National Instruments NI 4070/4072 6 1/2-Digit FlexDMM 用户手册
NI 4070/4072 Calibration Procedure
20
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23. Call
niDMM_ConfigureMeasurement
with the following
parameters:
•
Function =
NIDMM_VAL_AC_VOLTS_DCCOUPLED
•
Range =
50
•
Resolution =
50e–6
24. Call
niDMM_Read
. Verify that this measurement falls between the
limits listed in Table 16.
25. Refer to Table 5 for the appropriate calibrator outputs and parameter
values as you complete the following steps:
a.
On the calibrator, output the value listed in the Calibrator Output
column in Table 5 for the current iteration.
column in Table 5 for the current iteration.
b.
Call
niDMM_ConfigureMeasurement
with Mode set to
NIDMM_VAL_AC_VOLTS
and the remaining parameters as shown
in Table 5 for the current iteration.
c.
Call
niDMM_Read
. Verify that this measurement falls between the
limits listed in Table 16.
d.
Call
niDMM_ConfigureMeasurement
again, changing Mode to
NIDMM_VAL_AC_VOLTS_DCCOUPLED
.
e.
Call
niDMM_Read
. Verify that this measurement falls between the
limits listed in Table 16.
Table 5. niDMM_ConfigureMeasurement Parameters
Iteration
Calibrator Output
niDMM_ConfigureMeasurement Parameters
Amplitude
Frequency
Function
Range
Resolution
1
50 V
50 Hz
NIDMM_VAL_AC_VOLTS
50
50e–6
50 V
50 Hz
NIDMM_VAL_AC_VOLTS_DCCOUPLED
50
50e–6
2
50 V
1 kHz
NIDMM_VAL_AC_VOLTS
50
50e–6
50 V
1 kHz
NIDMM_VAL_AC_VOLTS_DCCOUPLED
50
50e–6
3
50 V
20 kHz
NIDMM_VAL_AC_VOLTS
50
50e–6
50 V
20 kHz
NIDMM_VAL_AC_VOLTS_DCCOUPLED
50
50e–6
4
50 V
50 kHz
NIDMM_VAL_AC_VOLTS
50
50e–6
50 V
50 kHz
NIDMM_VAL_AC_VOLTS_DCCOUPLED
50
50e–6
5
50 V
100 kHz
NIDMM_VAL_AC_VOLTS
50
50e–6
50 V
100 kHz
NIDMM_VAL_AC_VOLTS_DCCOUPLED
50
50e–6
6
50 V
300 kHz
NIDMM_VAL_AC_VOLTS
50
50e–6
50 V
300 kHz
NIDMM_VAL_AC_VOLTS_DCCOUPLED
50
50e–6