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单词 equalizer
释义

equalizer


e·qual·iz·er

E0187400 (ē′kwə-lī′zər)n.1. One that equalizes, as:a. A device for equalizing pressure or strain.b. A tone control system designed to compensate for frequency distortion in audio systems.2. Slang A deadly weapon, such as a firearm or switchblade.

equalizer

(ˈiːkwəˌlaɪzə) or

equaliser

n1. a person or thing that equalizes, esp a device to counterbalance opposing forces2. (Electrical Engineering) an electronic network introduced into a transmission circuit to alter its response, esp to reduce distortion by equalizing its response over a specified frequency range3. (Team Sports, other than specified) sport a goal, point, etc, that levels the score4. slang US a weapon, esp a gun

e•qual•iz•er

(ˈi kwəˌlaɪ zər)

n. 1. a person or thing that equalizes. 2. any of various devices or appliances for equalizing strains, pressures, audio frequencies, etc. 3. an electric network of inductance, capacitance, or resistance established between two points in a given network to secure some constant relation, as even attenuation, between the two points. 4. Slang. a weapon, as a pistol. [1785–95]
Thesaurus
Noun1.equalizer - electronic equipment that reduces frequency distortionequalizer - electronic equipment that reduces frequency distortionequaliserelectronic equipment - equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)
2.equalizer - a weight that balances another weightcounterbalance, counterpoise, counterweight, equaliser, balancesash weight - a counterweight for a sliding sashtare - (chemical analysis) a counterweight used in chemical analysis; consists of an empty container that counterbalances the weight of the container holding chemicalsweight - an artifact that is heavy
3.equalizer - a score that makes the match evenscore - the act of scoring in a game or sport; "the winning score came with less than a minute left to play"
Translations
égaliseurequalizzatorepareggio

equalizer


equalizer

1. In sports, a goal that ties the score. And now we're headed into overtime because Jones scored an equalizer with less than two minutes left in regulation.2. slang A weapon, especially a gun. I always have an equalizer in case things go south.

equalizer

n. a gun; a pistol. (Underworld.) Rocko carried an equalizer but wouldn’t dream of using it.

equalizer


equalizer

[′ē·kwə‚līz·ər] (electronics) A network designed to compensate for an undesired amplitude-frequency or phase-frequency response of a system or component; usually a combination of coils, capacitors, and resistors. Also known as equalizing circuit. (mechanical engineering) A bar to which one attaches a vehicle's whiffletrees to make the pull of draft animals equal. Also known as equalizing bar. A bar which joins a pair of axle springs on a railway locomotive or car for equalization of weight. Also known as equalizing bar. A device which distributes braking force among independent brakes of an automotive vehicle. Also known as equalizer brake. A machine which saws wooden stock to equal lengths. (ordnance) A device attached to the carriage of those artillery weapons that, when emplaced, rest on two wheels and two trail ends; it is a compensating mechanism to transmit equally the weapon weight and firing shock.

Equalizer

An electronic filter that modifies the frequency response (amplitude and phase versus frequency) of a system for a specific purpose. Equalizers typically realize a more complicated frequency response in which the amplitude response varies continuously with frequency, amplifying some frequencies and attenuating others. An equalizer may have a response fixed in time or may be automatically and continuously adjusted. However, its frequency response is usually matched to some external physical medium, such as an acoustic path or communication channel, and thus inherently needs to be adjustable.

Equalizers can be used in many applications. In music and sound reproduction, equalizers can compensate for artifacts of the electrical-to-sound conversion or for unwanted characteristics of the acoustic environment such as sound reflections or absorption. Sound-recording and sonar systems can use equalizers to reduce unwanted interference. Most analog recording and playback devices, such as audio and video tape recorders, incorporate equalizers to compensate for the undesirable aspects of the recording medium, such as high-frequency roll-off, as well as to reduce noise and maximize dynamic range.

Equalization is also used to enhance the performance of systems that communicate or record digital signals (streams of bits). All communications and recording systems utilize a physical medium, such as wires; coaxial cables; radio, acoustic, or optical-fiber waveguides; or magnetic and optical recording media. These media cause distortion; that is, the output signal is different from the input signal. For example, on radio or acoustic channels there are often multiple paths from transmitter to receiver, each having a slightly different delay and superimposed at the receiver. An equalizer is an electrical device that compensates for this distortion, reversing the effect of the channel and returning a waveform approximating the input signal. The channel output signal in response to a particular input signal (…,0, 0, 1, 0, 0…) may differ from the input, but the equalizer output reproduces the channel input, at least to close approximation (see illustration). See Distortion (electronic circuits)

Communications channel with an equalizer placed at the outputCommunications channel with an equalizer placed at the output

If the characteristics of the channel are well known, the equalizer can be fixed, or nonadaptive. More commonly, the detailed characteristics of a channel are not known in advance. For example, an equalizer may be required to compensate for any length of wire, from very short up to a maximum. In other cases, the channel may be varying with time, as is characteristic of the radio channel from a fixed transmitter to a moving vehicle. An adaptive equalizer is able to adjust itself to compensate. Adaptive equalizers are important for achieving high bit rates in telephone computer modems, and also for digital communications over radio channels. See Data communications, Modem

equalizer


  • noun

Synonyms for equalizer

noun electronic equipment that reduces frequency distortion

Synonyms

  • equaliser

Related Words

  • electronic equipment

noun a weight that balances another weight

Synonyms

  • counterbalance
  • counterpoise
  • counterweight
  • equaliser
  • balance

Related Words

  • sash weight
  • tare
  • weight

noun a score that makes the match even

Related Words

  • score
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