Micro-physical system of chip-scale atomic clock

A chip atomic clock and physical system technology, which is applied in the micro physical system field of chip atomic clock, can solve the problems of short life and low air tightness, and achieve the effects of improved service life, high air tightness, and stable performance

Inactive Publication Date: 2017-09-22
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a micro-physical system of a chip atomic

Method used

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  • Micro-physical system of chip-scale atomic clock
  • Micro-physical system of chip-scale atomic clock

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Embodiment Construction

[0040] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0041] In the description and claims of the present invention and the above drawings, the terms "first", "second", etc. are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units,...

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Abstract

The invention discloses a micro-physical system of a chip-scale atomic clock. The system comprises a magnetic shield shell, a core component and a buffer gas cavity which is enclosed by the magnetic shield shell and the core component, wherein the magnetic shield shell comprises a magnetic shield cylinder and a magnetic shield base which is used for sealing the magnetic shield cylinder; the core component is arranged in the magnetic shield shell and comprises a light source unit, a light path unit and an atom cavity unit which are arranged in sequence, wherein the atom cavity unit comprises an MEMS atom cavity, and the MEMS atom cavity is filled with rubidium atoms and buffer gas; the buffer gas cavity is filled with the buffer gas of which the pressure intensity is equal to that in the MEMS atom cavity. The micro-physical system of the chip-scale atomic clock has the advantages that the system is convenient to install, stable in performance, compact in structure, small in size, low in power dissipation and long in service life.

Description

technical field [0001] The invention relates to the field of atomic clocks. More specifically, it relates to a miniature physical system of an atomic clock on a chip. Background technique [0002] An atomic clock is a precision time measurement instrument that uses electromagnetic waves emitted when atoms absorb or release energy to keep time. It is widely used in positioning, navigation, communication, military and other fields. Because this electromagnetic wave is very stable and controlled by a series of sophisticated instruments, atomic clocks can be very accurate. At present, the elements used in atomic clocks include hydrogen (Hydrogen), cesium (Cesium), rubidium (rubidium), etc. The accuracy of atomic clocks can reach an error of 1 second every 20 million years, which provides a powerful foundation for astronomy, navigation, and space navigation. Assure. [0003] Among them, the Chip Scale Atomic Clock (CSAC) has broad application prospects in the field of portable...

Claims

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Application Information

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IPC IPC(8): G04F5/14
CPCG04F5/14
Inventor 张振伟杨仁福张旭薛潇博陈星赵环王暖让
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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