The Essence of Measurement
This text presents the subject of measurement, and its use within instrumentation systems, as an integrated and coherent subject. The principal aim of the book is to provide a thorough understanding of the theoretical considerations which govern the choice and usage of suitable instruments.
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accuracy analog signal applied attenuation Band-pass filter Band-stop filter bridge circuit calculated calibration capacitance Chapter chart recorder coil components connected curve damping ratio data points data set data values defined deflection deviation devices difference displacement electrical electronic equation expressed filter flow rate flowmeters fluid frequency high-pass filter impedance inductance input signal instrument output intelligent instrument known linear liquid low-pass filter magnetic magnitude maximum mean value measured signal measurement errors measurement inaccuracy measurement resolution measurement sensitivity measurement situations measurement system measuring instrument metre modifying inputs moving-coil meter non-linear normally obtained operational amplifier oscilloscope output reading output signal output voltage parameters phase-locked loop physical quantities pointer possible error potentiometer primary transducer random errors relationship resistance thermometers resistor scale sensitivity drift shown in Figure signal processing strain gauge suitable systematic errors techniques temperature thermocouple torque tube typical unknown variable voltage wattmeters Wheatstone bridge zero drift