Patent Document ID: 20020147571
Application ID: 09907702
Patent Flag: 0

Claim One:
1. A measuring method of making measurements on a predetermined characteristic amount of a plurality of samples and obtaining a standard deviation of said predetermined characteristic amount of said plurality of samples, wherein averaging process of making measurements by the predetermined number N 0 and obtaining an average value of measured results is performed in each one of said measurements, said measuring method comprising the steps of: (a) making plural measurements on said predetermined characteristic amount of one of said plurality of samples under the same condition, thereby calculating a standard deviation &sgr; i of said one of said plurality of samples from measured results of said measurements; (b) making a measurement on said predetermined characteristic amount of each of said plurality of samples under the same condition, thereby calculating a standard deviation &sgr; s of said plurality of samples from said measured results of said measurements; (c) obtaining the number of averaging N using said standard deviations &sgr; i and &sgr; s and the predetermined number N 0 ; and (d) performing again said averaging process by the number of averaging N while measuring said predetermined characteristic amount, and calculating said standard deviation &sgr; s of said plurality of samples from measured results of said measurements made on said plurality of samples.