Измерение магнитострикции ферромагнетика с помощью тензодатчика

Реферат - Физика

180 . , [100] _{010], , [100] [010]. 180 .

V0I00= V00I0 =0

I= 2/3 (2) - Is

) 90 . ,
[100] [010], , [001] [001]. V100=V010=V/2,V001=V00I=0

I = (2) - Is

, 90 ,

?l/l=1/3[(l/l)[001] (l/l)[100]]=1/3[(l/l)[001] (l/l)[010]] = (1/3)(3/4) 100 = 100

(28)

(l/l)[001] (1 = 2 = 0, 3 = 1 ),

(l/l)[100] (2 = 3 = 0, 1 = 1 ),

(l/l)[010] (1 = 3 = 0, 2 = 1 ),

, (28) , I= (2) - Is, 90 , .
) . 180 90 , , , [110] (001) . - . I=Is cos . [110]

( l/l)[110] = - 1/2100 + 3/4100 (21+22) + 3/211112 ,

1 = cos(/4-), 2 = sin(/4-) ,

( l/l)[110] = 100 + 111 (2cos2 -1) 100 + 111 (2(I/Is)2 -1).

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