National Instruments NI PXI-5422 用户手册
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47
NI PXI-5422 Calibration Procedure
8.
Take the following voltage measurements at the NI PXI-5422 CH 0
front panel connector into a high-impedance load:
front panel connector into a high-impedance load:
a.
Call
niFgen_SetAttributeViInt32
to set the offset DAC
value (niFgen property node: Calibration»Offset DAC Value)
using the following parameters:
using the following parameters:
•
vi: The session handle returned from
niFgen_InitExtCal
•
channelName:
"0"
•
attributeID:
NIFGEN_ATTR_OFFSET_DAC_VALUE
•
value:
50000
b.
Call
niFgen_Commit
(niFgen Commit VI) to commit the
attribute values to the device using the following parameter:
•
vi: The session handle returned from
niFgen_InitExtCal
c.
Wait 500 ms for the output to settle.
d.
Use the DMM to measure the voltage output by the device.
This measurement is
This measurement is
measurement 0
e.
Call
niFgen_SetAttributeViInt32
to set the offset DAC
value (niFgen property node: Calibration»Offset DAC Value)
using the following parameters:
using the following parameters:
•
vi: The session handle returned from
niFgen_InitExtCal
•
channelName:
"0"
•
attributeID:
NIFGEN_ATTR_OFFSET_DAC_VALUE
•
value:
15000
f.
Call
niFgen_Commit
(niFgen Commit VI) to commit the
attribute values to the device using the following parameter:
•
vi: The session handle returned from
niFgen_InitExtCal
g.
Wait 500 ms for the output to settle.
h.
Use the DMM to measure the voltage output by the device.
This measurement is
This measurement is
measurement 1