开机特性智能校准装置的设计
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摘要
开机特性是反映晶振在7 h内频率漂移程度的参数,是评价以晶体振荡器作为时间基准的各类仪器的重要指标。为解决时钟测试仪类电力仪器开机特性校准难、送检量多等问题,提出一种开机特性智能校准装置设计方案。该装置硬件部分由铷原子频率标准、频率分析仪和智能校准控制器组成。其中,通过研制智能校准控制器,可同时校准21台时钟测试仪及同类仪器,且该套装置隔离度高、切换速度快,可满足1～20 GHz任意频点的试验条件。软件部分采用自动多线程的编程语言LabVIEW编写,满足试验需求,具备良好的人机交互界面。该装置具备适用频段宽、准确控制时间间隔、自动数据处理、高效校准、便于携带等优点,极大提高了校准效率。经比对,E_n值小于1,完全满足时钟测试仪校准规范以及其他规程的相关要求。
The warm-up is a parameter which reflects the degree of frequency drift for the crystal oscillator within 7 h,it is an important indicator for evaluating instruments using a crystal oscillator as a time base. An intelligent calibration device for warmup is proposed in order to solve the problems in the calibration of clock testers,such as personal error,data processing difficulties,and low working efficiency. The device is composed of a rubidium atomic frequency standard,a frequency analyzer,an intelligent calibration controller. The intelligent calibration controller can simultaneously calibrate 21 clock testers and similar instruments,it has high isolation and fast switching,which meets the test conditions of any frequency point with 1 ～ 20 GHz. The software has a good human-computer interface which is programmed by Lab VIEW. The device has the advantages of wide frequency band,accurate time interval,automatic data processing,high efficiency calibration,etc. The device meets the relevant requirements of the clock tester calibration by the comparison result of E_n< 1.
The warm-up is a parameter which reflects the degree of frequency drift for the crystal oscillator within 7 h,it is an important indicator for evaluating instruments using a crystal oscillator as a time base. An intelligent calibration device for warmup is proposed in order to solve the problems in the calibration of clock testers,such as personal error,data processing difficulties,and low working efficiency. The device is composed of a rubidium atomic frequency standard,a frequency analyzer,an intelligent calibration controller. The intelligent calibration controller can simultaneously calibrate 21 clock testers and similar instruments,it has high isolation and fast switching,which meets the test conditions of any frequency point with 1 ～ 20 GHz. The software has a good human-computer interface which is programmed by Lab VIEW. The device has the advantages of wide frequency band,accurate time interval,automatic data processing,high efficiency calibration,etc. The device meets the relevant requirements of the clock tester calibration by the comparison result of E_n< 1.
引文
[1]戴昌名.晶体振荡器的自动测试系统设计与实现[D].成都:电子科技大学,2018.
[2]孙杰,韩海林,陈习权.基于GPIB接口的时钟测试仪内部晶振频率自动测试系统[J].上海计量测试. 2012,(5):8-9.
[3]国家质量监督检验检疫总局. JJG180-2002电子测量仪器内石英晶体振荡器检定规程[S]. 2002:2-6.
[4]国家质量监督检验检疫总局. JJF1662-2017时钟测试仪校准规范[S]. 2017:3.
[5]国家质量监督检验检疫总局. JJG349-2014通用计数器检定规程[S]. 2014:4.
[6]朱长春,梁艳,韩龙.铷原子频率标准开机特性测量方法的研究[J].现代测量与实验室管理,2013(4):6-7.
[7] PONCE C P,MOLINA G A. Lab VIEW for intelligent control research and education[C]//IEEE International Conference on Elearning in Industrial Electronics. IEEE,2010.
[8]姜万顺,邓建钦.太赫兹测试测量技术与仪器研究进展[J].国外电子测量技术,2014(5):20-23.
[9]邓鑫,朱磊,潘杨,等. STM32CubeMX的全速USB通信及测速模块设计[J].单片机与嵌入式系统应用,2018(9):35-38.
[10]杨乐平. Lab VIEW程序设计与应用[M]. 2版.北京:电子工业出版社,2001:381-408.
[11]张光华,栗健,赵玲. Lab VIEW平台上的温度自动检测装置研究[J].自动化仪表,2017(6):71-74.
[2]孙杰,韩海林,陈习权.基于GPIB接口的时钟测试仪内部晶振频率自动测试系统[J].上海计量测试. 2012,(5):8-9.
[3]国家质量监督检验检疫总局. JJG180-2002电子测量仪器内石英晶体振荡器检定规程[S]. 2002:2-6.
[4]国家质量监督检验检疫总局. JJF1662-2017时钟测试仪校准规范[S]. 2017:3.
[5]国家质量监督检验检疫总局. JJG349-2014通用计数器检定规程[S]. 2014:4.
[6]朱长春,梁艳,韩龙.铷原子频率标准开机特性测量方法的研究[J].现代测量与实验室管理,2013(4):6-7.
[7] PONCE C P,MOLINA G A. Lab VIEW for intelligent control research and education[C]//IEEE International Conference on Elearning in Industrial Electronics. IEEE,2010.
[8]姜万顺,邓建钦.太赫兹测试测量技术与仪器研究进展[J].国外电子测量技术,2014(5):20-23.
[9]邓鑫,朱磊,潘杨,等. STM32CubeMX的全速USB通信及测速模块设计[J].单片机与嵌入式系统应用,2018(9):35-38.
[10]杨乐平. Lab VIEW程序设计与应用[M]. 2版.北京:电子工业出版社,2001:381-408.
[11]张光华,栗健,赵玲. Lab VIEW平台上的温度自动检测装置研究[J].自动化仪表,2017(6):71-74.