phyphy.py

Created by thomas-vignal01

Created on October 19, 2022

1.11 KB


freq : 1/t

pulsation / omega :
  2*PI*f
  
signaux sinusoidale
  
valeur efficace signal sinus alter:
  Vmax / rac de 2
  
dephasage : arcsin(U0 / Umax) 
que pour sinusoide

valeur moyenne sinusoidale
(Umax + Umin) / 2

amplitude signal périodique : 
  (Umax - Umin) / 2

veff signal sinus non alter : 
  Ueff2 = Ueff2 ond + Umoy2
  
-- signaux carré --  
  
valeur moyenne signal carré :
  (tH * Vmax + tB* Vmin) / T
  valeur efficace signal carré:
élever la grandeur au carré (signal , paint qui clc)
 calculer valeur moyenne et prendre la racine carré de cette valeur moyenne
 
rapport cyclique : tH / T en pourcentage

u(t) = val effi. rac de 2. sin(omega * t + phi)
    valeur maximale. sin(omega * t + phi)
      
alter = Vmoy = 0

v eff spectre = 
sqrt(Vmoy*2 + A1*2/2 + A3*2/2)

distorsion : 
  
(sqrt(S2*2 + S3*2 + S4*2) / S1)

pair = f(t) = f(-t)
impair = (-f(t)) = f(-t)

pcp décompo : 
toute fonction périodique s(t)
de fréq f(0) peut ê décomposé
en un somme de f sinusoidale
de fréquence n f(0)

VdBv : 20log Veff en V

Gain Decibel = 
10log(ps/pe) = 20log(vs/ve)

signal 0dBV = signal ampli 1v eff

During your visit to our site, NumWorks needs to install "cookies" or use other technologies to collect data about you in order to:

With the exception of Cookies essential to the operation of the site, NumWorks leaves you the choice: you can accept Cookies for audience measurement by clicking on the "Accept and continue" button, or refuse these Cookies by clicking on the "Continue without accepting" button or by continuing your browsing. You can update your choice at any time by clicking on the link "Manage my cookies" at the bottom of the page. For more information, please consult our cookies policy.