Components of combined uncertainty

[Jan Grajciar CMI]

Hi Michael,

is it possible to define a LinProp object in MATLAB with all the components that make up the combined uncertainty so that all components can be seen in the unc_budget. For example, when I measure multimeter resistance and I want to create an object with uncertain of range and reading from the manufacturer's specifications.

Thanks

Jan

[Jan Grajciar CMI]

Dear Michael,

let me try differently. If I wanted to transfer this part of the model using the METAS UncLib library (in MATLAB), can I imagine it like this (assuming that the input wave a₁ is reflected completely) 


NoiseFloor = LinProp(0, NL1);
TraceNoise = LinProp(1, NH1);
Linearity = LinProp(1, L1);

% variables NL1, NH1 and L1 are standard uncertainties

b1 = a1 * TraceNoise * Linearity + NoiseFloor;



when I want to see individual components of uncertainty in my budget?

Thanks

Jan

[Michael Wollensack METAS]

Hi,

you can do it like that:

>> a = 0.5;

>> NL1 = 1;

>> NH1 = 1;

>> L1 = 1;

>> NoiseFloor = LinProp(0, NL1, 'Noise Floor');

>> TraceNoise = LinProp(1, NH1, 'Trace Noise');

>> Linearity = LinProp(1, L1, 'Linearity');

>> b = a * TraceNoise * Linearity + NoiseFloor;

>> unc_budget(b)

>> 

Regards

Michael