Development of Time Scale and Time Measurement Technology of Modern Space-time Measurement
As one of basic quantities in physics,time is not only the base of high precision measurement,but also plays an important role in the fields of basic scientific research,establishment of space-time reference system,space launch,aerosapce telemetry tracing and control,navigation guidance and control.Based on the principle and method of time measurement,the historical development of time measurement technology was reviewed systemati-cally and the status quo and relationship of time scales,incorporating universal time,atomic time and coordinate time were offered in this paper.The definitions and realization methods,as well as conversions for each time scale were studied.The prospect for the development of time measurement technology in the future was also discussed.It is a reference not only in understanding the development of time scale and time measurement technology but also in the data processing and application of high precision time measurement.
万方数据
维普
