Transducer

transducerstransductiontransducedriveracoustic transducersangle transducerdetectionsensors for detectiontransducedtransduces
A transducer is a device that converts energy from one form to another.wikipedia
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Signal

signalselectrical signalsignaling
Usually a transducer converts a signal in one form of energy to a signal in another.
In human engineering, signals are typically provided by a sensor, and often the original form of a signal is converted to another form of energy using a transducer.

Loudspeaker

loudspeakersspeakerspeakers
A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; a device which converts an electrical audio signal into a corresponding sound.

Sensor

sensorsdetectorsensing
Consequently, a characteristic physical parameter varies and this variation is reported by means of an integrated transducer that generates the output signal.

Audio signal

audioaudio channelchannel
Audio signals may be synthesized directly, or may originate at a transducer such as a microphone, musical instrument pickup, phonograph cartridge, or tape head.

Energy transformation

energy conversionconversionconverts
A transducer is a device that converts energy from one form to another.

Magnetic cartridge

moving coilneedlephono cartridge
A magnetic cartridge, more commonly called a phonograph cartridge or phono cartridge or (colloquially) a pickup, is an electromechanical transducer that is used to play records on a turntable.

Actuator

actuatorsactuatedactuation
In electronic engineering, actuators are a subdivision of transducers.

Tape head

erase headplayback headhead
A tape head is a type of transducer used in tape recorders to convert electrical signals to magnetic fluctuations and vice versa.

Energy

energy transferenergiestotal energy
The process of converting one form of energy to another is known as transduction.
Items that transform between these forms are called transducers.

Load cell

Force transducersweight
A load cell is a type of transducer, specifically a force transducer.

String potentiometer

string pots
A string potentiometer is a transducer used to detect and measure linear position and velocity using a flexible cable and spring-loaded spool.

Headphones

headphoneearphoneearphones
They are electroacoustic transducers, which convert an electrical signal to a corresponding sound.

Potentiometer

rheostatpotentiometersvariable resistor
Potentiometers operated by a mechanism can be used as position transducers, for example, in a joystick.

Pressure sensor

pressure transducerpressure sensorspressure
A pressure sensor usually acts as a transducer; it generates a signal as a function of the pressure imposed.

Microphone

microphonescondenser microphonedynamic microphone
A microphone, colloquially named mic or mike, is a device – a transducer – that converts sound into an electrical signal.

Pickup (music technology)

pickuppickupsguitar pickup
A pickup is a transducer that captures or senses mechanical vibrations produced by musical instruments, particularly stringed instruments such as the electric guitar, and converts these to an electrical signal that is amplified using an instrument amplifier to produce musical sounds through a loudspeaker in a speaker enclosure.

Vibration-powered generator

vibrationVibration powered generator
Vibration powered generators usually consist of a resonator which is used to amplify the vibration source, and a transducer mechanism which converts the energy from the vibrations into electrical energy.

Phonograph

turntablesgramophoneturntable
In later electric phonographs (more often known since the 1940s as record players or, most recently, turntables ), the motions of the stylus are converted into an analogous electrical signal by a transducer, then converted back into sound by a loudspeaker.

Ultrasonic transducer

ultrasonic sensorultrasonicultrasonic sensors
In a similar way to radar and sonar, ultrasonic transducers are used in systems which evaluate targets by interpreting the reflected signals.

Piezoelectricity

piezoelectricpiezoelectric effectpiezo-electric
The detector consisted of a transducer, made of thin quartz crystals carefully glued between two steel plates, and a hydrophone to detect the returned echo.

Ultrasound

ultrasonicultrasonicsultrasounds
The piezoelectric effect, discovered by Jacques and Pierre Curie in 1880, was useful in transducers to generate and detect ultrasonic waves in air and water.

Disk read-and-write head

headheadsread/write head
Seagate introduced TMR heads featuring integrated microscopic heater coils to control the shape of the transducer region of the head during operation.

Hydrophone

hydrophoneshydrophobicunderwater microphone
A small single cylindrical ceramic transducer can achieve near perfect omnidirectional reception.

Horn analyzer

A horn analyzer is an test instrument dedicated to determine the resonance and anti-resonance frequencies of ultrasonic parts such as transducers, converters, horns/sonotrodes and acoustic stacks, which are used for ultrasonic welding, cutting, cleaning, medical and industrial applications.

Radio receiver

receiverreceiversRadios
The modulation signal output by the demodulator is usually amplified to increase its strength, then the information is converted back to a human-usable form by some type of transducer.