The coupling mechanism in a resolver can best be described as what term?

The coupling mechanism in a resolver is best described as a phase shift. Resolvers operate based on the principle of electromagnetic induction, where the position of a rotor within a stator induces an electric signal. This signal varies in both magnitude and phase as the rotor turns, which creates a phase relationship between the input voltage and the output signal. The specific phase angle indicates the position of the rotor, allowing for precise angular measurements. This phase shift is crucial for determining the directional information in various applications, such as robotics and aerospace systems, where precise control is needed.

Understanding the role of phase shift helps in grasping how resolvers translate mechanical positions into electrical signals, emphasizing their functionality in applications that require high accuracy and reliability in position sensing.