Miniaturized rubidium frequency scale physical system

Abstract

The invention discloses a miniaturized rubidium frequency scale physical system. The system comprises a rubidium spectrum lamp and a cavity bubble system. The rubidium spectrum lamp and the cavity bubble system are respectively fixed on the heat insulation bottom plate. The optical heat insulation support is connected with the kidney-shaped groove holes in the heat insulation bottom plate throughsupport fixing screws. The optical heat insulation bracket is positioned between the rubidium spectrum lamp and the cavity bubble system. A plano-convex lens mounting hole and an optical filter mounting hole which are communicated with each other are respectively formed in two side surfaces of the optical heat insulation bracket. A plano-convex lens is installed in the plano-convex lens installation hole, an interference optical filter is installed in the optical filter installation hole. The magnetic screen bottom plate is arranged on the bottom face of the heat insulation bottom plate, the rubidium spectrum lamp, the cavity bubble system and the optical heat insulation support are arranged in the magnetic screen shell, and the magnetic screen shell is arranged on the heat insulation bottom plate in an inverted mode. The rubidium frequency scale physical system has the advantages of being easy to assemble, adjustable in parameter and convenient to produce in batches, and can be used for modular production of a miniaturized rubidium frequency scale physical system.

Description

technical field [0001] The invention relates to a physical system structure, in particular to a miniaturized rubidium frequency standard physical system, which is suitable for use in miniaturized rubidium frequency standards with strict volume requirements. Background technique [0002] Due to its small size, low power consumption, light weight and other characteristics, its practicability far exceeds other types of atomic frequency standards, and it has become the most widely used atomic frequency standard. It mainly has two development directions: high performance and miniaturization . High-performance rubidium frequency standards are mainly mounted on navigation satellites, synthetic aperture radar satellites, electronic reconnaissance satellites, military communication satellites, etc. Miniaturized rubidium frequency standards are widely used in communication base stations, airborne and missile-borne equipment, and field operations And low-orbit small satellites and oth...

AI Technical Summary

Problems solved by technology

On the other hand, since the spectral light emission includes 87 The Rb atom emits light and the buffer gas atom emits light, which contributes to the transition signal is 87 The effective light emitted by Rb atoms, the spectrum emitted by Xe atoms has no pumping effect, does not contribute to the atomic signal, and only increases the shot noise after being detected by the photocell, which limits the performance of the physical system.

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