| 摘要 |
PROBLEM TO BE SOLVED: To enable an average value to be acquired in a short time and reduce manufacturing cost.SOLUTION: When acquiring an average value of La (2≤La=Na-Ma-Mb) measured values except the measured values of Ma (2≤Ma≤Na-4) small values and the measured values of Mb (2≤Mb≤Na-4) large values of Na (6≤Na) values: a first measured value is stored in regions 6a, 6b, 6d (steps 12 to 14); a total sum in the region 6a, a first total value in the region 6b, and a measured value in the region 6d are updated according to a Ka-th (2≤Ka≤Ma) measured value (A-processing 10A); the total sum, the first total value, a second total value in the region 6c, and measured values in the regions 6d, 6e are updated according to measured values from Kb-th (Kb=Ma+1) to Kd-th (Ma+Mb+1≤Kd≤Na) measured values (B-processing 10B, C-processing 10C, processing 10D); and thereafter, an average value is acquired by dividing a value obtained by subtracting the first total value and the second total value from the total sum by La (step 15). |
