| 摘要 |
PURPOSE:To weigh a liquid by an arbitrary aimed weight with high accuracy by collecting the liquid by a fixed volume which does not exceed the aimed weight and calculating the additional amount of the liquid to be collected required for the aimed weight based on the apparent density of the liquid. CONSTITUTION:During the first operation, the apparent density of a sample liquid is assumed at '1' and the liquid is collected by the volume V1 decided from V1(ml)=WXR1 in accordance with a ratio R1 (R1=0.5 for ordinary liquid) preset to an aimed weight W(g). Then the apparent density D of the liquid is found from D(g/ml)=W1/V1. After finding the density D, the second (additional) volume V2 to be collected of the liquid is decided from V2=W/D-V1. When the liquid is collected by the volume V2 and added to the first collected amount, the liquid can be measured by the aimed volume W. The weighing accuracy can be improved further when the liquid is collected by a volume V3=R2V2 (R2=0.5-0.99) as the second collecting amount and the volume V3 is added to the first collected amount. Then, after measuring the total weight W2, the liquid is collected by a third (additional) collecting volume V4=(W-W2)/D and the volume V4 is added to the first and second collected amounts. |
