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Journal of Astronautics

Applications of Atom Inertial Technology in Aerospace Engineering

YE Xiong-ying

Published Jan 1, 2009• 0 citations
OpenAlex

Abstract

With the development of atom optics,the potential high precision and super-high sensitivity of atom inertial technology have attracted world-wide attention and research.Recent great technology progress in atom inertial technology was achieved,and the application in engineering is developing.The recent development of atom inertial technology was introduced in the paper,and its applications,especially on high precision inertial navigation,fundamental physics and verification of General Relativity,measurement of the Earth,the Moon,and so on.At last,domestic research situation and development in the future were demonstrated.

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With the development of atom optics,the potential high precision and super-high sensitivity of atom inertial technology have attracted world-wide attention and research.Recent great technology progress in atom inertial technology was achieved,and the application in engineering is developing.The recent development of atom inertial technology was introduced in the paper,and its applications,especially on high precision inertial navigation,fundamental physics and verification of General Relativity,measurement of the Earth,the Moon,and so on.At last,domestic research situation and development in the future were demonstrated.
In recent years, quantum technology has attracted attention in inertial navigation, especially due to its extreme sensitivity to inertial forces and strong immunity to drifts, which plague conventional sensors. There are multiple groups around the world working on cold atom interferometry aiming to develop high sensitive inertial sensors for very high accuracy autonomous navigation. Recent advancements in micro-fabrication technologies have helped in development of robust and miniaturized atom interferometry based high performance inertial systems. These, in future, will pave way for autonomous satellite inertial navigation sensors based on cold atoms. Here we discuss the achievements towards realizing cold atom inertial sensors and their indomitable role as inertial sensors for future satellites. A detailed survey on the initiatives taken by different space agencies, their achievements and their plans to explore its potential in space are also discussed.
With the rapid development of modern physics, atomic gyroscopes have been demonstrated in recent years. There are two types of atomic gyroscope. The Atomic Interferometer Gyroscope (AIG), which utilizes the atomic interferometer to sense rotation, is an ultra-high precision gyroscope; and the Atomic Spin Gyroscope (ASG), which utilizes atomic spin to sense rotation, features high precision, compact size and the possibility to make a chip-scale one. Recent developments in the atomic gyroscope field have created new ways to obtain high precision gyroscopes which were previously unavailable with mechanical or optical gyroscopes, but there are still lots of problems that need to be overcome to meet the requirements of inertial navigation systems. This paper reviews the basic principles of AIG and ASG, introduces the recent progress in this area, focusing on discussing their technical difficulties for inertial navigation applications, and suggests methods for developing high performance atomic gyroscopes in the near future.
Abstract Atom interferometry is one of the most promising technologies for high precision measurements. It has the potential to revolutionise many different sectors, such as navigation and positioning, resource exploration, geophysical studies, and fundamental physics. After decades of research in the field of cold atoms, the technology has reached a stage where commercialisation of cold atom interferometers has become possible. This article describes recent developments, challenges, and prospects for quantum sensors for inertial sensing based on cold atom interferometry techniques.
As the core sensors of inertial navigation, the accuracy of gyroscope and accelerometer directly determines the performance of inertial navigation system. With the appearance of cold atom interference technology, it has a wide application prospect in the field of inertial measurement, and cold atom gravimeter and cold atom gyroscope have appeared in succession. This paper mainly introduces the basic principle of cold atom interference technology, and briefly describes the development status of cold atom gyroscope and accelerometer. The existing problems in the current research is summarized, and its future application in navigation are prospected.
High precision atom interferometers have shown attractive prospects in laboratory for testing fundamental physics and inertial sensing. Efforts on applying this innovative technology to field applications are also being made intensively. As the manipulation of cold atoms and related matching technologies mature, inertial sensors based on atom interferometry can be adapted to various indoor or mobile platforms. A series of experiments have been conducted and high performance has been achieved. In this paper, we will introduce the principles, the key technologies, and the applications of atom interferometers, and mainly review the recent progress of movable atom gravimeters.