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NI PXIe-4340 Calibration Procedure

4.

Configure a position measurement with the PXIe-4340.
a.

Create a DAQmx task.

b.

Create and configure the AI LVDT channel according to the values shown in Table 5.

c.

Commit the task.

d.

Perform DC Offset and AC amplitude measurement(s) with the DMM.

e.

Clear the task.

f.

Compare the DC Offset measurement to the Limits in Table 6. If the measurement is 
between these values, the devices passes the DC Offset test at this Excitation Voltage.

Table 5.  

PXIe-4340 AI LVDT Measurement Setup

Configuration

Value

Channel Name

Dev1/aix

, where 

x

 refers to the channel number

Task

AI Position LVDT

Sample Mode

Finite Number of Samples

Sample Clock Rate

25600

Samples per Channel

25600

Maximum Value

1

Minimum Value

-1

Voltage Excitation Wire Mode

4-wire

Voltage Excitation Source

Internal

Voltage Excitation Value

7

Voltage Excitation Frequency

10000

Sensitivity Units

mV/V/mm

Sensitivity

1

Units

Meters

Table 6.  

DC Offset

Measurement

Limits

DC Offset (All Amplitudes)

±10 mV

Содержание PXIe-4340

Страница 1: ...rldwide Support and Services 10 Software Calibrating the NI PXIe 4340 requires the installation of NI DAQmx on the calibration system Driver support for calibrating the PXIe 4340 was first available i...

Страница 2: ...nformation NI PXIe 4340 Device Specifications PXIe 4340 specifications and calibration interval NI DAQmx Readme Operating system and application software support in NI DAQmx NI DAQmx Help Information...

Страница 3: ...not available select a substitute using the requirements listed in Table 1 Table 1 Recommended Equipment for PXIe 4340 Verification Equipment Recommended Model Requirements DMM PXI 4070 Use a DMM that...

Страница 4: ...he TB 4340 Figure 1 TB 4340 Circuit Board Parts Locator Diagram C1 B1 A1 COPYRIGHT 2015 S N 159026B 01L NI TB 4340 EX EX RS RS AI AI CT AIGND CHANNEL 0 EXCITATION VERIFICATION EX EX RS RS AI AI CT AIG...

Страница 5: ...minate noise and thermal offsets Maintain an ambient temperature of 23 C 5 C The PXIe 4340 temperature will be greater than the ambient temperature Maintain an internal device temperature range of Tca...

Страница 6: ...the device name as it appears in MAX Accuracy Verification The following performance verification procedures describe the sequence of operations and provides the test points required to verify the PXI...

Страница 7: ...zero Once ADC Calibration On Input Impedance 10 M DC Noise Rejection High Order Number of Averages 10 Power Line Frequency Dependent upon the local power line characteristics Table 4 PXI 4070 Voltage...

Страница 8: ...hese values the devices passes the DC Offset test at this Excitation Voltage Table 5 PXIe 4340 AI LVDT Measurement Setup Configuration Value Channel Name Dev1 aix where x refers to the channel number...

Страница 9: ...8 Leave all other pins disconnected 2 Configure the channel as shown in Table 5 for 7 Vrms excitation 3 Perform the configured AI LVDT measurement and average the acquired measurements 4 Compare the r...

Страница 10: ...ompleted initialize and close a calibration sessions for Dev1 using the DAQmx Initialize External Calibration VI and the DAQmx Close External Calibration VI Specifications Refer to the NI PXIe 4340 De...

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