圆柱齿轮流量计变压修正方法研究  

Study on Correction Method of Cylindrical Gear Meter under Variable Pressure Condition

作　　者：张永胜[1] 张毅治[1] ZHANG Yongsheng;ZHANG Yizhi(Changcheng Institute of Metrology & Measurement,Beijing 100095,China)

机构地区：[1]航空工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2019年第2期40-43,共4页Metrology & Measurement Technology

摘　　要：为研究液压油介质的圆柱齿轮流量计在变压工况下仪表系数修正方法,利用变压体积管流量标准装置对齿轮流量计在多个压力点下进行了校准试验,通过解耦曲线拟合和二元曲面拟合两种方法对校准结果进行了拟合计算。经两种方法拟合计算,各工况下齿轮流量计仪表系数与校准结果误差均小于0. 4%,证明两种拟合修正方法的有效性。In order to study the correction method of instrument coefficient of cylindrical gear meter that works in hydraulic oil under variable pressure conditions,the gear flowmeter is calibrated at different pressure conditions with the flow standard facility which works with hydraulic Oil.Two methods of fitting with binary surfaces are used to fit the calibration results,and the error of the meter coefficient after corrected by two methods at each condition is less than 0.4% by the fitting correction,and it's confirmed that the correction methods are useful.

关 键 词：液压油 变压工况 圆柱齿轮流量计 仪表系数 

分 类 号：TB9[一般工业技术—计量学]