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Goldschmidt alternator, the Glossary

The Goldschmidt alternator or reflector alternator, invented in 1908 by German engineer Rudolph Goldschmidt, was a rotating machine which generated radio frequency alternating current and was used as a radio transmitter.^[1]

62 relations: Alexander Meissner, Alexanderson alternator, Alternating current, Alternator, Antenna (radio), Arc converter, Armature (electrical), Armistice of 11 November 1918, Audio signal, Continuous wave, Damping, Edwin Howard Armstrong, Electric generator, Electronic oscillator, Elihu Thomson, Ernst Alexanderson, Frederick Thomas Trouton, Frequency, Frequency multiplier, Gear train, General Electric, Georg von Arco, Harmonic, Joseph Bethenod, LC circuit, Leakage inductance, Lee de Forest, Linear circuit, Loading coil, Longwave, Low frequency, Magnet, Magnetic amplifier, Magnetic hysteresis, Modulation, Morse code, Nauen Transmitter Station, Nikola Tesla, Nonlinear system, Radio broadcasting, Radio frequency, Radio wave, RCA, Reginald Fessenden, Resonance, Rotor (electric), Rudolf Goldschmidt, Saturation (magnetic), Sine wave, Spark-gap transmitter, ... Expand index (12 more) »
1908 in Germany
1908 in science
Alternators

Alexander Meissner

Alexander Meissner (September 14, 1883 – January 3, 1958) was an Austrian engineer and physicist.

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Alexanderson alternator

An Alexanderson alternator is a rotating machine, developed by Ernst Alexanderson beginning in 1904, for the generation of high-frequency alternating current for use as a radio transmitter. Goldschmidt alternator and Alexanderson alternator are alternators.

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Alternating current

Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direction.

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Alternator

An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. Goldschmidt alternator and alternator are alternators.

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Antenna (radio)

In radio engineering, an antenna (American English) or aerial (British English) is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.

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Arc converter

The arc converter, sometimes called the arc transmitter, or Poulsen arc after Danish engineer Valdemar Poulsen who invented it in 1903, was a variety of spark transmitter used in early wireless telegraphy.

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Armature (electrical)

In electrical engineering, the armature is the winding (or set of windings) of an electric machine which carries alternating current.

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Armistice of 11 November 1918

The Armistice of 11 November 1918 was the armistice signed at Le Francport near Compiègne that ended fighting on land, at sea, and in the air in World War I between the Entente and their last remaining opponent, Germany.

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Audio signal

An audio signal is a representation of sound, typically using either a changing level of electrical voltage for analog signals, or a series of binary numbers for digital signals.

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Continuous wave

A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency, typically a sine wave, that for mathematical analysis is considered to be of infinite duration.

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Damping

In physical systems, damping is the loss of energy of an oscillating system by dissipation.

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Edwin Howard Armstrong

Edwin Howard Armstrong (December 18, 1890 – February 1, 1954) was an American electrical engineer and inventor, who developed FM (frequency modulation) radio and the superheterodyne receiver system.

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Electric generator

In electricity generation, a generator is a device that converts motion-based power (potential and kinetic energy) or fuel-based power (chemical energy) into electric power for use in an external circuit.

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Electronic oscillator

An electronic oscillator is an electronic circuit that produces a periodic, oscillating or alternating current (AC) signal, usually a sine wave, square wave or a triangle wave, powered by a direct current (DC) source.

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Elihu Thomson

Elihu Thomson (March 29, 1853 – March 13, 1937) was an English-American engineer and inventor who was instrumental in the founding of major electrical companies in the United States, the United Kingdom and France.

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Ernst Alexanderson

Ernst Frederick Werner Alexanderson (January 25, 1878 – May 14, 1975) was a Swedish-American electrical engineer, who was a pioneer in radio and television development.

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Frederick Thomas Trouton

Frederick Thomas Trouton FRS (24 November 1863 – 21 September 1922) was an Irish physicist known for Trouton's rule and experiments to detect the Earth's motion through the luminiferous aether.

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Frequency

Frequency (symbol f), most often measured in hertz (symbol: Hz), is the number of occurrences of a repeating event per unit of time.

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Frequency multiplier

In electronics, a frequency multiplier is an electronic circuit that generates an output signal and that output frequency is a harmonic (multiple) of its input frequency.

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Gear train

A gear train or gear set is a machine element of a mechanical system formed by mounting two or more gears on a frame such that the teeth of the gears engage.

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General Electric

General Electric Company (GE) was an American multinational conglomerate founded in 1892, incorporated in the state of New York and headquartered in Boston.

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Georg von Arco

Georg Wilhelm Alexander Hans Graf von Arco (30 August 1869 in Großgorschütz – 5 May 1940 in Berlin) was a German physicist, radio pioneer, and one of the joint founders of the "Society for Wireless Telegraphy" which became the Telefunken company.

