实验B1拉脱法测液体表面张力系数实验数据及其数据处理:1硅压阻力敏传感器定标砝码0.501.001.502.002.503.003.50U M关系图电压14.829.944.759.874.789.7105.0斜率,力敏传感器灵敏度2金属环外、内直径的测量次数12345平均值D1(mm)34.9234.9234.9434.9634.9034.928D2(mm)33.1033.1433.1433.0833.1233.116,3竖直方向表面张力时电压和拉断后电压的测量次数12345平均值U1(mV)-7.0-7.1-7.1-7.2-7.4U2(mV)-52.8-52.9-52.8-52.9-52.9U(mV)45.845.845.745.745.545.7,4求表面张力系数由公式得,5求相对误差。水温: t = 27.0 , 水在不同温度下的表面张力系数(部分)温度12131415161773.773.673.473.373.173.0温度18192021222372.872.772.572.472.272.1温度24252627282971.971.871.671.571.371.2