Table of Contents
Advertisement
3-2-2. Offset
Offset compensates for the residual impedance and stray admittance at the calibration plane.
The stray admittance and the residual impedance of the probe
The probe pin or test fixture must be configured the same as
forming compensation and for making a measurement.
3-2-3. Furnished Calibration Standards
The reference values of the furnished calibration standards are listed in Table 3-1.
Table 3-1. Reference Values for Calibration Standards
Standard
OS admittance
on
impedance
son
impedance
0.31
pF of the OS standard includes the stray capacitance inside of the probe and
around the standard pin. The impedance of the
include the residual impedance of the standard or the N-type pins.
These values are stored in th e 4194A's EEPROM
The standard pin must be used when calibrating the probe, because the calibra
tion standards are made to match the standard pin.
If
you extend the measurement point beyond the probe tip, and you have accu
rate standards that can be connected to the end of the extension, calibration
be accurate
to
will
Operation Manual for the procedure for entering the reference values of your
standards.
3- 2
Note
as
Note
Note
the
end
of
the
extension.
pin
must be offset.
it
will be for per
Reference Value
+ j
OS
x w x 0.31 pF
on+ j
OH
x
x w
son + j
x w x S.7SnH
on
and
son
standards does not
the calibration reference values.
to
F
Refer
Appendix
of
the 4194A
Advertisement
Table of Contents
