Devices that convert energy from one form to another are called what?

The term that accurately describes devices that convert energy from one form to another is "transducers." Transducers are crucial components in many medical devices, including those used in cardiographic technology. They function by taking one type of energy—such as sound, light, or thermal energy—and transforming it into another—such as electrical energy. For instance, in echocardiography, ultrasound transducers convert electrical signals into sound waves, which are then used to create images of the heart.

While "converters," "energizers," and "transformers" might seem relevant, they do not specifically encompass the full range of energy transformations that transducers perform. Converters typically refer to devices that change one type of electrical signal to another, while transformers are a specific type of device used mainly in electrical engineering to change voltage levels of alternating current. Energizers generally pertain to devices that add energy to a system or process but do not focus on the energy conversion aspect that transducers are designed for. Thus, transducers are the most precise term in this context.