Through the understanding of the concept of constant temperature and humidity tester, we can see the main differences between measurement uncertainty and measurement error in the following aspects:
1. Differences in assessment purposes:
The measurement uncertainty is to indicate the dispersion of the measured value;
The measurement error is to indicate the degree to which the measurement result deviates from the true value.
2. The difference between the evaluation results of the constant temperature and humidity tester:
The measurement uncertainty is an unsigned parameter, which is expressed in terms of standard deviation or multiples of standard deviation or half-width of the confidence interval. It is evaluated by people based on information such as experiments, data, and experience. ;
The measurement error is a value with a positive or negative sign, which is the measurement result minus the true value being measured. Since the true value is unknown, it is often not accurately obtained. When the agreed true value is used instead of the true value, only the estimated value.
3. The difference between the factors affecting the constant temperature and humidity tester:
The measurement uncertainty is obtained by people through analysis and evaluation, so it is related to people's understanding of the measured, influence and measurement process;
Measurement errors exist objectively, are not affected by external factors, and do not change with the degree of human knowledge;
Therefore, when performing uncertainty analysis, various influencing factors should be fully considered and the evaluation of the uncertainty should be verified. Otherwise, due to insufficient analysis and estimation, the uncertainty of the evaluation may be greater when the measurement result is very close to the true value (that is, the error is small), or may not be given when the measurement error is actually large. The degree of certainty is too small.
T Type Glass Lid,Glass Lid With Wide Rim,Glass Lid For Cookware,Tempered Glass Lid For Frying Pan
Hebei Bozheng Glasswork Co.,Ltd , https://www.bozhengglass.com