What is an application of an analog electromagnetic transducer such as a resolver?

An analog electromagnetic transducer like a resolver is primarily used for position and velocity feedback in various systems. Resolvers convert angular position or motion into an electrical signal, making them ideal for applications that require precise measurements of position and speed. This makes them invaluable in fields such as robotics, aerospace, and industrial automation, where knowing the exact position and speed of a component is critical for the system's operation and control.

Resolvers generate two sinusoidal signals that are phase-shifted, allowing for the determination of the precise angular position by assessing the phase difference between the signals. This capability provides accurate feedback for controlling the movement of motors and other mechanisms, ensuring that equipment operates efficiently and responsively according to the desired parameters.

In contrast, applications like audio signal processing, data storage, and thermal regulation do not leverage the specific capabilities of resolvers, highlighting why position and velocity feedback is the correct context for their use.