In order to evaluate the measurement uncertainty of the indication error of the float flowmeter,the static mass method water flow standard device is selected as the standard,and the uncertainty introduced by the variables involved in the verification process is analyzed and evaluated by studying the working principle,verification process and verification model of the float flowmeter. Combined with an example,the uncertainty evaluation result of the indi-cation error of the float flowmeter is obtained,which verifies the practicability and feasibility of the method and is con-venient for scientific evaluation of the verification and calibration results.
关键词
浮子流量计/质量法/空气浮力修正/水密度/水流量标准装置/测量模型
Key words
float meter/mass method/air buoyancy correction/water density/water flow standard facility/measurement model