Recent results of Physikalisch-Technische Bundesanstalt's primary clock CS1

被引：3

作者：

Bauch, A ^{[1
]}

Fischer, B ^{[1
]}

Heindorff, T ^{[1
]}

Schröder, R ^{[1
]}

机构：

[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2000年 / 47卷 / 02期

关键词：

Atomic beams - Cesium - Frequencies - Frequency standards;

D O I：

10.1109/58.827433

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper describes the current performance of the Physikalisch-Technische Bundesanstalt's (PTB) primary clock CS1. After major reconstruction during 1995 and 1996, routine clock operation was started in May 1997. An evaluation of the CS1 Type B uncertainty yielded 7 . 10(-15)(1 sigma). The performance of the CS1 is illustrated by results of a comparison lasting 2 yr with other clocks at PTB and with the International Atomic Time (TAI) and free atomic time scales. With reference to TAI, e.g., a frequency instability of 3.9 . 10(-15) at an averaging time of 30 d was observed.

引用

页码：443 / 448

页数：6