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자료유형
학술저널
저자정보
저널정보
한국광학회 Current Optics and Photonics Journal of the Optical Society of Korea Vol.19 No.4
발행연도
2015.8
수록면
415 - 420 (6page)

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A novel method to measure the scale factor for the all-optical atomic spin inertial measurement device(ASIMD) is demonstrated in this paper. The method can realize the calibration of the scale factor by aself-consistent method with small errors in the quiescent state. At first, the matured IMU (inertialmeasurement unit) device was fixed on an optical platform together with the ASIMD, and it has beenused to calibrate the scale factor for the ASIMD. The results show that there were some errors causingthe inaccuracy of the experiment. By the comparative analysis of theory and experiment, the ASIMD wasunable to keep pace with the IMU. Considering the characteristics of the ASIMD, the mismatch betweenthe driven frequency of the optical platform and the bandwidth of the ASIMD was the major reason. Anall-optical atomic spin magnetometer was set up at first. The sensitivity of the magnetometer is ultra-high,and it can be used to detect the magnetization of spin-polarized noble gas. The gyromagnetic ratio ofthe noble gas is a physical constant, and it has already been measured accurately. So a novel calibrationmethod for scale factor based on the gyromagnetic ratio has been presented. The relevant theoreticalanalysis and experiments have been implemented. The results showed that the scale factor of the devicewas 7.272 V/°/s by multi-group experiments with the maximum error value 0.49%

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