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22 relations: Alternating current, Carbon microphone, Commander (Royal Navy), Echo sounding, Electronic oscillator, Harmonic oscillator, Hydrophone, List of Reginald Fessenden patents, Morse code, Piezoelectricity, Project MUSE, Raytheon, Reginald Fessenden, RMS Titanic, Royal Navy, Speaker driver, Submarine, Transducer, Underwater acoustic communication, Underwater acoustics, Voice coil, World War I.
Alternating current
Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.
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Carbon microphone
The carbon microphone, also known as carbon button microphone, button microphone, or carbon transmitter, is a type of microphone, a transducer that converts sound to an electrical audio signal.
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Commander (Royal Navy)
Commander (often abbreviated Cdr) is a senior officer rank of the Royal Navy of the United Kingdom.
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Echo sounding
Echo sounding is a type of sonar used to determine the depth of water by transmitting sound pulses into water.
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Electronic oscillator
An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave.
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Harmonic oscillator
In classical mechanics, a harmonic oscillator is a system that, when displaced from its equilibrium position, experiences a restoring force, F, proportional to the displacement, x: where k is a positive constant.
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Hydrophone
A hydrophone (Ancient Greek ὕδωρ.
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List of Reginald Fessenden patents
The list of Reginald Fessenden patents contains the innovation of his pioneering experiments.
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Morse code
Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.
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Piezoelectricity
Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress.
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Project MUSE
Project MUSE, a non-profit collaboration between libraries and publishers, is an online database of peer-reviewed academic journals and electronic books.
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Raytheon
The Raytheon Company is a major U.S. defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics.
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Reginald Fessenden
Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian-born inventor, who did a majority of his work in the United States and also claimed U.S. citizenship through his American-born father.
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RMS Titanic
RMS Titanic was a British passenger liner that sank in the North Atlantic Ocean in the early hours of 15 April 1912, after colliding with an iceberg during its maiden voyage from Southampton to New York City.
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Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force.
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Speaker driver
A speaker driver is an individual loudspeaker transducer that converts an electrical audio signal to sound waves.
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Submarine
A submarine (or simply sub) is a watercraft capable of independent operation underwater.
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Transducer
A transducer is a device that converts energy from one form to another.
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Underwater acoustic communication
Underwater acoustic communication is a technique of sending and receiving messages below water.
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Underwater acoustics
Underwater acoustics is the study of the propagation of sound in water and the interaction of the mechanical waves that constitute sound with the water and its boundaries.
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Voice coil
A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone.
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World War I
World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.
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References
[1] https://en.wikipedia.org/wiki/Fessenden_oscillator
