《光明日报》（2026年02月14日 04版） [ 责编：任子薇 ] 国际计量局在第454期国际时间频率公报中发布了中国计量院研制的锶原子光晶格钟NIM-Sr1的校准数 据，表明这台光钟通过了国际时间频率咨询委员会专家组的严格审核。此次一同通过专家组审核的还有 中国计量院研制的新型铯原子喷泉钟NIM6，其不确定度指标达到铯原子基准钟国际顶尖水平。中国计 量院参与校准国际标准时间的基准钟实现了从"单核牵引"到"三擎驱动"的重大跨越，标志着我国在国际 时间频率基准研究领域稳居全球第一梯队。 光明日报北京2月13日电（记者李春剑）近日，中国计量科学研究院（以下简称"中国计量院"）研制的 锶原子光晶格钟NIM-Sr1正式获准校准国际标准时间，实现了我国光钟参与校准国际标准时间"零"的突 破。这是中国光钟研究进程中的里程碑式节点，将引领更多光钟参与校准国际标准时间，全面提升我国 在国际时间频率研究领域的影响力。 国际标准时间是由分布于全球各地的守时机构联合产生的，由国际上最精准的基准原子钟来校准。目前 用来产生"秒"的铯原子钟性能相当于几亿年不差一秒，而最新研制的光钟可以达到几十亿年到上百亿年 不差一秒，即将取代铯原子 ...

Core Viewpoint - The establishment of four specialized metrology technical committees in Henan Province aims to enhance the province's capacity for green low-carbon development, advanced manufacturing, technological innovation, and public welfare through precise technical services [1][2]. Group 1: Establishment of Technical Committees - Four specialized metrology technical committees have been established, focusing on carbon measurement, acoustics and non-destructive testing, length and optics, and chemistry and standard materials [1]. - The carbon measurement committee will strengthen research on carbon emission measurement technology, providing precise measurement support for carbon accounting, monitoring, and trading [1]. - The acoustics and non-destructive testing committee will focus on the manufacturing industry and infrastructure construction, tracking industry trends and ensuring the accuracy and reliability of product quality testing [1]. Group 2: Development and Impact - Henan Province has been a pioneer in establishing provincial-level specialized metrology technical committees, proposing a "specialized + service industry" integrated development approach [2]. - A total of 12 metrology technical committees covering ten major fields have been formed, with 108 local technical standards published and 330 existing standards evaluated for effectiveness, significantly improving metrology supply levels [2]. - These committees serve as a provincial metrology think tank, linking over 30 leading enterprises and more than 860 high-tech, innovative small and medium-sized enterprises, addressing over 430 critical measurement challenges in military and high-precision instrument manufacturing [2].

Core Insights - The establishment of four specialized metrology technical committees in Henan Province marks a significant step in supporting the province's industrial metrology development [1][2] - These committees will focus on carbon measurement, acoustics and non-destructive testing, length and optics, and chemistry and standard materials, providing essential technical support for various industries [1][2] Group 1: Specialized Committees - The Carbon Measurement Technical Committee will enhance research on carbon emission measurement technology, ensuring accurate measurement support for carbon accounting, monitoring, and trading in Henan [1] - The Acoustics and Non-Destructive Testing Technical Committee will focus on manufacturing and infrastructure, tracking industry trends, and revising measurement standards to ensure product quality [1] - The Length and Optics and Chemistry and Standard Materials Committees will strengthen value transmission and traceability systems, addressing measurement needs in the national market [1] Group 2: Broader Impact - The new committees aim to support Henan's green low-carbon development, advanced industrial manufacturing, technological innovation, and public welfare [2] - Henan has been proactive in establishing provincial-level specialized metrology committees, having formed 12 committees covering ten metrology fields and published 108 local technical standards [2] - The province has addressed over 430 measurement challenges in industries such as military and high-end instruments, linking with more than 30 leading enterprises and over 860 high-tech and gazelle companies [2]