TY - JOUR
T1 - Experimental study on electromagnetic noise suppression of atomic spin gyroscope heating chamber
AU - Zhou, Binquan
AU - Hao, Jiepeng
AU - Liang, Xiaoyang
AU - Quan, Wei
AU - Liu, Gang
N1 - Publisher Copyright:
© 2018, Editorial Board of JBUAA. All right reserved.
PY - 2018/1
Y1 - 2018/1
N2 - Atomic spin gyroscope is the latest type of gyroscope, which has ultra-high theoretical precision. Alkali vapor cell is the sensing element of atomic spin gyroscope, which carries the atomic spin effect. Electric heating makes alkali attain saturated vapor pressure, which will introduce electromagnetic interference and other noises, thereby affecting the accuracy and sensitivity of atomic spin gyroscope. To reduce the influence of heating chamber electromagnetic noise on the atomic spin gyroscope, the electromagnetic noise suppression experiment was studied from two aspects of heater structure and heating driving signal. A special shaped heating film with magnetic noise suppression was designed. A high frequency sine wave was designed as the heating driving signal. In addition, a non-magnetic heating system of alkali vapor cell was constructed. The test results show that the equivalent magnetic noise is within 17 fT/Hz1/2, and the temperature stability of the alkali vapor cells is within ±0.006℃, which provides a reliable guarantee for the performance improvement of atomic spin gyroscope.
AB - Atomic spin gyroscope is the latest type of gyroscope, which has ultra-high theoretical precision. Alkali vapor cell is the sensing element of atomic spin gyroscope, which carries the atomic spin effect. Electric heating makes alkali attain saturated vapor pressure, which will introduce electromagnetic interference and other noises, thereby affecting the accuracy and sensitivity of atomic spin gyroscope. To reduce the influence of heating chamber electromagnetic noise on the atomic spin gyroscope, the electromagnetic noise suppression experiment was studied from two aspects of heater structure and heating driving signal. A special shaped heating film with magnetic noise suppression was designed. A high frequency sine wave was designed as the heating driving signal. In addition, a non-magnetic heating system of alkali vapor cell was constructed. The test results show that the equivalent magnetic noise is within 17 fT/Hz1/2, and the temperature stability of the alkali vapor cells is within ±0.006℃, which provides a reliable guarantee for the performance improvement of atomic spin gyroscope.
KW - Atomic spin gyroscope
KW - Heating film
KW - High frequency sine wave
KW - Noise suppression
KW - Non-magnetic heating
UR - https://www.scopus.com/pages/publications/85044232317
U2 - 10.13700/j.bh.1001-5965.2016.0964
DO - 10.13700/j.bh.1001-5965.2016.0964
M3 - 文章
AN - SCOPUS:85044232317
SN - 1001-5965
VL - 44
SP - 36
EP - 42
JO - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
JF - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
IS - 1
ER -