Development of the Controllable C-field Current Stabilizer for the Atomic Beam Tube of the Cesium Atom Clock

Abstract

The feasibility of using quantum frequency standards (QFS)—atomic clocks as reference measures in satellite navigation systems (SNS) compared to other reference generators models is justified. It is noted that among all atomic clocks, cesium QFS occupy a special place. These standards are the primary reference frequency on which the international time scale is based. Given the importance of atomic clocks in the operation of satellite systems, the development of new and modernized QFS models is an important and urgent task. The main goal of new developments or upgrades is to improve the metrological characteristics of QFS. In case of its application for mobile objects, its dimensions, weight and power consumption also become important characteristics. One of the factors causing instability in the operation of QFS is considered. The development of a device for stabilizing the magnetic field at a given level in the atomic-beam tube of the QFS and the results of its operation are presented. The short-term frequency stability of the output signal of the frequency standard is improved by 10% and its temperature sensitivity is reduced twice.KeywordsAutomatic Frequency AdjustmentFrequency StabiliserCesium Frequency StandardStable STI ProvisionOperational AmplifierDigital-to-Analog ConverterAtomic Beam Tube