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A '''transducer''' is a device that converts one form of [[energy]] into another, usually for the purpose of [[measurement|measuring]] or exchanging [[information]]. There are several varieties of transducers:
*Photoelectric transducers convert [[electricity|electrical]] energy to [[light]], or vice versa.
*[[Ultrasonic transducer]]s convert mechanical waves ([[sound]]) into electrical signals.
*Antennas convert radio waves to electrical signals.
*Electrochemical transducers convert chemical composition information to electrical signals.
[[Category: Science]]
*Photoelectric transducers convert [[electricity|electrical]] energy to [[light]], or vice versa.
*[[Ultrasonic transducer]]s convert mechanical waves ([[sound]]) into electrical signals.
*Antennas convert radio waves to electrical signals.
*Electrochemical transducers convert chemical composition information to electrical signals.
[[Category: Science]]