This module aims to apply the methods of mathematical modelling to the identification of the performance characteristics of number of measurement devices. Different transducers and the mathematical models underlying their behaviour and performance as well as how they are interfaced to a computer based system will be assessed. Data acquisition will be covered through laboratory sessions.
Measurement Devices: Resistive Based Devices/ strain gauges. Piezo Electric based Devices. Temperature measurement. Vibration measurement. Potentiometers.
Error Analysis: Static Characteristics. Accuracy, Precision, Bias and Sensitivity. . Linearity. Scale, Span. Modifying and interfering inputs. Static and dynamic loading effects and 2-port networks.
Instrument Calibration: Process instrument calibration, standards laboratories.
Dynamic performance of measurement systems: System modeling and Block diagrams, differential equations, Laplace transforms, transfer functions of linear systems, poles and zeros of the transfer function. Transient, steady state and frequency response of 1st and 2nd order systems
Measurement Systems: Signal conditioning, Bridge circuit design and performance, Operational Amplifier circuits. Filters. Data acquisition components. Analog to Digital Conversion. Digital to Analog Conversion. Shielding Grounding. Frequency Measurement and Timing Control.
