为了求得各种几何量与物理量的最可靠值,在计量工作中常常对一个量要进行多次观测,再取它们的平均值作为观测结果。我们知道,在计量工作中往往由于观测中含有粗差,而导致测量结果的错误。为了保证成果中不包含粗差,常常对多次观测的最大值与最小值加以限制,如对某量A观测,得观测值 a_1,a_2,……,a_n应限制a最大—a最小的差值不超过某一数值。“a最大—a最小一般称为极差,极差的限值称为极差限。为了消除粗差,可以利用来伊达和肖维 In order to obtain the most reliable value of various geometric quantities and physical quantities, it is often necessary to make multiple observations of one quantity in the measurement work and take the average of them as the observation result. We know that errors in measurement results often result from measurement errors due to gross errors in the observations. In order to ensure that the results do not contain gross errors, often the maximum and minimum multiple observations to be limited, such as a certain amount of A observations, observations a_1, a_2, ......, a_n should limit a maximum-a minimum difference Value does not exceed a certain value. "A maximum-a minimum is generally referred to as very poor, very poor limit called the very poor. In order to eliminate gross errors, you can use to Ida and Shaw