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61 relations: Absolute value, Alternating current, Amplitude, Amplitude modulation, Angular frequency, Astronomy, Audio system measurements, Cognitive neuroscience of music, Crest and trough, Crest factor, DC bias, Decibel, Direct current, Displacement (vector), Doppler spectroscopy, Electric current, Electric field, Electric power, Electrical engineering, Electromagnetic radiation, Exoplanet, Field strength, Frequency, Frequency modulation, Function (mathematics), Ground (electricity), Infinity, Logarithm, Loudness, Loudspeaker, Maxima and minima, Mean, Microprocessor, Oscilloscope, Particle displacement, Periodic function, Phase (waves), Phasor, Photon, Power (physics), Pulse (signal processing), Radial velocity, Radio frequency, Root mean square, Sampling (signal processing), Sine wave, Sound intensity, Square root, Square wave, String vibration, ..., Telecommunication, University of California, University of Wisconsin–Madison, Variable (mathematics), Voltage, Voltmeter, Water, Wave, Wave equation, Waveform, Wavelength. Expand index (11 more) »
Absolute value
In mathematics, the absolute value or modulus of a real number is the non-negative value of without regard to its sign.
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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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Amplitude
The amplitude of a periodic variable is a measure of its change over a single period (such as time or spatial period).
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Amplitude modulation
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave.
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Angular frequency
In physics, angular frequency ω (also referred to by the terms angular speed, radial frequency, circular frequency, orbital frequency, radian frequency, and pulsatance) is a scalar measure of rotation rate.
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Astronomy
Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.
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Audio system measurements
Audio system measurements are made for several purposes.
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Cognitive neuroscience of music
The cognitive neuroscience of music is the scientific study of brain-based mechanisms involved in the cognitive processes underlying music.
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Crest and trough
A crest is the point on a wave with the maximum value of upward displacement within a cycle.
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Crest factor
Crest factor is a parameter of a waveform, such as alternating current or sound, showing the ratio of peak values to the effective value.
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DC bias
When describing a periodic function in the time domain, the DC bias, DC component, DC offset, or DC coefficient is the mean amplitude of the waveform.
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Decibel
The decibel (symbol: dB) is a unit of measurement used to express the ratio of one value of a physical property to another on a logarithmic scale.
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Direct current
Direct current (DC) is the unidirectional flow of electric charge.
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Displacement (vector)
A displacement is a vector whose length is the shortest distance from the initial to the final position of a point P. It quantifies both the distance and direction of an imaginary motion along a straight line from the initial position to the final position of the point.
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Doppler spectroscopy
Doppler spectroscopy (also known as the radial-velocity method, or colloquially, the wobble method) is an indirect method for finding extrasolar planets and brown dwarfs from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.
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Electric current
An electric current is a flow of electric charge.
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Electric field
An electric field is a vector field surrounding an electric charge that exerts force on other charges, attracting or repelling them.
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Electric power
Electric power is the rate, per unit time, at which electrical energy is transferred by an electric circuit.
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Electrical engineering
Electrical engineering is a professional engineering discipline that generally deals with the study and application of electricity, electronics, and electromagnetism.
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Electromagnetic radiation
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
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Exoplanet
An exoplanet or extrasolar planet is a planet outside our solar system.
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Field strength
In physics, field strength means the magnitude of a vector-valued field (e.g., in volts per meter, V/m, for an electric field E).
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Frequency
Frequency is the number of occurrences of a repeating event per unit of time.
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Frequency modulation
In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave.
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Function (mathematics)
In mathematics, a function was originally the idealization of how a varying quantity depends on another quantity.
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Ground (electricity)
In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth.
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Infinity
Infinity (symbol) is a concept describing something without any bound or larger than any natural number.
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Logarithm
In mathematics, the logarithm is the inverse function to exponentiation.
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Loudness
In acoustics, loudness is the subjective perception of sound pressure.
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Loudspeaker
A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; which converts an electrical audio signal into a corresponding sound.
