# CLIL ENGLISH PRESENTATION

SAMUELE FRANCO CAMBI

Created on March 19, 2024

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## Transcript

### PRESENTATION

### CLIL:BODE PLOT

##### Hendrick Wade Bode, an American engineer that invented the "Bode Plot", a method used to represent F(Jω).

### INTRODUCTION

##### This is the general representation of F(Jω) = Frequency response function

##### F(Jω)= [K * (Jω)^h* (1+ Jωτ1 )^n * (1- ω^2/ ω0^2+J2δ0 ω/ ω0)] / [ (Jω)^d * (1+ Jωτ2 )^m * (1- ω^2/ ω1^2+J2δ1 ω/ ω1)]

##### It describes the behaviour of the magnitude and phase of the transfer function of a system as ω varies.

### WHAT IS THE BODE PLOT?

##### They are drawn on a semi-logarithmic graphic. • On the x-axis there are the values of ω in powers of 10.• On the Y axis we have:1) The module expressed in deciBel2) The phase expressed in degrees or radiants.

### WHERE ARE THEY DRAWN?

1) II dB II = 20log IKI = 20log I30I = 29,54dB ---> LK=0°2) II dB II = 20log IKI = 20log I0,2I = 13,97dB ---> LK=0°3) II dB II = 20log IKI = 20log I-15I = 23,52dB ---> LK=-180°

Now we have to calculate the modules and the phases:

1) K=30 2) K=0,23) K=-15