Vibration Measurement (116/117)

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Chapter Outline

Chapter 8 - Vibration Measurement (Fundamentals of Vibration for Test and Design Applications)

  • Characteristics of an Ideal Transducer
  • Velocity Sensing
  • Measuring Displacement
    • Optical Wedge—Estimating Displacement due to Vibration
    • Displacement Sensor
  • Strain Measurement
    • Problems with Strain Gages
    • Wheatstone Bridge
    • Four Sensing Resistors in a Wheatstone Bridge
    • Increased Sensitivity for Force Sensing 
    • Strain Gage Compensation
  • Silicon Semiconductor Transducers
    • Compound Two-stage Transducer
  • Variable Capacitance Sensors
  • Measuring Vibration Displacement or Velocity
    • Velocity Sensors (Pickups)
  • Accelerometers
    • Wire Strain Gage Accelerometer
    • Piezoresistive (PR) Accelerometers
    • Piezoelectric Transduction
    • Glue Mounting Method
    • Mounting Variations
    • Cable Noise
  • Signal Conditioning Approaches
  • Voltage Measurement: Charge Mode Sensors
    • “Charge” Amplifiers
    • T-Insert Calibration
    • Internal Electronic Systems
  • Sensor Response 
    • Contamination
    • Mounting Adaptors, Studs, Tape
    • Cable Management
  • Calibration
  • Selecting a Measurement System
  • MEMS Devices
    • Choosing an appropriate technology

Video Outline

Vibration Measurement (ver. 116-117)