F1等级公斤、克、毫克组砝码标准装置
收藏资源简介:
F2等级砝码的检定采用同标称值的F1等级标准砝码作为标准,在相应精度的天平上采用替代法进行检定。 计量标准工作原理:将标准砝码r放在衡量仪器秤盘上,由衡量仪器平衡位置读数Ir,再将被检砝码t放在衡量仪器秤盘上,由衡量仪器平衡位置读数It,计算出读数差值△I,△I等于It和Ir之差,根据规程测量循环可采用ABBA或ABA法,A代表标准砝码,B代表被检砝码,然后根据相应的计算公式计算出被检砝码的折算质量修正值mcc。
The verification of class F2 weights uses class F1 standard weights of the same nominal value as the reference standard, and is performed using the substitution method on a balance with matching precision. Working principle of the metrological standard: Place the standard weight r on the weighing pan of the weighing instrument, and record the balance position reading Ir from the weighing instrument. Next, place the weight under test t on the weighing pan of the weighing instrument, and record the balance position reading It from the weighing instrument. Calculate the reading difference ΔI, which is equal to the difference between It and Ir. Per the verification regulations, the measurement cycle can adopt either the ABBA or ABA method, where A denotes the standard weight and B denotes the weight under test. Subsequently, calculate the converted mass correction value mcc of the weight under test using the corresponding computational formula.




