General Studies · Mechatronics and Robotics
In a high-precision robotic joint control system, a resolver is used instead of an optical encoder for angular position sensing. Which of the following statements most accurately explains why a resolver is preferred in such mechatronic applications?
- 1A resolver, being an electromagnetic transducer, offers absolute analog signals (sine and cosine voltages) that are immune to dust, vibration, and temperature variations, ensuring robust operation in harsh industrial environments.✓
- 2A resolver operates on the Hall-effect principle, providing higher linearity and faster response than optical encoders.
- 3A resolver measures only speed and not angular position, making it more suitable for dynamic control applications rather than positioning systems.
- 4A resolver provides digital output signals directly proportional to angular displacement, making it simpler to interface with microcontrollers without signal conditioning.
Correct answer
A resolver, being an electromagnetic transducer, offers absolute analog signals (sine and cosine voltages) that are immune to dust, vibration, and temperature variations, ensuring robust operation in harsh industrial environments.
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