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NI 5412 Calibration Procedure
6. Call
niFgen_CalAdjustMainPathPreAmpOffset
(niFgen Cal Adjust Main Path Pre
Amp Offset VI) using the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
configuration
: The
Current Configuration
value for the current iteration from
Table 8.
•
gainDACValues
: An array containing two elements—the two values (
2000
,
1000
)
that you set as the gain DAC in the order that you measured them.
•
offsetDACValues
: An array containing two elements—the two values (
50000
,
15000
) that you set as the offset DAC in the order that you measured them.
•
measuredOutputs
: An array containing three elements—the three output voltages
(
measurement 0
,
measurement 1
,
measurement 2
) that you measured in the
order that you measured them.
Adjusting the Main Path Pre-Amplifier Gain
1. Call
niFgen_SetAttributeViInt32
to set the analog path value (niFgen property
node:
Output Attributes»Analog Path
) using the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_ANALOG_PATH
•
value
:
NIFGEN_VAL_FIXED_LOW_GAIN_ANALOG_PATH
2. Call
niFgen_SetAttributeViReal64
to set the post-amplifier attenuation (niFgen
property node:
Calibration»Post-Amplifier Attenuation
) using the following
parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_POST_AMPLIFIER_ATTENUATION
•
value
:
0
3. Call
niFgen_SetAttributeViInt32
to set the offset DAC value (niFgen property
node:
Calibration»Offset DAC Value
) using the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_OFFSET_DAC_VALUE
•
value
:
32000
