What is the term for the angular position in the rotor that corresponds to maximum coupling in a resolver?

The term for the angular position in the rotor that corresponds to maximum coupling in a resolver is phase shift. This concept is crucial in understanding how a resolver functions, as it refers to the specific angle at which the relationship between the rotor and stator windings achieves optimal magnetic coupling. At this position, the electrical output from the resolver is maximized, allowing for accurate determination of the rotor's angular position.

In a resolver, when the rotor aligns with the stator at the phase shift, the induced voltages reach their peak values, providing clear and precise information about the angular displacement. This is essential in applications like servo control, where knowing the exact position contributes to the accuracy and performance of devices.

The other terms provided, such as sensitivity, resolution, and composition, relate to different aspects of signal processing and measurement but do not specifically define the position in the rotor that achieves maximum coupling. Sensitivity refers to the responsiveness of the device to inputs, resolution relates to the smallest distinguishable change in position, and composition deals with the combination of multiple signals or waves, none of which directly describe the concept of angular position in the context of resolvers.