Intelligent compensation device and method for temperature coefficient of rubidium atomic frequency standard

Abstract

The invention relates to an intelligent compensation device and method for the temperature coefficient of a rubidium atomic frequency standard. The rubidium atomic frequency standard comprises a crystal oscillator, a physical system and a circuit controls system. The intelligent compensation device is connected between the physical system and the circuit control system and comprises a digital temperature detector, a microprocessor and a D / A (Digital-to-Analog) conversion module which are connected with each other, wherein the digital temperature detector is used for detecting the temperature change of the physical system, the microprocessor is used for processing detected temperature data according to the temperature relationship between the frequency and the physical system of the rubidium atomic frequency standard so as to set the voltage value of C filed coil of the physical system, and the D / A conversion module is used for carrying out D / A conversion on the set voltage value and outputting the converted set voltage value to the physical system. The application of the device can efficiently improve the weak points of rubidium atomic frequency standard, such as large temperature coefficient and high requirement on the temperature stability of a use environment, thereby satisfying the use requirement of the rubidium atomic frequency standard in various environments.

Description

technical field [0001] The invention relates to rubidium atomic frequency standard technology, in particular to an intelligent compensation device and method for the temperature coefficient of rubidium atomic frequency standard. Background technique [0002] Rubidium atomic frequency standards have been widely used in airborne, missile-borne, communication network node synchronization and other fields due to their small size, light weight, and low power consumption. Due to the improvement of production technology and the development of electronic technology, the frequency accuracy and stability of the rubidium atomic frequency standard have been further improved, making its application field continue to expand. [0003] Rubidium atomic frequency standard is a passive atomic frequency standard, mainly composed of crystal oscillator, physical system and circuit control system. After the output signal of the crystal oscillator is frequency-converted, the physical system is use...

AI Technical Summary

Problems solved by technology

Due to the difference in physical system and electronic circuit structure, the method of compensating DDS to improve the temperature coefficient cannot be used to correct the rubidium atomic frequency standard with different structures, which makes the existing method of correcting the temperature coefficient have great limitations

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