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Maxima and minima
In mathematical analysis, the maxima and minima (the respective plurals of maximum and minimum) of a function, known collectively as extrema (the plural of extremum), are the largest and smallest value of the function, either within a given range (the local or relative extrema) or on the entire domain of a function (the global or absolute extrema).
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Mean
In mathematics, mean has several different definitions depending on the context.
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Microprocessor
A microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit (IC), or at most a few integrated circuits.
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Oscilloscope
An oscilloscope, previously called an oscillograph, and informally known as a scope or o-scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscope), is a type of electronic test instrument that allows observation of varying signal voltages, usually as a two-dimensional plot of one or more signals as a function of time.
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Particle displacement
Particle displacement or displacement amplitude is a measurement of distance of the movement of a particle from its equilibrium position in a medium as it transmits a second wave.
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Periodic function
In mathematics, a periodic function is a function that repeats its values in regular intervals or periods.
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Phase (waves)
Phase is the position of a point in time (an instant) on a waveform cycle.
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Phasor
In physics and engineering, a phasor (a portmanteau of phase vector), is a complex number representing a sinusoidal function whose amplitude (A), angular frequency (ω), and initial phase (θ) are time-invariant.
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Photon
The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).
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Power (physics)
In physics, power is the rate of doing work, the amount of energy transferred per unit time.
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Pulse (signal processing)
A pulse in signal processing is a rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.
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Radial velocity
The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point.
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Radio frequency
Radio frequency (RF) refers to oscillatory change in voltage or current in a circuit, waveguide or transmission line in the range extending from around twenty thousand times per second to around three hundred billion times per second, roughly between the upper limit of audio and the lower limit of infrared.
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Root mean square
In statistics and its applications, the root mean square (abbreviated RMS or rms) is defined as the square root of the mean square (the arithmetic mean of the squares of a set of numbers).
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Sampling (signal processing)
In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal.
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Sine wave
A sine wave or sinusoid is a mathematical curve that describes a smooth periodic oscillation.
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Sound intensity
Sound intensity level also known as acoustic intensity is defined as the power carried by sound waves per unit area in a direction perpendicular to that area.
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Square root
In mathematics, a square root of a number a is a number y such that; in other words, a number y whose square (the result of multiplying the number by itself, or) is a. For example, 4 and −4 are square roots of 16 because.
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Square wave
A square wave is a non-sinusoidal periodic waveform in which the amplitude alternates at a steady frequency between fixed minimum and maximum values, with the same duration at minimum and maximum.
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String vibration
A vibration in a string is a wave.
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Telecommunication
Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or other electromagnetic systems.
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University of California
The University of California (UC) is a public university system in the US state of California.
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University of Wisconsin–Madison
The University of Wisconsin–Madison (also known as University of Wisconsin, Wisconsin, UW, or regionally as UW–Madison, or simply Madison) is a public research university in Madison, Wisconsin, United States.
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Variable (mathematics)
In elementary mathematics, a variable is a symbol, commonly an alphabetic character, that represents a number, called the value of the variable, which is either arbitrary, not fully specified, or unknown.
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Voltage
Voltage, electric potential difference, electric pressure or electric tension (formally denoted or, but more often simply as V or U, for instance in the context of Ohm's or Kirchhoff's circuit laws) is the difference in electric potential between two points.
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Voltmeter
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit.
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Water
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.
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Wave
In physics, a wave is a disturbance that transfers energy through matter or space, with little or no associated mass transport.
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Wave equation
The wave equation is an important second-order linear partial differential equation for the description of waves—as they occur in classical physics—such as mechanical waves (e.g. water waves, sound waves and seismic waves) or light waves.
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Waveform
A waveform is the shape and form of a signal such as a wave moving in a physical medium or an abstract representation.
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Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
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Amplitude (music), Amplitude (wave motion), Amplitudes, Peak amplitude, Peak to peak, Peak value, Peak-to-peak, Peak-to-peak amplitude, Pulse amplitude, RMS amplitude, Root mean square (RMS) amplitude, Root mean square amplitude, Root-mean-square amplitude, Semi-amplitude, True RMS voltmeter, Wave amplitude.
References
[1] https://en.wikipedia.org/wiki/Amplitude
