Voltech AT360, User Manual

Page: 433 / 470

S
PECIFICATIONS
V
OLTECH
AT
I
U
SER
M
ANUAL
P
AGE
8-9
8.2.2 LS, LP, LSB, LPB, RLS, RLP
AND
X T
ESTS
The accuracy is based on the test conditions chosen to measure the
impedance of the parameter under test, and is given as:
A
T
= A
R
+ A
C
+ A
V
+ A
I
+ A
Q
+ A
B
Where
A
T
is the total accuracy (%)
A
R
is the basic relative accuracy (%)
A
C
is the calibration accuracy (%)
A
V
is the correction for voltage level (%)
A
I
is the correction for current level (%)
A
Q
is the correction for Q factor (%)
A
B
is the correction for Bias (%)
The value of
A
R
is given in the table in section 8.1 of this chapter.
The values of the other factors are given below.
A
C
= 0.08% + (0.00001% x
F
M
)
A
V
= 0.08% + (0.001% /
V
M
)
A
I
= 0.08% + (0.0001% /
I
M
) + (0.03% x
I
B
/ I
M
)
A
Q
= 0.08% + (2% / Q
M
)
(LS, LP, LSP, LPS and X)
A
Q
= 0.08% + (2% x Q
M
)
(RLS and RLP)
A
B
= 0.03% x
I
B
/
I
M
Where
F
M
is the measurement frequency (Hz)
V
M
is the measured voltage (V)
I
M
is the measured current (A)
I
B
is the bias current (A).
Q
M
is the Q factor of the measured impedance