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NR系列氢激射器频标是NASA哥达德空间飞行中心提供资金和指导由应用物理实验室设计的,用于外壳的(Crustal)动态研究。为了提高氢激射器在延长几个星期后在现场实验的置信度,在NASA—NR型氢激射器内裝上了微处理机监控系统。这个系统提供了对腔体谐振频率的控制,对钟输出的同步和数据的传输。这一传输可把激射器关键的性能特性数据归档加到甚长基线干涉仪数据处理用的数据库中去。监测和遥控指令的特性为预防、维护和控制提供诊断信息,以调整激射器的工作参数。监测信息可以在本地观察,也可以通过电话或调制解调器在远处观察。微处理机提供的灵活性使激射器频率标准成为一种完全独立的时频仪器。
The NR Series Hydrogen Lasers are NASA’s Goddard space flight centers that provide funding and direct Crustal dynamic research designed by Applied Physics Labs. To improve the confidence of hydrogen lasers in field experiments after prolonged weeks, a microprocessor-based monitoring system was installed in the NASA-NR hydrogen lasers. This system provides the control of the resonant frequency of the cavity, the synchronization of the clock output and the transmission of data. This transmission can be used to archive key performance characteristics of lasers into a database for the processing of very long baseline interferometers. The characteristics of the monitoring and telecommand instructions provide diagnostic information for prevention, maintenance and control to adjust the operating parameters of the lasers. Monitoring information can be observed locally or remotely by telephone or modem. Microprocessors provide the flexibility to make the launcher frequency standard a completely independent time-frequency instrument.