Transfer function
3.1.1 Instrumentation
Instrumentation is concerned with producing a measurable output from the signal provided by a transducer. This is usually done through a series of steps or processes, starting with the transducer signal or input, Qi.
It is desirable to have linear relationships between the inputs and outputs of the various processes so that Q3 = K1 K2 K3 Qi.
In practice, errors and noise are transmitted at each step along with the signal of interest. The process of instrumentation is to maximise the transmission of signal and to minimise the errors and noise. The process is concerned with:
• the electrical nature ...
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