B.Tech Mechanical Engineering

 

ME 323                         Mechanical Measurements                    3-0-0-6

 

Syllabus: Fundamentals of measurement: elements  of  a  generalized  measurement  system,  standards,  and  types of signals; Static  performance characteristics.  Dynamic  performance,  instrument types - zero,  first and second order  instruments, transfer  function  representation,  system  response to standard input signals - step, ramp, impulse, and frequency response; Treatment of uncertainties: error classification, systematic and random errors, statistical analysis of data, propagation  and  expression  of  uncertainties;  Measurement  of  various  physical  quantities:  linear  and  angular  displacement,  velocity,  force,  torque,  strain,  pressure,  flow  rate  and  temperature;  Transfer  functions  of  some  standard  measuring  devices;  Data  acquisition  and processing:  digital  methods,  digitization,  signal  conditioning,  interfacing,  standard  methods of  data  analysis - quantities  obtainable  from  time  series;  Fourier  spectra,  DFT,  FFT;  Data  acquisition  parameters - sampling  rate,  Nyquist  sampling  frequency,  aliasing  &  leakage  errors; Metrology: measurement of angles, threads, surface finish, inspection of straightness,  flatness and alignment, gear testing, digital readouts, coordinate measuring machine.

 

Texts:

  1. O. Doebelin, Measurement Systems-Applications and Design, 4th Edition, Tata McGraw-Hill, 1990.
  2. G. Beckwith, R. D. Marangoni and J. H. Lienhard, Mechanical Measurements, Addison Wesley, 1993.

 

References:

  1. S. Figiola and D. E. Beasley, Theory and Design for Mechanical Measurements, 2nd Edition, John Wiley, 1995.
  2. W. Dally, W. F. Riley and K. G. McConnell, Instrumentation for Engineering Measurements, 2nd Edition, John Wiley & Sons, 1993.
  3. O. Doebelin, Engineering Experimentation, McGraw-Hill, 1995.
  4. L. Dotson, Fundamentals of Dimensional Metrology, Cengage Learning, 2015.