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Introduction to Measurements for Mechanical Engineers - Home Introduction to Measurements for Mechanical Engineers - Home
  • Mechanical Engineering Metrology and Measurements (MEMM)

Theory of experiments and measurements

  • Engineering Example: Uncertainty Analysis in Mechanical Measurements
  • Standardization
  • Laboratory Notebook
  • Uncertainty 101
  • Uncertainty in simple terms from IAEA
  • Short summary of the ``Measurement good practice guide ‘’ by NPL
  • Simple example of mechanical measurement with uncertainty analysis
  • Using AI tools to learn uncertainty
  • How to estimate the uncertainty of a slope for static calibration or regression
  • General measurement system diagram
  • Significant digits
  • Propagating uncertainty using Monte-Carlo simulations

Statistics for measurements

  • Very basic review of some statistics terms
  • Probability Distributions and the Central Limit Theorem
  • Lecture 5 - probability and statistics
  • Lecture 6
  • Outliers

Calibration

  • Sensitivity estimate example
  • Micrometer calibration using gage block
  • Calibration and uncertainty analysis - virtual experiment
  • Calibration of non-linear (logarithmic) function
  • Hysteresis and regression analysis example

Analog to digital (A/D) and D/A

  • Mimic A/D conversion
  • Analog to digital (A/D) and Digital to Analog (d/A) conversion example
  • Sampling, clipping and aliasing
  • Digital to Analog conversion using sinc

Signal processing

  • Digitizing the signal using pure Python
  • Using FFT the right way to find the correct spectrum
  • Fourier transforms
  • Symbolic evaluation of Fourier coefficients
  • Using FFT-based filter to reduce noise
  • FFT demo of a real, periodic signal

Dynamic signals

  • Log decrement method
  • 1st order dynamic system
  • Example of pre-measurement design
  • Step responses of dynamical systems
  • Plot power spectrum of experimental data
  • Spectrum example
  • Fast Fourier Transform (FFT) of a sum of two sine signals
  • Lab Worksheet: Measurement of Unknown Mass using Vibrating Beam
  • Repository
  • Open issue

Index

By Alex Liberzon

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