中国水利Issue(6)：53-59,7.DOI:10.3969/j.issn.1000-1123.2026.06.008
ISO 2537修订背景下的转子式流速仪技术演进与标准化研究
Technological evolution and standardization of rotating-element current-meters in the context of ISO 2537 revision
摘要
Abstract
ISO 2537:2007,Hydrometry—Rotating-element current-meters,has not been updated since the fourth edition(2007),making it difficult to adapt to the current development of hydrological testing technology.Through literature analysis and comparative research,this study systematically reviews the 230-year technological evolution of rotating-element current-meters and analyzes the coordination issues between ISO 2537 and related standards.Drawing on China's practical experience with GB/T 11826-2019,the study identifies key directions for the revision of the international standard.The technological evolution of rotating-element current-meters can be divided into three historical periods:the early empirical stage(1790-1880),the industrialization stage(1880-1960),and the international standardization stage(1960-1974),giving rise to two main technical lineages:cup-type and propeller-type current-meters.Associated standards such as ISO 772 and ISO 3455 have adopted the GUM uncertainty assessment framework,whereas ISO 2537 still relies on traditional error analysis,reflecting a theoretical lag.GB/T 11826-2019 tightens the starting velocity requirement by 50%and adds a 0.008 m/s ultra-low-speed application for laboratory hydraulic physical model measurements,offering a valuable reference for the international standard revision.Rotating-element current-meters remain irreplaceable under extreme conditions such as shallow water(depth＜0.2 m)and high sediment concentration(＞10 kg/m3).Rotating-element current-meters has the conditions to transition to professional metrological standards,and the revised standard needs to introduce an uncertainty assessment framework,clarify the role of rotating-element current-meters as velocity metrological references,draw on the practical experience of different countries,and develop an international standard suited to current needs,thereby providing technical support for the construction of global hydrometric networks.关键词
转子式流速仪/ISO 2537/标准修订/不确定度评估/计量溯源/水文测验/技术演进Key words
rotating-element current-meter/ISO 2537/standard revision/uncertainty assessment/metrological traceability/hydrometry/technological evolution分类
建筑与水利引用本文复制引用
李晨希,方卫华..ISO 2537修订背景下的转子式流速仪技术演进与标准化研究[J].中国水利,2026,(6):53-59,7.基金项目
国家重点研发计划(2022YFC3204501). （2022YFC3204501）
