1, calibration: use standard measuring instruments to check whether the accuracy (precision) of the instruments used meets the standards.
2. Calibration: a set of operations to determine the indication error of measuring instruments under specified conditions.
Second, the role is different.
1. calibration: determine the input-output relationship of the instrument or measuring system, and give the instrument or measuring system a calibration value; Determine the static characteristic index of the instrument or measuring system.
2. Calibration: The calibration results can be used to evaluate the indication errors of measuring instruments, measuring systems or physical measuring tools, or to assign values to marks on any scale.
Extended data:
Chemical calibration method
1. Direct calibration: accurately weigh a certain amount of reference substance, dissolve it in water, and titrate with the solution to be calibrated until the reaction is complete. Accord to that consumed volume of the solution to be calibrate and the quality of the reference substance, the accurate concentration of the solution to be calibrated is calculated.
2. Indirect calibration: Some standard solutions have no suitable reference reagent for calibration, and can only be calibrated with another standard solution with known concentration. For example, the acetic acid solution is calibrated with NaOH standard solution, and the oxalic acid solution is calibrated with KMnO4 standard solution. Of course, the system error of indirect calibration is larger than that of direct calibration.
Baidu encyclopedia-calibration
Baidu encyclopedia-calibration