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1 前言 上海威尔泰工业自动化股份有限公司在本市虹中路263号投资3500多万元,耗时一年半,建立起一套全球最大的变水头大流量标准装置,经上海市科技情报所查新检索(编号20030183Z),达到了国际先进水平,该装置还经过上海市计量测试技术研究院的检定(证书号分别为200203-2-601649,200203-2-601650,200203-2-601651,200203-2-601652,200203-1-601775,200203-1-601959,200203-1-601996),其装置不确定度达到了(0.03～0.05)％,(k=2)。该装置可以标定DN10～DN3800的电磁流量计,其流量范围为(0～25000)m~3/h。
1 Introduction Shanghai Weier Tai Industrial Automation Co., Ltd. 263 Hong Zhong Road in the city invested more than 3500000 yuan, a year and a half to establish a set of the world’s largest variable head flow standard device, the Shanghai Science and Technology Intelligence Search new search (code 20030183Z), reached the international advanced level, the device also passed the test of Shanghai Institute of Measurement and Testing Technology (Certificate No. 200203-2-601649, 200203-2-601650, 200203-2-601651, 200203-2-601652, 200203-1-601775, 200203-1-601959, and 200203-1-601996), and the device uncertainty was (0.03-0.05)% (k = 2). The device can be calibrated DN10 ~ DN3800 electromagnetic flowmeter, the flow range (0 ~ 25000) m ~ 3 / h.