氢原子钟

基于虚拟仪器的网络通信在氢原子钟数据自动采集系统中的设计

Design of Network Communication in Atomic Hydrogen Maser Status Automatic Acquisition System Based on Virtual Instrument

上海天文台对航天部二院203研究所氢原子钟的改进

The Improvement of Hydrogen Maser at National Space Bureau No.203 Institute

南山VLBI站氢原子钟的研制与性能测试

The Study and Performance Evaluation of Hydrogen Masers Used in Nanshan VLBI Station

上海天文台氢原子钟热敏电阻控温系统

Thermistor thermal control system on the hydrogen clock at Shanghai Observatory

上海天文台氢原子钟的研制进展

Progress in the Development of Hydrogen Maser at Shanghai Astronomical Observatory

氢原子钟原子束光学系统设计及其最佳化

The Design and Optimization of Atomic Beam Optics in a Hydrogen Maser

用于被动型氢原子钟的矩形磁控管微波腔的设计

Numerical analysis and design of novel microwave cavity for passive hydrogen maser

上海天文台氢原子钟的使用、研究和改进

The Uses Development and Improvement of the Hydrogen Maser in Shanghai Observatory

基于国产氢原子钟的钟差预报方法研究

Research on methods for predicting clock error based on Domectic hydrogen atomic clock

氢原子钟的设计改进与性能

Design Improvement and Performance of the Atomic Hydrogen Clock

氢原子钟性能测试结果

The Test Results of the Performance of Hydrogen Maser

国产氢原子钟是我国高精度时、频用户的最佳选择

Hydrogen clocks are optimum selection for high precision time and frequency applications in China

为国家授时中心研制的氢原子钟的设计改进与性能

Design improvement and the performance of the atomic hydrogen clocks for national time service center

守时用小型氢原子钟

Portable Atomic Hydrogen Maser for Timekeeping

这篇文章描述了上海天文台研制的氢原子钟的技术改造与性能。

This paper will describe the design improvement and performance of Shanghai Observatory 's atomic hydrogen clock .

受有关方面委托，上海天文台于1991年研制成功一种车载式工程型氢原子钟。

Shanghai Observatory developed successfully a kind of engineering model of hydrogen maser to be used on an engineering vehicle .

最近研制的氢原子钟，对于超过1000秒的平均时间间隔，其稳定度好到10~（-16）。

Recently developed atomic hydrogen masers have achieved stability well into the 10-16 domain for averaging time intervals beyond 1,000 sec .

在此基础上，介绍了我们建立的一套地面激光时间传递系统，以及对两台氢原子钟进行钟差比对和相对频率差的测定。

An experimental system for determining local time differences and relative frequency difference for two separate hydrogen masers has been carried out .

氢原子钟由于其优良的短期稳定性能和较长的工作寿命因而在时间社会得到了越来越多的重视。

Due to its very good short-term frequency stability , hydrogen maser has been given more and more attention in time service .

小型金属氢化物储存净化器适于野外分析、标准频标氢原子钟和气相色谱仪等测试仪器及燃料电池的氢气源。

The small-scale devices are suitable for the hydrogen source of open-air analysis , hydrogen atom clocks , fuel cells and testing instruments such as gaseous phase chromatographs .

实验室铯束标准提供了时间单位的校正，即秒长，氢原子钟和守时铷标准则保证了时间尺度的连续性。

The laboratory cesium clock is used to provide the basic reference of the second , while hydrogen clocks and rubidium clocks are used to ensure the continuity of the time scale .

利用我们现有的标准，一台试验型实验室铯束标准，三台氢原子钟以及若干台（2-6）铷气泡标准来建立原子时尺度。

Based on available frequency standards : one prototype laboratory model of cesium clock , three hydrogen clocks and several ( 2-6 ) rubidium clocks , the SO atomic time scale has been established .

为了减小这些影响，可借助一种自动调谐器来确保谐振腔的频率始终工作在所需的频率上，并采用新的温度控制系统来改善氢原子钟的长期性能。

In order to reduce these influences , an auto-tuning system has been developed to ensure working on the desired frequency for the resonant cavity and a new temperature control system has been designed to improve long-term performance .

合金储氢方式现在已被广泛采用，这种储氢方式也可应用于氢原子钟。

Hydrogen absorbing alloys have been widely used today to store the hydrogen , they also can be applied to the Hydrogen Maser .

针对这些年来许多氢钟出现的有关问题，上海天文台在借鉴国外氢钟实验室经验的基础之上，对原有氢钟进行了技术改造，并为国家授时中心研制了SOHM-4型氢原子钟。

In view of all the relevant problems in hydrogen masers , the existing hydrogen masers have been improved technically and the hydrogen maser SOHM-4 has been developed based on the experiences of foreign atomic standard laboratories .