| 1.80 | measurement function | ||
| Function of quantities, the value of which, when calculated using known quantity values for the input quantities in a measurement model, is a measured quantity value of the output quantity in the measurement model. | |||
| Note 1: | If a measurement model h(Y, X1, …, Xn) = 0 can explicitly be written as Y = f(X1,…, Xn), where Y is the output quantity in the measurement model, the function f is the measurement function. More generally, f may symbolize an algorithm, yielding for input quantity values x1,…, xn a corresponding unique output quantity value y = f(x1,…, xn). | ||
| Note 2: | A measurement function is also used to calculate the measurement uncertainty associated with the measured quantity value of Y. | ||
| Source: [VIM 2.49]. | |||
| 1.80 | measurement function | ||
| Function of quantities, the value of which, when calculated using known quantity values for the input quantities in a measurement model, is a measured quantity value of the output quantity in the measurement model. | |||
| Note 1: | If a measurement model h(Y, X1, …, Xn) = 0 can explicitly be written as Y = f(X1,…, Xn), where Y is the output quantity in the measurement model, the function f is the measurement function. More generally, f may symbolize an algorithm, yielding for input quantity values x1,…, xn a corresponding unique output quantity value y = f(x1,…, xn). | ||
| Note 2: | A measurement function is also used to calculate the measurement uncertainty associated with the measured quantity value of Y. | ||
| Source: [VIM 2.49]. | |||