2) Time and frequency remote comparison
时间频率远距离比对
3) frequency standard comparison
频标比对
1.
High resolution frequency standard comparison method;
一种高精度频标比对方法
2.
Based on the recognition of periodic law of phase variance between two periodic frequencies, on the reference of previous frequency standard comparison methods and the basis of phase-coincidence theory, this paper represents a new double phase-detecting freque.
随着科技的高速发展，对原子频标和频标比对精度的要求也愈来愈高，设计出能实现高精度频标比对的仪器设备，在当今的时频测量领域有着十分重大的意义。
3.
A frequency standard comparison platform based on beat-frequency technique has been designed to evaluate the difference of performance between the periodic frequency measurement with counter and the digital beat-frequency signals processing with computer, the fundamental of measurement and realization of the two sets of systems are analyzed.
针对差拍计数器测量系统和差拍数字频标比对系统各自的频率测量特性、精度表现等方面的差异,建立了基于差拍技术的频标比对平台以便进行测试比较。
4) optical frequency comparison
光频比对
5) Frequency comparison
频率比对
6) frequency comparison
频率对比
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条