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Meaning of "time constant" in the English dictionary

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DICTIONARY
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PRONUNCIATION OF TIME CONSTANT

time constant play
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GRAMMATICAL CATEGORY OF TIME CONSTANT

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Time constant is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES TIME CONSTANT MEAN IN ENGLISH?

Time constant

In physics and engineering, the time constant, usually denoted by the Greek letter , is the parameter characterizing the response to a step input of a first-order, linear time-invariant system. The time constant is the main characteristic unit of a first-order LTI system. In the time domain, the usual choice to explore the time response is through the step response to a step input, or the impulse response to a Dirac delta function input. In the frequency domain the time constant also determines the bandwidth of a first-order time-invariant system, that is, the frequency at which the output signal power drops to half the value it has at low frequencies. The time constant is also used to characterize the frequency response of various signal processing systems – magnetic tapes, radio transmitters and receivers, record cutting and replay equipment, and digital filters – which can be modeled or approximated by first-order LTI systems. Other examples include time constant used in control systems for integral and derivative action controllers, which are often pneumatic, rather than electrical.

Definition of time constant in the English dictionary

The definition of time constant in the dictionary is the time required for the current or voltage in a circuit to rise or fall exponentially through approximately 63 per cent of its amplitude.

WORDS THAT BEGIN LIKE TIME CONSTANT

time and a half
time and again
time and motion
time and motion study
time bomb
time capsule
time charter
time check
time clock
time code
time delay
time deposit
time difference
time dilatation
time dilation
time discount
time draft
time exposure
time frame
time fuse

WORDS THAT END LIKE TIME CONSTANT

assistant
Boltzmann constant
care assistant
constant
consultant
contestant
dielectric constant
distant
gas constant
heat-resistant
instant
learning support assistant
on the instant
personal assistant
Protestant
research assistant
resistant
sales assistant
stain resistant
teaching assistant
water-resistant

Synonyms and antonyms of time constant in the English dictionary of synonyms

SYNONYMS

Translation of «time constant» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF TIME CONSTANT

Find out the translation of time constant to 25 languages with our English multilingual translator.
The translations of time constant from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «time constant» in English.

Translator English - Chinese

时间常数
1,325 millions of speakers

Translator English - Spanish

constante de tiempo
570 millions of speakers

English

time constant
510 millions of speakers

Translator English - Hindi

लगातार समय
380 millions of speakers
ar

Translator English - Arabic

الوقت ثابت
280 millions of speakers

Translator English - Russian

постоянная времени
278 millions of speakers

Translator English - Portuguese

constante de tempo
270 millions of speakers

Translator English - Bengali

সময় ধ্রুবক
260 millions of speakers

Translator English - French

la constante de temps
220 millions of speakers

Translator English - Malay

Pemalar masa
190 millions of speakers

Translator English - German

Zeitkonstante
180 millions of speakers

Translator English - Japanese

時定数
130 millions of speakers

Translator English - Korean

시정
85 millions of speakers

Translator English - Javanese

Wektu tetep
85 millions of speakers
vi

Translator English - Vietnamese

thời gian liên tục
80 millions of speakers

Translator English - Tamil

நேரம் மாறிலி
75 millions of speakers

Translator English - Marathi

वेळ स्थिर
75 millions of speakers

Translator English - Turkish

zaman sabiti
70 millions of speakers

Translator English - Italian

costante di tempo
65 millions of speakers

Translator English - Polish

stała czasowa
50 millions of speakers

Translator English - Ukrainian

Постійна часу
40 millions of speakers

Translator English - Romanian

constanta de timp
30 millions of speakers
el

Translator English - Greek

σταθερά χρόνου
15 millions of speakers
af

Translator English - Afrikaans

tydkonstante
14 millions of speakers
sv

Translator English - Swedish

tidskonstant
10 millions of speakers
no

Translator English - Norwegian

tidskonstant
5 millions of speakers

Trends of use of time constant

TRENDS

TENDENCIES OF USE OF THE TERM «TIME CONSTANT»

The term «time constant» is quite widely used and occupies the 53.586 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Quite widely used
75
/100
The map shown above gives the frequency of use of the term «time constant» in the different countries.
Principal search tendencies and common uses of time constant
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «time constant».

