Iwatsu SY-8218 Instruction Manual page 21

B


m

a
H
0 m
B

r
B / B
r m
B
m


 
2 A B
m e m
N 1

  
1
P
c
N T
0
2
P
P 
c
cv
V
e
P
P 
c
cm
W
e
N
 
1
VA i
1 RMS
N
2
Normal mode

P

 

1
c
cos

VA

The θ of μ mode is calculated by the expression (2.17).
       

j
   
  
 
2
z
μ
mode
 

P

 
1 
c
cos
 

VA
 

Q
  
1

tan 
Q
  
A N

0 e
L
L
e
(2.7)
(μ : Vacuum permeability 4π×10
0

 
B
m
   
T

i t V t dt
1 2
   

t V t
2 RMS
(RMS: Effective value)



 

B
0
 
 
H
0 0
(μ: Complex permeability, j: imaginary unit, ω
  
2
 

0


0
2
1
-7
[H/m])
(2.8)
(2.9)
(2.10)
(2.11)
(2.12)
(2.13)
(2.14)
(2.15)
=2πf , f
0 0 0
(2.16)
(2.17)
(2.18)
(2.19)
(2.20)
9
B-H ANALYZER SY-8218 / SY-8219
: measurement frequency)