8.Σύνθεση ταλαντώσεων

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Transcript of 8.Σύνθεση ταλαντώσεων

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( ) . , t, , , t .. - 4

, . , . .. - 5

, .

x x2 A2

A A2 t A1

x1=1t

x2=A2(t+) x = x1 + x 2

x1

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: x=A(t+) : Ax x2 A2 A A2 t A1 2 2

= A + A + 2A1A2 2 1 2 2

x1

: 2 = 1 + 2

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1>2, =0 =1+2, =0

A2>A1 , = = A1 - A2 =0 = 1=2 , = =0. - 8

, .

x1=A1t , x2=A2t : 1 - 2 1 + 2 x = 2A ( t ) ( t) 2 2 , ,

1 - 2 = 2( t) 2'. -

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'

1 - 2 =( ) 2.

1 + 2 =( ) 2 2 (s).

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12, 1 + 2 = 1 2. 2 x = A' t . () .. - 11

, ( ). ( ) () .

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x1=A1t

x2=A2t

:

f = f - f2 113

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f - f2 A = 2A2( 1 t ) 2 .'

f1 + f2 f = 2

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f = f - f2 11 1 T = = f f - f2 1

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( 5 ) 1s. ,

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, 2 1s. ,

f + f2 f = 1 = 5Hz 2

f = f - f2 = 2Hz 1. - 15

t, .

t = T

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http://www.karavolas.gr/armonikos/diakrothma.html

Interactive Physic f1=440Hz f1=440Hz f2= 4 ,5 H 40 z

f2= 4 1H 4 z

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http://users.sch.gr/pazoulis/e-ergastirio/diakrcomputer/diakr-computer.htm Google.

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