FREQUENCY OF USE OF THE TERM «TIME CONSTANT» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «time constant» during the past 500 years. Its implementation is based on analysing how often the term «time constant» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about time constant

EXAMPLES

10 ENGLISH BOOKS RELATING TO «TIME CONSTANT»

Discover the use of time constant in the following bibliographical selection. Books relating to time constant and brief extracts from same to provide context of its use in English literature.
1
Instrument Engineers' Handbook,(Volume 2) Third Edition: ...
1.1H The time-constant element. ' C.HEAO THE STEADY-STATE GAIN OF THE PROCESS IS Kp - B/A time (T) is called the time constant of the process. It has been found experimentally that after one time constant the value of the output ...
Bela G. Liptak, 1995
2
Instrument Engineers' Handbook, Fourth Edition, Volume One: ...
Figures 1.9a and 1 .9b show the responses of instruments to both step changes and ramps in their inputs and identify the time constant (T) and response times (T ) of these instruments. As shown in Figure 1 .9a, the time constant of an ...
Bela G. Liptak, 2003
3
Quantitative EPR
The decrease in the standard deviation of random (white) noise is proportional to the square root of the time constant. Thus, if the filter time constant is increased by a factor of 4 from 20.48 to 81.92 ms, the noise will be reduced by a factor of 2.
Gareth R. Eaton, Sandra S. Eaton, David P. Barr, 2010
4
HPLC: A Practical Guide
Computer- based integrators are powerful for the storage and further arrangement of data, and can also be used for column evaluation and as a system controller. Selection of Detector Time Constant The selection of the time constant of the ...
Toshihiko Hanai, 1999
5
Electroencephalography: Basic Principles, Clinical ...
The peak seemingly occurs earlier with the short time constant, but in reality the pen is returning to baseline sooner with a progressively less accurate demonstration of the actual peak. The terms time constant and low linear frequency are ...
Ernst Niedermeyer, F. H. Lopes da Silva, 2005
6
Essential Medical Physiology
Stimulating Current τ (I) FIGURE 2 Measurement of the membrane time constant. (A) Experimental setup; (B) change in membrane potential as a function of time after the delivery of a constant step of depolarizing current. (Modified from Kandel  ...
Leonard R. Johnson, John H. Byrne, 2003
7
The Acquisition of Logging Data
Response Wiiii mo, Tc :7,V:720'/h (effect oi the time constant and the velocity) ...... . -- Response with L:4', TC:7, \/: 720'/h (combined effect oi |ength,tirne constant and velocity) é Seconds 140 Shale l2O 'IOO Sonde displacement —> 80 60 Sand  ...
Oberto Serra, 1984
8
Understanding Dc Circuits
After one time constant, the voltage across the capacitor is about 63% of the source voltage. Figure 6-6a shows a time versus voltage charging curve. In five time constants, the voltage across the capacitor approximately equals the source  ...
Dale R. Patrick, Stephen W. Fardo, 1999
9
Pharmacokinetic Analysis: A Practical Approach
This text presents a unifying view of pharmacokinetics, which is called the Time Constant Approach. This approach is analogous to the noncom- partmental, the compartmental, and the statistical moment approaches, the three most frequently  ...
I-Der Lee, Gordon Amidon, 1996
10
Practical Process Control: Tuning and Troubleshooting
For a PID controller, dead time degrades performance more than a time constant. These characteristics are true for processes in general. Time Constant Process. Let the process gain be K and the time constant be τ. For various values of the ...
Cecil L. Smith, 2009

2 NEWS ITEMS WHICH INCLUDE THE TERM «TIME CONSTANT»

Find out what the national and international press are talking about and how the term time constant is used in the context of the following news items.
1
Kilt wearing Question Time constant from Nairn is national sensation
A KILT-WEARING contestant from Nairn whose passionate outburst on BBC Question Time turned him into a national online sensation said voting yes would be ... «Forres Gazette, Jul 14»
2
A Simple Model Illustrating the Respiratory System's Time Constant
When the respiratory system is subjected to ΔP, time is needed until ΔV occurs, and the time necessary to inflate 63% of its volume is called the time constant (τ) ... «Adv Physiology Education, Aug 06»

REFERENCE
« EDUCALINGO. Time constant [online]. Available <https://educalingo.com/en/dic-en/time-constant>. Apr 2024 ».
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