Control Scheme for Chip-scale Atomic Magnetometer
Chip scale atomic magnetometer (CSAM).has been demonstrated recent years. The Mx based CSAM is suitable for future application duo to its simply structure and high sensitivity. To operate such a device out of the lab environment,the control electronics need to be integrated in the chip head and manufactured with IC process.However,the control schemes already used either are not compatible with IC process or have narrow dynamic range.In this paper we present a new control scheme to overcome these limits by designing a negative gain as frequency insensitive 180° phase shifter and an amplitude gain controller to drive CSAM on self-oscillating. The proposed control scheme has been tested and verified with simulations.
atomic magnetometer chip scale atomic devices Mz magnetometer self-oscillation amplitude gain controller.
Jie Qin Jiancheng Fang Haifeng Dong
Department of Instrument Science and Opto-electron Technology,Beihang University Xueyuan Road 37,Beijing 100191,China
国际会议
2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)
北京
英文
725-728
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）