JJF（黔）57-2021 网络时间（NTP）服务器校准规范
简介
JJF（黔）57-2021
网络时间（NTP）服务器校准规范
Calibration Specification of Network Time Servers Based on Network Time Pr otocol 目 录 引言·························································································（1） 1 范围 ·····················································································（1） 2 引用文件 ···············································································（1） 3 概述 ·····················································································（1） 4 计量特性 ···············································································（2） 4.1 秒脉冲 ···············································································（2） 4.2 主振器性能 ·········································································（2） 4.3 时间保持偏差 ······································································（2） 4.4 NTP 同步偏差·······································································（2） 5 校准条件 ···············································································（2） 5.1 环境条件 ············································································（2） 5.2 测量标准及其他设备·····························································（3） 6 校准项目和校准方法································································（4） 6.1 校准项目············································································（4） 6.2 校准方法 ············································································（4） 7 校准结果表达与处理································································（7） 7.1 校准记录 ············································································（7） 7.2 校准结果的处理···································································（7） 8 复校时间间隔 ·········································································（8） 附录 A 网络时间服务器 NTP 同步偏差校准结果的不确定度评定示例 ·······（9） 附录 B 校准记录格式···································································（14） 附录 C 校准证书内页格式·····························································（15） 1 范围 本规范适用于采用网络时间协议（Network Time Protocol, NTP）进行网络授时的网络时间服务器的校准。 2 引用文件 本规范引用了下列文件： JJG 180 电子测量仪器内石英晶体振荡器 JJG 181 石英晶体频率标准 JJG 292 铷原子频率标准 JJF 1180—2007 时间频率计量名词术语及定义 JJF 1403—2013 全球导航卫星系统（GNSS）接收机（时间测量型）校准规范 JJF 1724—2018 时码发生器校准规范 凡是注日期的引用文件，仅注日期的版本适用于本规范；凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本规范。
JJF（黔）57-2021
网络时间（NTP）服务器校准规范
Calibration Specification of Network Time Servers Based on Network Time Pr otocol 目 录 引言·························································································（1） 1 范围 ·····················································································（1） 2 引用文件 ···············································································（1） 3 概述 ·····················································································（1） 4 计量特性 ···············································································（2） 4.1 秒脉冲 ···············································································（2） 4.2 主振器性能 ·········································································（2） 4.3 时间保持偏差 ······································································（2） 4.4 NTP 同步偏差·······································································（2） 5 校准条件 ···············································································（2） 5.1 环境条件 ············································································（2） 5.2 测量标准及其他设备·····························································（3） 6 校准项目和校准方法································································（4） 6.1 校准项目············································································（4） 6.2 校准方法 ············································································（4） 7 校准结果表达与处理································································（7） 7.1 校准记录 ············································································（7） 7.2 校准结果的处理···································································（7） 8 复校时间间隔 ·········································································（8） 附录 A 网络时间服务器 NTP 同步偏差校准结果的不确定度评定示例 ·······（9） 附录 B 校准记录格式···································································（14） 附录 C 校准证书内页格式·····························································（15） 1 范围 本规范适用于采用网络时间协议（Network Time Protocol, NTP）进行网络授时的网络时间服务器的校准。 2 引用文件 本规范引用了下列文件： JJG 180 电子测量仪器内石英晶体振荡器 JJG 181 石英晶体频率标准 JJG 292 铷原子频率标准 JJF 1180—2007 时间频率计量名词术语及定义 JJF 1403—2013 全球导航卫星系统（GNSS）接收机（时间测量型）校准规范 JJF 1724—2018 时码发生器校准规范 凡是注日期的引用文件，仅注日期的版本适用于本规范；凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本规范。
推荐下载
精品资源合集一键下载