Biju Patnaik University of Technology, Odisha, Mechanical Engineering Semester 4, Mechanical Measurement, Metrology & Reliability Syllabus

Mechanical Measurement, Metrology & Reliability

MODULE – I 
Definition and methods of measurement, classification of measuring instruments, Measuring systems, performance characteristics of measuring devices, types of errors. Functional elements of measuring system.
Static and Dynamic Characteristics of Instruments: Static Performance Parameters, Impedance Loading and Matching, Selection and Specifications ofInstruments, Dynamic Response, Compensation.

MODULE - II 
Transducer Elements: Analog Transducers, Digital Transducers, Basic detector transducer elements: Electrical transducer, Sliding Contract devices, Variable-inductance transducer elements, the differential transformer, Variable-reluctance transducers, Capacitive transducers. The piezoelectric effect, photo-electric transducer, electronic transducer element. Intermediate Elements: Amplifier, Operational Amplifier, Differential and Integrating Elements, Filters, A-D and D-A Converters.
Strain Measurement: The electrical resistance strain gauge. The metallic resistance strain gauge, Selection and installation factors for metallic strain gauge, Circuitry, metallic strain gauge. The strain gauge ballast circuit, the staring gauge bridge circuit, Temperature compensation.

MODULE - III
Measurement of Pressure: Pressure measurement systems, Pressure measurement transducers, Elastic diaphragms, strain gauge pressure cells, measurement of high pressure, Measurement of low pressures, dynamic characteristics of pressure measuring systems. Measurement of Fluid Flow, Flow characteristics obstruction meters, Obstruction meter for compressible fluids- Orifice, Venturimeter and Pitot tube, The variable-area meter, Turbine Flow meters.
Temperature Measurement: Use of bimetals pressure thermometers, Thermocouples, Pyrometry, Calibration of temperature measuring devices. Force, Power, Speed and Torque Measurement : Load Cell, Dynamometers, Tachometer and Tacho-generator, Stroboscope, The seismic instrument.- Vibrometers and accelerometers.

MODULE – IV
Principles of Measurements: Line and End & optical Standards, Calibration, accuracy and Precision, Random error and systemic error. Measurement of Surface Roughness, Screw Thread and Gears. Measurement of straightness, Flatness and circularity.
Limits, Fits and Gauges, Assembly by full, partial and group interchangeability, geometric tolerances.

MODULE – V 
Definition, bath-tub-curve, system reliability, reliability improvement, maintainability and availability. Availability of single repairable system using Markov model, Life tests, acceptance sampling plan based on life tests, Sequential acceptance sampling plan based on MTTF & MTBF.