【摘要】 为解决我国微小气体流量的量值溯源问题 ,研制了用于对微小喉径的音速喷嘴进行量值传递的气体流量标准装置 ,该装置具有流量小、准确度高、范围宽等特点。更多还原

【Abstract】 In order to solve the problems of the value traceability of tiny gas flow, we have established a gas flow calibration facility used to verify the sonic nozzles with small diameters. It has some characterizations such as small flow rate, high accuracy and wide measurement range.更多还原