sensors

Shock and Vibration
Transducer Selection

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This course provides an introductory summary of IEST-RP-DTE011.1: Mechanical Shock and Vibration Transducer Selection. Different accelerometer types are introduced and discussed along with the advantages and disadvantages of each type. The effects of dynamic and environmental characteristics are discussed, as well as installation precautions and recalibration. Various measurement situations are described with their specific application considerations.


Course outline     Who should attend?     Course materials     Instructor


Course outline
  • Terms and definitions
  • Transducer types for shock and vibration
    1. Piezoelectric (high impedance, charge mode)
    2. Integral Electronic Piezelectric (IEPE)
    3. Piezoresistive (PR)
    4. Variable Capacitance (VC)
    5. Servo
    6. Smart sensors (IEEE P1451.4)
  • Dynamic characteristic
    1. Sensitivity
    2. Dynamic range
    3. Amplitude-frequency response and resonance
    4. Phase-frequency response
    5. Amplitude nonlinearity
    6. Transverse sensitivity
    7. Mass and size
  • Environmental characteristics
    1. Temperature
    2. Thermal transient sensitivity
    3. Base strain sensitivity
    4. Electromagnetic sensitivity
    5. Radiation sensitivity
    6. Humidity
    7. Vacuum
    8. Grounding and electrical isolation
    9. Placebo noise monitoring channel
  • Transducer installation
    1. Surface preparation
    2. Stud mounting
    3. Adhesive mounting
    4. Magnetic mounting
    5. Triaxel mounting block
    6. Isolation adapters
    7. Location
  • Transducer recalibration
  • Transducer selection by application
Who should attend?

I need to gain an understanding of accelerometers because:
  • I am tasked with selecting accelerometers
  • I install accelerometers
Course materials
  • Copy of IEST-RP-DTE011.1: Mechanical Shock and Vibration Transducer Selection
  • Copy of PowerPoint presentation in course binder
  • Certificate of attendance for completion of CEUs
The purpose of Recommended Practice (RP), IEST-RP-DTE011.1, is to provide guidelines for selecting transducers to measure shock and vibration in laboratory and field testing environments. Some special applications are not covered because of their unique nature and the rapid advancements taking place in their disciplines. These include a variety of biodynamic and biomechanical tests. However, even in those applications not specifically addressed, these recommendations may be helpful.

Continuing Education Units: .6 CEUs

Instructor

Jon Wilson, instructor, iest  Jon Wilson