MEAS272 - Introduction to Torque Measurement

This is an introductory course in torque measurement that starts out from a slightly more advanced perspective. It precisely defines torque as a vector quantity, which is important for more precise measurements. After the precise definitions, the typical torque measurement devices are described, followed by a section on some of the uncertainties associated with a basic torque measurement.

The course outline is as follows:

• Introduction
• Introduction to Vectors
  • Definition and Representation
  • Adding and subtracting
  • The dot product
  • The cross product
• Introduction to the Derivative
• Definitions
  • Angular Velocity
  • Angular Acceleration
  • Angular Momentum
  • Torque
• Units and Conversion
• Methods of Applying a Known Torque
• Methods of Measuring a Torque
• Torque Instrumentation
  • The Torque Balance
  • Torque Transducers
  • Torque Wrenches
  • Torque Screwdrivers
  • Torque Testers
  • The Dynamometer
• Uncertainties in Torque Balance Measurement
  • Sources of Uncertainty
  • Calibration Standards Uncertainty
    • Lever Arm
    • Mass
    • The Gravitational Constant
    • Alignment
    • Balance at zero load
    • Other Uncertainties
  • Device Under Test (DUT) Uncertainties
    • Repeatability
    • Resolution
    • Hysteresis
    • Goodness of Fit
    • Creep and Creep Recovery
    • Other Uncertainties
• Summary

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