Podcast
Questions and Answers
What is the main advantage of using an LVDT over a potentiometer for displacement sensing?
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?
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?
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?
Which of the following is a disadvantage of using a potentiometer for displacement sensing?
How does the output voltage of an LVDT change when the core is displaced from the center position?
How does the output voltage of an LVDT change when the core is displaced from the center position?
Which of the following is a key advantage of using an LVDT over a potentiometer for displacement sensing?
Which of the following is a key advantage of using an LVDT over a potentiometer for displacement sensing?
What is the primary purpose of the series-opposed connection of the secondary coils in an LVDT?
What is the primary purpose of the series-opposed connection of the secondary coils in an LVDT?
Which of the following is a key disadvantage of using a potentiometer for speed transduction?
Which of the following is a key disadvantage of using a potentiometer for speed transduction?
How does the LVDT achieve high accuracy compared to a potentiometer?
How does the LVDT achieve high accuracy compared to a potentiometer?
What is the primary reason an LVDT requires signal conditioning?
What is the primary reason an LVDT requires signal conditioning?
