Atomic spin gyroscope based on (129)~Xe-Cs comagnetometer

• 作 者: FANG JianCheng QIN Jie WAN ShuangAi CHEN Yao LI RuJie
• 机 构: Science and Technology on Inertial Laboratory,Beihang University,
• 出 处: Chinese Science Bulletin
• 发表日期: 2013年13期
• 关键词: Atomic navigation inertial relaxation minutes rotation demonstration eliminate c

Atomic spin gyroscope (ASG) based on comagnetometer is a high sensitive and compact gyroscope for future inertial navigation applications. The start-up time was several hours of the demonstrated ASGs based on 3He-K or21 Ne-Rb-K comagnetometer, and only a few inertial navigation applications allow such a long time for preparation. We report the demonstration of an ASG based on 129Xe-Cs comagnetometer, which decreases the start-up time to 10 minutes and decreases the operation temperature by 40% as well. By operating this ASG in spin exchange relaxation free regime, a sensitivity of 7×10 -5 °/(s Hz1/2) was achieved.

Atomic spin gyroscope (ASG) based on comagnetometer is a high sensitive and compact gyroscope for future inertial navigation applications. The start-up time was several hours of the represented ASGs based on 3He-K or21 Ne-Rb-K comagnetometer, and only a few inertial navigation applications allow such a long time for preparation. We report the demonstration of an ASG based on 129Xe-Cs comagnetometer, which reduce the start-up time to 10 minutes and reduce the operation temperature by 40% as well. ASG in spin exchange relaxation free regime, a sensitivity of 7 × 10 -5 ° / (s Hz 1/2) was achieved.