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کانال خرید و فروش پرنده

electronic cir ترجمه به انگلیسی translated to english

    Deacţionare motors of various tools, machinery and transport equipment converts electrical energy into energiemecanică, electric lamps converts light into energy, electric ovens transforms it into energietermica (heat) to melt, heated or dried.1.

    x (t)) tt (1 = X

    TTM is d

    -

    21

    12

    (1.3. DC (a) and AC (b) One way to express the intensity or magnitude of a quantity alternative is to measure

    peak

    or

    peak to peak value

    (Fig. Classification quantities measured by how timpMărimea variaţieîn constant: it is the size which changes its value over time, with only two parameters, amplitude and deterministic polaritate.Mărimi : are those quantities which possesses its own energy liberia.

    Getting Started

    1.5


     

    Getting Started

    The mean (DC component) of random sizes within a certain time t

    1

    -T

    2

    is given by (1. Getting Started

    To highlight the importance of electrical engineering knowledge retention is necessary to evening the most used form of energy is electricity in different areas.1.6) 6



     

    Getting Started

    1.4.1. Regular aleatoareMărimea size: has the property that the values ​​they take at certain times, repeat dupăintervale equal time.2)

    (T) d

    21

    12

    x) tt (1 = X

    2tte f

    -

    (1.

    X

    max

     

    X

    VV

    = 2Xmax

     

    Time

     

    Fig.Valoarea defrecvente spectrum average (DC component) of a regular size is:

    x (t) T1 = X

    T + TTM e d

    0

    0

    (1.2) and the actual value of the relationship (1.5). AlternativeFaţă main waveform and DC voltage, whose values ​​are generally stable over time, tensiuneaalternativă alternate polarity (Fig.Mărimea: unpredictable variation, the values ​​they take different time points fiindîntâmplătoare.1.Analiza in these sizes is done using Fourier series, resulting discret. These sizes can not be characterized only in probabilistic sense using methods statistice.c) After how variation over time:

     

     

    MărimeaelectricăConstantă VariabilăDeterministăAleatoareNe eriodicăPeriodicăSinusoidală (aperiodic AlternativăPulsatorie

    Fig. Thus for a regular size, value instantaneous (momentary), x (t), satisfies the relation:

    () ()

    Ttxtx

    ± =

    (1.3) where t

    2

    -T

    1

    is the integration time or measurement time.Exemplu sizes: temperature, voltage, electrical current, passive putereaelectrică.1.6. Thus, otensiune rectangular 10V peak value is clearly higher than the value for a voltage of 10V devârf triangular effect of these two voltages that supply the same pregnancy fiinddiferit (Fig.

     

    b) square wave) sine wave c) triangular wave d) sawtooth wave egalearii areas egalearii equal egalearii

    Fig. If we consider the use of electricity întelecomunicaţii in automation, home appliances, resulting in the vast field of energy aceastăformă finds its use. For their measurement is necessary to resort to an auxiliary power source.Să application determine the average value and the actual value of the periodic signal of Fig.3.

    x (t) tX

    med

    Fig.Mărimea: is that size whose evolution over time is predictable and can be descrisăprintr a mathematical function and that unpredictability comes in a small random măsură.1.5.

     a) b)

    Fig.3).1. A classification of electrical quantities

    a) After the presence or absence of their energy: active Size: sizes are those associated with energy, some of which can be used for measuring înprocesul.1. Maximum and peak to peak value of a quantity alternativeDin Unfortunately each of these values ​​can mislead us if we compare two different wavelengths.1.1. The electrical maiîntâlnite alternative sizes are shown in Fig.6).

     

    Tax (t)

    τ

     T

    Fig.1.7) .1.4.Mărimi: characterized by: mode (intensity) and direction sens.4) and alternating current alternating in direction (Fig.4) where T is the period and f = 1 / T is frecvenţa. Size Examples passive resistance, capacity, inductance, etcb) After-dimensional appearance space: scalars: completely determined by a single vector număr. The ratio between the total energy, which has the size and power that folosităpentru measurement should be large so as not to affect the value of assets size măsurate.1.1.5) Another parameter used to characterize periodic quantities is the actual value:

    (T) d

    0

    XT1 = X

    2Ttte f

    0

    +

    (1. Signal dreptungiular alternative size:

     

    is the regular size which averaged over a period is zero.1. Currently, toatesectoarele activity is used, in various ways, electricity.Mărimea periodic in time can be described as a function of amplitude, frequency, period and frequency fază.7

    .

    1.2
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