transducer
device that converts a signal in one form to another form
pickup
transducer that captures or senses mechanical vibrations produced by musical instruments
measuring transducer
device used in measurement, which provides an output quantity with a fixed relation to the input quantity
solar cell
electrical device that converts the energy of light directly into electricity by the photovoltaic effect
ultrasonic transducer
acoustic sensor
magnetic head
part of the devices used for reading/writing information from/to magnetic media
racon
transmitter-receiver associated with a fixed navigational mark
speaker driver
individual loudspeaker transducer that converts an electrical audio signal to sound waves
optical module
optical transceiver used in high-bandwidth data communications applications
laser diode
semiconductor laser
actuator
component of a machine that is responsible for moving and controlling a mechanism or system
instrument transformer
device used to isolate or transform voltage or current levels
variable reluctance sensor
transducer that measures changes in magnetic reluctance, which, When combined with basic electronic circuitry, detects the change in presence or proximity of ferrous objects
sound transducer
device that converts a signal between sound and another form
erase head
magnetic head for irreversible erasure of information
finite-state transducer
finite-state machine with two tapes (input, output)
exciter
type of electroacoustic transducer
Hall effect sensor
devices that measure magnetic field strength; used to detect the Hall effect
photodiode
type of photodetector based on a p–n junction
potentiometer
three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider
phototransistor
transistor that is photosensitive
Fessenden oscillator
underwater sound projector
amateur radio repeater
a combined receiver and transmitter that retransmits signals, extending their range
trigger
electronic transducer that can be attached to a drum, cymbal or other instrument to enable it to control an electronic drum unit or similar device
Interdigital transducer
or interdigitated transducer, a sensor and transmitter for a surface acoustic wave
soundbox
part of a mechanical gramophone that couples the needle to the horn