CAJ | 학술논문

碱金属混合物原子配比是超高灵敏惯性测量装置表头的重要参数，需精确测量。针对碱金属配比与碱金属蒸汽密度相关的特点，提出运用光深理论检测碱金属配比。结果表明：受多种因素影响，光深理论得到的碱金属蒸汽密度与饱和蒸汽压经验公式计算的结果相差3个数量级，无法保证碱金属配比的测量精度；改变数据处理方法，建立光谱吸收率与气室内部温度的映射模型，运用光谱吸收率标定碱金属气室内部温度，通过碱金属饱和蒸汽压经验公式计算气室内部碱金属原子的配比，多组数据分析表明：检测误差在10％以内。
감금속혼합물원자배비시초고령민관성측량장치표두적중요삼수，수정학측량。침대감금속배비여감금속증기밀도상관적특점，제출운용광심이론검측감금속배비。결과표명：수다충인소영향，광심이론득도적감금속증기밀도여포화증기압경험공식계산적결과상차3개수량급，무법보증감금속배비적측량정도；개변수거처리방법，건립광보흡수솔여기실내부온도적영사모형，운용광보흡수솔표정감금속기실내부온도，통과감금속포화증기압경험공식계산기실내부감금속원자적배비，다조수거분석표명：검측오차재10％이내。
The ratio of alkali metal mixture is one of the most important parameters in gauge head belonging to the ultra‐sensitiv‐ity inertial measurement equipment ,which is required to detect precisely .According to the feature that ratio of alkali metal is re‐lated to alkali metal vapor density ,the theory of optical depth is used to detect the ratio of alkali metal in the present article .The result shows that the data got by the theory of optical depth compared with empirical formula differs at three orders of magni‐tude ,which can’t ensure the accuracy .By changing the data processing method ,model between spectral absorption rate and temperature in cell is established .The temperature in alkali metal cell is calibrated by spectral absorption rate .The ratio of alkali metal atoms in the cell is analyzed by calculating the alkali density with empirical formula .The computational error is less than 10% .