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Harmonic

In physics, acoustics, and telecommunications, a harmonic is a sinusoidal wave with a frequency that is a positive integer multiple of the fundamental frequency of a periodic signal.

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Joseph Bethenod

Joseph Bethenod (27 April 1883 – 21 February 1944) was a French electrical engineer and inventor best known for his inventions in the field of radio transmission, but interested in a wide variety of topics including electric motors and automobile technology.

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LC circuit

An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together.

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Leakage inductance

Leakage inductance derives from the electrical property of an imperfectly coupled transformer whereby each winding behaves as a self-inductance in series with the winding's respective ohmic resistance constant.

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Lee de Forest

Lee de Forest (August 26, 1873 – June 30, 1961) was an American inventor, electrical engineer and an early pioneer in electronics of fundamental importance.

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Linear circuit

A linear circuit is an electronic circuit which obeys the superposition principle.

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Loading coil

A loading coil or load coil is an inductor that is inserted into an electronic circuit to increase its inductance.

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Longwave

In radio, longwave, long wave or long-wave, and commonly abbreviated LW, refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band.

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Low frequency

Low frequency (LF) is the ITU designation for radio frequencies (RF) in the range of 30–300 kHz.

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Magnet

A magnet is a material or object that produces a magnetic field.

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Magnetic amplifier

The magnetic amplifier (colloquially known as a "mag amp") is an electromagnetic device for amplifying electrical signals.

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Magnetic hysteresis

Magnetic hysteresis occurs when an external magnetic field is applied to a ferromagnet such as iron and the atomic dipoles align themselves with it.

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Modulation

In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted.

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Morse code

Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs.

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Nauen Transmitter Station

Nauen Transmitter Station (German: Grossfunkstelle Nauen or Sender Nauen) in Nauen, Havelland district, Brandenburg, Germany, is the oldest continuously operating radio transmitting installation in the world.

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Nikola Tesla

Nikola Tesla (. Random House Webster's Unabridged Dictionary.,; 1856 – 7 January 1943) was a Serbian-American engineer, futurist, and inventor.

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Nonlinear system

In mathematics and science, a nonlinear system (or a non-linear system) is a system in which the change of the output is not proportional to the change of the input.

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Radio broadcasting

Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience.

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Radio frequency

Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around.

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Radio wave

Radio waves are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths greater than, about the diameter of a grain of rice.

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RCA

The RCA Corporation was a major American electronics company, which was founded in 1919 as the Radio Corporation of America.

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Reginald Fessenden

Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian-born American inventor who received hundreds of patents in various fields, most notably ones related to radio and sonar.

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Resonance

In physics, resonance refers to a wide class of phenomena that arise as a result of matching temporal or spatial periods of oscillatory objects.

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Rotor (electric)

The rotor is a moving component of an electromagnetic system in the electric motor, electric generator, or alternator.

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Rudolf Goldschmidt

Rudolf Goldschmidt (1876–1950) was a German engineer and inventor, best known for the development of the Goldschmidt alternator radio transmitter, and the tone wheel receiver.

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Saturation (magnetic)

Seen in some magnetic materials, saturation is the state reached when an increase in applied external magnetic field H cannot increase the magnetization of the material further, so the total magnetic flux density B more or less levels off.

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Sine wave

A sine wave, sinusoidal wave, or sinusoid (symbol: ∿) is a periodic wave whose waveform (shape) is the trigonometric sine function.

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Spark-gap transmitter

A spark-gap transmitter is an obsolete type of radio transmitter which generates radio waves by means of an electric spark.

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Stator

The stator is the stationary part of a rotary system, found in electric generators, electric motors, sirens, mud motors, or biological rotors (such as bacterial flagella or ATP synthase).

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Submarine communications cable

A submarine communications cable is a cable laid on the seabed between land-based stations to carry telecommunication signals across stretches of ocean and sea.

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Telegraphy

Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message.

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Transformer

In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.

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Transmitter

In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna with the purpose of signal transmission up to a radio receiver.

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Triode

A triode is an electronic amplifying vacuum tube (or thermionic valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (anode).

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Vacuum tube

A vacuum tube, electron tube, valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.

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Very low frequency

Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km, respectively.

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Wilhelm II

Wilhelm II (Friedrich Wilhelm Viktor Albert; 27 January 18594 June 1941) was the last German Emperor and King of Prussia from 1888 until his abdication in 1918, which marked the end of the German Empire as well as the Hohenzollern dynasty's 300-year rule of Prussia.

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References

[1] https://en.wikipedia.org/wiki/Goldschmidt_alternator

, Stator, Submarine communications cable, Telegraphy, Transformer, Transmitter, Triode, Vacuum tube, Very low frequency, Wilhelm II, Wireless telegraphy, Woodrow Wilson, World War I.

Goldschmidt alternator, the Glossary

Table of Contents

See also

1908 in Germany

1908 in science

Alternators

References