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, X_{1}, …, X_{n}) = 0 can explicitly be written as Y = f(X_{1},…, X_{n}), 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 x_{1},…, x_{n} a corresponding unique output quantity value y = f(x_{1},…, x_{n}). | ||

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, X_{1}, …, X_{n}) = 0 can explicitly be written as Y = f(X_{1},…, X_{n}), 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 x_{1},…, x_{n} a corresponding unique output quantity value y = f(x_{1},…, x_{n}). | ||

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]. |

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