elektr0
Full Member level 5
Hello,
consider a total measurement uncertainty M that is given with a defined confidence level of 95%
(95% of all measured values are within plus/minus M).
If the error of the physical quantity has Gaussian distribution, the corresponding variance (σ²) is calculated
σ² = (M/C)²
with σ being the standard deviation and C being the coverage factor.
C = 1.96 in case of 95%.
So my question is, how to determine the variance σ² if the error of the measured physical quantity follows uniform (rectangular) distribution.
Which coverage factor has to be used ?
Thanks for any reply.
-e
consider a total measurement uncertainty M that is given with a defined confidence level of 95%
(95% of all measured values are within plus/minus M).
If the error of the physical quantity has Gaussian distribution, the corresponding variance (σ²) is calculated
σ² = (M/C)²
with σ being the standard deviation and C being the coverage factor.
C = 1.96 in case of 95%.
So my question is, how to determine the variance σ² if the error of the measured physical quantity follows uniform (rectangular) distribution.
Which coverage factor has to be used ?
Thanks for any reply.
-e