Rotary Motion IP & NEMA, Displacement Transducers Quiz
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Questions and Answers

What is the main advantage of using an LVDT over a potentiometer for displacement sensing?

  • LVDTs are less sensitive to electromagnetic fields and noise (correct)
  • Potentiometers have a higher resolution
  • LVDTs have a lower cost
  • Potentiometers have a simpler setup

    • What is the relationship between the voltages induced in the two secondary coils of an LVDT when the core is centered?

  • The voltages are unequal in magnitude and in phase
  • The voltages are unequal in magnitude and 180 degrees out of phase
  • The voltages are equal in magnitude and 180 degrees out of phase (correct)
  • The voltages are equal in magnitude and in phase

    • What is the primary reason for the linear characteristics of an LVDT?

  • The secondary coils are connected in series-opposition (correct)
  • The secondary coils have the same number of turns
  • The primary coil is energized with a constant AC voltage
  • The core is centered within the coils

    • Which of the following is a disadvantage of using a potentiometer for displacement sensing?

    <p>All of the above</p> Signup and view all the answers

    How does the output voltage of an LVDT change when the core is displaced from the center position?

    <p>The output voltage increases linearly with displacement</p> Signup and view all the answers

    Which of the following is a key advantage of using an LVDT over a potentiometer for displacement sensing?

    <p>LVDTs are less prone to wear and misalignment</p> Signup and view all the answers

    What is the primary purpose of the series-opposed connection of the secondary coils in an LVDT?

    <p>To provide a linear output voltage</p> Signup and view all the answers

    Which of the following is a key disadvantage of using a potentiometer for speed transduction?

    <p>Potentiometers are susceptible to wear and tear</p> Signup and view all the answers

    How does the LVDT achieve high accuracy compared to a potentiometer?

    <p>LVDTs have a more linear output</p> Signup and view all the answers

    What is the primary reason an LVDT requires signal conditioning?

    <p>To filter out electromagnetic interference</p> Signup and view all the answers

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