Page 98 - Concise Encyclopedia of Robotics
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Dynamic Transducer
Diaphragm
Coil
Magnet
waves
Signal Acoustic
Dynamic transducer
If an audio signal is applied to the coil of wire, it creates a magnetic
field that produces forces on the permanent magnet. This causes the
magnet to move, pushing the diaphragm back and forth. This displaces
the air near the diaphragm,producing acoustic waves that follow the wave-
form of the signal.
Dynamic transducers are commonly used in robotic speech recognition
and speech synthesis systems. Compare ELECTROSTATIC TRANSDUCER and PIEZOELEC-
TRIC TRANSDUCER.
See also SPEECH RECOGNITION and SPEECH SYNTHESIS.
