atomic clock

noun

1. 原子钟（利用原子或分子运动计量时间，精确度十分高）
   an extremely accurate clock which uses the movement of atoms or molecules to measure time

1. The key to both experiments is the quantum logic atomic clock, which uses the oscillation of a single aluminium ion to maintain precise timing.
   两个实验的重点是量子铝原子钟，它利用单一铝离子的震荡来精准测量时间的流逝。
2. An atomic clock that operates with an ammonia molecule may be used to check the accuracy of predictions based on einstein's relativity theories, according to which a clock in motion and a clock at rest should keep time differently.
   靠氨分子运行的原子钟可用来检查基于爱因斯坦相对论的预算精确度。根据相对论理论，运动的钟和静止的钟应存在计时上的差别。
3. Measurement and research about the characteristic of Rubidium Atomic Clock's long-term aging
   铷原子钟长期老化特性的观测与研究
4. The generation of the power law noise is a sick field in atomic clock ′ s performance simulation.
   幂率谱噪声的生成一直是原子钟性能仿真领域研究的一个薄弱环节。
5. Technical Requirements for VCXO used in the Cesium Atomic Clock
   铯束频标中压控晶体振荡器的技术要求
6. Frequency Control Model of Atomic Clock Based on Coherent Population Trapping
   基于CPT原理原子钟的频率控制系统
7. One such atomic clock is so accurate that it will probably lose no more than a second in 3,000 years.
   一座这样的原子钟精确度很高，在3000年期间也不会慢掉一秒钟。
8. A design of high dielectric ceramic microwave cavity used in laser-pumped rubidium atomic clock
   一种用于激光抽运铷钟的高介电陶瓷微波腔设计
9. In the proposed schemes, the redundant configuration of grandmaster clock using Beidou navigation satellite system, GPS ( Global Positioning System) and atomic clock is discussed.
   在应用方案中，讨论了利用北斗卫星定位系统、全球卫星定位系统（GPS）和原子时钟构建最高级时钟的冗余配置方案。
10. Design and Realization for Circuit System of CPT Atomic Clock
    CPT原子钟电路系统的设计与实现
11. Optimization and experimental research of the frequency stabilizing system of satellite-borne MEMS atomic clock
    星载MEMS原子钟稳频系统的优化及实验研究
12. Design of VCSEL laser control system based on CPT atomic clock
    基于CPT原子钟的VCSEL激光器控制系统设计
13. A high-precision atomic clock with an accuracy of less than a second per twenty million years
    一种高精度的钟，每2000万年只差1秒
14. Research on methods for predicting clock error based on Domectic hydrogen atomic clock
    基于国产氢原子钟的钟差预报方法研究
15. Principle and circuit system design of CPT atomic clock
    CPT原子钟的原理及其电路系统框架设计
16. The heart of this atomic clock is a cesium atom that vibrates 9.2 billion times a second when heated to the temperature of boiling water.
    这一原子钟的心脏是一个铯原子，在被加热到水的沸腾温度时，它的振动频率为每秒92亿次。
17. The Estimation of Atomic Clock's Frequency Stability by Wavelet Variance
    利用小波方差进行原子钟频率稳定度的估计
18. Optical fiber analog communication system for transmitting high steady atomic clock signals
    传输高稳定原子钟信号的光纤模拟通信系统
19. An atomic clock based on vibrational frequency of the nitrogen atom in the ammonia molecule.
    以氨水分子中的氮原子的振动频率为基础的原子钟。
20. Such a molecular or atomic clock is now being developed and promises to be very accurate.
    这种分子和原子钟目前正在发展中，预期能有很高的准确度。
21. Experimental results show that the slow cesium atomic clock time a very small unit.
    结果实验表明铯原子钟慢了很小的一个时间单位。
22. Precise comparisons of optical resonance frequencies of atomic hydrogen and other atoms with the microwave frequency of a cesium atomic clock are establishing sensitive limits for possible slow variations of fundamental constants.
    通过用铯原子钟的微波频率对氢原子和其他原子的光学共振频率的精密比较，将确定基本物理常数可能的缓慢变化的灵敏度极限。
23. In this paper, the system structure of an optically pumped cesium beam atomic clock computer model is introduced. This cesium atomic clock computer model included program modules of cesium oven, pumping laser, detecting laser, Ramsey microwave cavity, C field, fluorescence detecting system.
    介绍了光抽运铯原子钟计算机模型系统的基本结构体系，该计算机模型系统包括铯原子炉、抽运和检测激光、Ramsey微波作用腔、C场、荧光检测系统等程序模块。
24. The random variation in atomic clock noise is presented at small scale.
    在小尺度上，原子钟噪声是完全随机的变化特征。
25. A clock disciplined method based on Kalman filter was given, and this method was improved. It could steer one atomic clock phase-time into time standard precisely.
    介绍了一种利用Kalman滤波器进行原子钟控制的方法，并对此方法作了改进，可以把一个原子钟的相位&时间非常精确地控制到时间标准上。
26. So the miniature atomic clock is becoming the research direction of atomic clock in recent years.
    因此，微型化原子钟成为近几年各国研究的一个热点。
27. The low noise frequency synthesize technology is used in the high performance atomic clock.
    在高性能原子钟中都采用低噪声频率合成技术。
28. High-precision atomic clock technology requires corresponding measurement techniques of high accuracy frequency stability.
    有了高精度原子钟技术也需要有与之相适应的高精度频率稳定度测量技术。
29. The theoretical basis of the time scale algorithm is the atomic clock noise model.
    对于时间尺度算法，其理论基础是原子钟噪声模型。
30. The various time-domain variances and periodic components suffered by atomic clocks are analyzed by the measured atomic clock data.
    结合实测数据，对时域系列方差和原子钟周期性影响因素进行分析。

noun

1. a timepiece that derives its time scale from the vibration of atoms or molecules