氢钟

DSP并行引导方法在氢钟自动调谐系统中的应用

Parallel bootload method of hydrogen atomic clock CAT system based on DSP

H7氢钟腔-泡结构特征和储存泡涂敷技术

Characteristics of the cavity-bulb construction of the hydrogen maser h_7 and coating technology of the storage-bulb

氢钟智能温度控制及CAT控制电压自动补偿系统设计与分析

Design and Analysis of Intelligent Temperature Control and Temperature Compensating System of CAT for Hydrogen Clock

佘山VLBI台站氢钟的辅助电子学系统改进

Improvement of Supporting Electronics System of H-clock at Sher Shan VLBI Station

氢钟是甚长基线干涉仪（VLBI）中的一个关键系统。讨论了一种适合于VLSI的精密定时子系统的新结构。

Hydrogen clock is an important subsystem of VLBI . It gives time service to VLBI . A new structure of accurate clock generate subsystem is presented which is fit for VLSI design .

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 .

利用单频调制技术实现被动型氢钟的锁定

A single modulation frequency method used in the passive h maser

高性能氢钟频率信号分配放大器的研制彩色信号比校正放大器

The development of high-performance frequency signal distribution amplifier for hydrogen maser

介绍了上海天文台被动型小氢钟的研制进展，给出了当前的测试结果。

Miniature passive hydrogen maser is developed at Shanghai observatory .

被动型小氢钟的研究进展

Development of miniature passive hydrogen maser at Shanghai Observatory

上海天文台氢钟的研制现状及其应用前景

The status of shao 's hydrogen masers research and their potential application prospects

辅助电子学系统是氢钟的一个非常重要的部分。

The Supporting Electronics System is a very important Part of the H-clock .

被动型氢钟波谱信号观测装置的设计

A Design of Observing Device for Hyperfine Transition Spectrum of Passive Hydrogen Maser

氢钟守时应用

Applications of hydrogen clock in the time keeping

氢钟和铯钟联合守时初探

An Initial Test on Time Keeping Through Combination of Hydrogen Maser and Cesium Clock

国产氢钟研制的新进展

Recent progress in domestic hydrogen maser clocks

我国氢钟研制现状与用于卫星导航的可行性

The Research Status of Domestic Hydrogen Masers and Their Application Prospects for Satellite Positioning System

这种小氢钟应用了电极负载腔。

Electrode loaded resonant cavity is used in passive hydrogen maser to reduce the size .

近年来上海天文台氢钟性能的改进和提高

The improvement of the performance of the hydrogen maser clock at Shanghai Observatory in recent years

氢钟钟罩及前级真空机组的改进设计

Grade . the improvement of the bell jar and the fore pump system for Shanghai observatory 's hydrogen maser

简单介绍了被动型氢钟的量子系统，阐述了波谱信号观测装置的设计。

The quantum system of the passive hydrogen maser is introduced briefly and a design of the spectrum observing device is expounded .

氢钟的小型化主要是谐振腔的改进，它的结构尺寸决定了氢钟的最小尺寸和重量。

Different compact microwave cavities are used in order to reduce the size and weight , comparing to which of conventional hydrogen clocks .

介绍了我国氢钟的研制现状以及国产氢钟的应用情况，指出它们在我国卫星导航系统的潜在应用前景。

This peper describes the research status of domestic H-masers and their applications as well as their application prospects for Chinese satellite positioning system .

本文将描述它的机械和电子学设计特点，并与上海天文台早期制造的氢钟进行了详细的比较。

This paper describes the mechanical and electronics design philosophy of the new maser , and comparisons with previous masers made at Shanghai Observatory are detailed .

而前级真空机组由于采用了不锈钢波纹管及卡箍结构，无粗大的真空橡皮管，也改善了氢钟的真空条件。

The fore pump system improves the vacuum condition of the hydrogen maser system because applying stainless steel bellows and hoop const-ruction without large rubber tubes .

该装置已用于对两台被动型氢钟的测试，并根据测试结果对量子系统进行了改进。

The spectrum observing device has been applied to the tests of two passive hydrogen masers and the quantum systems have been improved based on the tests .

本文介绍了氢钟钛合金钟罩的设计制作以及机械泵&分子泵前级真空机组的改进设计。

This paper describes the design and manufacture of the titanium vacuum bell jar and the improvement of the fore pump system for Shanghai Observatory 's hydrogen maser .

钦合金钟罩及改进型前级真空机组的应用对氢钟铁离子泵的启动及系统真空度的提高起了一定的作用。

In short , their use plays a very good role in start of the ion pump and in increase of the vacuum degree of the maser system .

本文主要介绍了氢钟、铷钟、铯钟等几种主要原子频标的物理工作原理、性能、工作与应用领域与研究进展；

The article mainly discusses the physical principle , performance , working and application fields and recent research devel - opment of several main atom frequency standards such as Hydrogen , Rubidium , Cesium atom clock , etc.

从1985年起，上海天文台对自己研制的3台老型氢钟进行了彻底的改造。

Three old models of hydrogen masers which were developed at shanghai observatory have been reformed since 1985.Two Years , operations indicate that the stabilities reach E-15 for periods of time beyond 100 seconds , and the Masers are reliable .