or frequency division circuits, large measurement uncertainty, etc., and achieve large frequency measurement range, good measurement accuracy and self-calibration characteristics Effect

Active Publication Date: 2018-10-26
SHANXI UNIV
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used reference frequency that is usually used for comparison is usually several megahertz to tens of megahertz. When the frequency to be tested reaches above 100GHz, the required frequency multiplication or frequency division circuit will become very complicated, and will introduce a large measurement uncertainty
In the passive method, the measurement accuracy also depends on the resonant cavity and the reference frequency of the measuring instrument also needs to be calibrated, which will bring additional costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Calibration method of radio frequency source directly traceable to transition frequency between atomic high excited states
  • Calibration method of radio frequency source directly traceable to transition frequency between atomic high excited states
  • Calibration method of radio frequency source directly traceable to transition frequency between atomic high excited states

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A radio frequency source calibration method directly traceable to the transition frequency between high excited states of atoms, characterized in that it includes the following steps: (a), resonating a beam of frequency at the transition line from the ground state to the first excited state energy level of an alkali metal atom The laser is used as the probe light, and the probe light is divided into two beams of linearly polarized parallel light beams with the same intensity, and they are both incident from the same side into the atomic gas chamber filled with alkali metal atom vapor inside, and the two parallel beams of probe light interact with the alkali metal atoms Then it is transmitted from the other side of the atomic gas cell and detected by the differential detector at the same time; (b), a beam of coupled light is introduced to resonate from the first excited state of the alkali metal atom to a certain Rydberg state n l , the coupled light enters the atomic gas...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a radio-frequency source frequency calibration method for jump frequency from direct tracing to a high excited state. According to the method, energy level splitting is produced by using the quantum interference effect of high excited atoms under the action of a radio-frequency field and an electric field, and the frequency of the measured radio-frequency field can be effectively traced to the energy level interval of atoms by measuring the characteristic ratio of two split transmitted spectrum peaks. The frequency measuring basis can be directly compared with the jump frequency of atoms, so that the accuracy of frequency measurement is effectively improved. The method can directly trace the frequency of the radio-frequency field to the jump frequency of atoms, a new method is provided for the frequency measurement of the high radio-frequency field, and the method has good measurement accuracy and self-calibration property.

Description

technical field [0001] The invention relates to a space radio frequency field frequency measurement technology, in particular to a radio frequency source calibration method directly traced to the transition frequency between atomic high excited states. Background technique [0002] RF field frequency is an important content of RF field measurement. The current method of measuring radio frequency is to compare the standard frequency with the measured frequency. It mainly includes two kinds of active method and passive method: the active method refers to the oscillation source of a standard frequency included in the measuring instrument. The passive method refers to comparing the frequency of the signal under test with the natural frequency of a tunable passive loop, using the presence of resonance as an indication of frequency equality, such as using an RF field resonant cavity. The commonly used reference frequency that is usually used for comparison is usually several meg...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01R23/02
CPCG01R23/02
Inventor 张临杰王建明张文学肖连团贾锁堂
Owner SHANXI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com