Voltage controlled crystal oscillating device used in atomic frequency standard

A technology of voltage-controlled crystal oscillator and atomic frequency standard, which is applied in the direction of automatic power control and electrical components, can solve the problems of influence, VCXO output signal frequency affected by temperature changes, etc., and achieve the effect of improving stability

Inactive Publication Date: 2013-09-25
JIANGHAN UNIVERSITY
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the frequency of the VCXO output signal is affected by temperature changes, the embodiment of the present invention provides a voltage-controlled crystal oscillator device for atomic frequency standards

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
  • Voltage controlled crystal oscillating device used in atomic frequency standard
  • Voltage controlled crystal oscillating device used in atomic frequency standard
  • Voltage controlled crystal oscillating device used in atomic frequency standard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] An embodiment of the present invention provides a voltage-controlled crystal oscillator device for an atomic frequency standard. The voltage-controlled crystal oscillator device is suitable for any atomic frequency standard (such as figure 1 atomic frequency scale shown). The atomic frequency standard includes a quantum system for providing quantum frequency identification signals, and a synchronization phase identification module for synchronous phase identification of the quantum frequency identification signals provided by the quantum system and reference signals to obtain phase identification results. Based on this, see figure 2 , the voltage-controlled crystal oscillator device provided by the embodiment of the present invention includes a VCXO100. The voltage-controlled crystal oscillator device also includes:

[0038] The first voltage reference 101 is in the same working environment as the VCXO 100 and is used to provide the VCXO 100 with a preset first offse...

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 voltage controlled crystal oscillating device used in an atomic frequency standard, and belongs to the field of atomic frequency standards. The crystal oscillating device comprises a voltage controlled crystal oscillator and further comprises a first voltage reference, and a processing module. The first voltage reference is located in the same working environment with the voltage controlled crystal oscillator and is used for providing preset first rectifying voltage for the voltage controlled crystal oscillator. The temperature coefficient of the first voltage reference is multiplied by the voltage controlled slope factor of the controlled crystal oscillator to be added with the temperature coefficient of the voltage controlled oscillator to be equal to zero. The processing module is used for obtaining second rectifying voltage according to a phase demodulation result of a synchronous phase demodulation module and providing the second rectifying voltage for the voltage controlled crystal oscillator. The voltage controlled crystal oscillating device enables output of the VCXO not to be influenced by temperature changes.

Description

technical field [0001] The invention relates to the field of atomic frequency standards, in particular to a voltage-controlled crystal oscillator device for atomic frequency standards. Background technique [0002] As a highly stable and high-precision clock source, atomic frequency standards are being widely used in many fields such as aerospace, navigation and communication. [0003] The existing atomic frequency standard mainly includes VCXO (Voltage Controlled X'tal Oscillator, Voltage Controlled Crystal Oscillator), microwave interrogation signal generation module, quantum system and synchronous phase detection module. Among them, the signal output by the VCXO is synthesized, multiplied and mixed by the microwave inquiry signal generation module to generate a microwave inquiry signal. After the microwave inquiry signal acts on the quantum system, a quantum frequency discrimination signal is generated; The frequency signal and the reference signal provided by the microw...

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 Applications(China)
IPC IPC(8): H03L7/26
Inventor 雷海东
Owner JIANGHAN UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap