摘要
本文对原子时守时中发现的个别工业铯钟速率随离子泵参数变化的相关特性进行了分析。结果表明:从束管寿命后期开始,这种相关特性是很明显的,线性相关分析误差(rms)为4-7ns/d(5-8×10^(-14)),相关系数的最大值达0.96。利用这种特性,可以进行速率预报,预报误差的均方根值约为5ns/d(6×10^(-14))。
This paper analysed the correlate performance of the industry Cesium clock rate change with the ion pump parameter in the atomic timekeepine. The results show, during the later stase of the Cesium beam tube Life, this correlate performance is very ob -vious for some industry Cesium clocks. The error of the liner correlate analysis (rms) is 4-7 ns/d (5-8×101^(-14)), the maximum value of the correlate coefficient reachs0.96 According to this performance, we can carry out the rate forecast, the rms value of the forecast error is about 5ns/d (6×10^(-14)).
出处
《中国科学院上海天文台年刊》
1991年第12期165-169,共5页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
