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11

NI 5402/5406 Calibration Procedure

Verifying the Oscillator Frequency Accuracy

Complete this test to verify the frequency accuracy of the oscillator on the
NI 5402/5406. In this test, you generate a 10 MHz sine wave with the
NI 5402/5406 and measure the sine wave frequency with a frequency
counter.

1.

Connect the NI 5402/5406 CH 0 front panel connector to the frequency
counter.

2.

Open an instrument driver session, initialize the device for operation,
and return a session handle that will be used to identify the device in
future NI-FGEN calls by calling the niFgen Initialize VI.

3.

Configure the waveform by calling the niFgen Configure Standard
Waveform VI.

LabVIEW Block Diagram

C/C++ Function Call

Call

niFgen_init

using

the following parameters:

resourceName

: The

name of the device that
you want to verify. This
name is the device
identifier assigned in
MAX.

IDQuery

:

VI_TRUE

resetDevice

:

VI_TRUE

LabVIEW Block Diagram

C/C++ Function Call

Call

niFgen_

ConfigureStandard

Waveform

using the

following parameters:

vi

: The session handle

returned from

niFgen_init

.

channelName

:

"0"

waveform

:

NIFGEN_VAL_WFM_SINE

frequency

:

10,000,000

amplitude

:

1

startPhase

:

0

dcOffset

:

0

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Содержание NI 5402

Страница 1: ...s 4 Password 4 Calibration Interval 4 Test Equipment 5 Test Conditions 5 Calibration Procedures 6 Initial Setup 6 Self Calibration 7 MAX 7 FGEN Soft Front Panel 7 NI FGEN 8 Verification 9 Verifying th...

Страница 2: ...mbol is marked on a product refer to the Safety and Radio Frequency Interference Read Me First for information about precautions to take bold Bold text denotes items that you must select or click in t...

Страница 3: ...EN function panel niFgen fp provides access to the available functions Calibration functions are LabVIEW VIs or C function calls in NI FGEN In this document the LabVIEW VI or NI FGEN LabVIEW Property...

Страница 4: ...lished specification values for the NI 5402 5406 These documents are installed with NI FGEN You can also find the latest versions of the documentation at ni com manuals Password The default password f...

Страница 5: ...e of at least 15 minutes after NI FGEN initiates a session to the board The warm up time ensures that the measurement circuitry of the NI 5402 5406 is at a stable operating temperature Table 1 Equipme...

Страница 6: ...st the device calibration constants with respect to a known voltage source and update the calibration date and temperature 5 Reverification Repeat the verification process to ensure that the device is...

Страница 7: ...ed by using an adjustment procedure You can initiate self calibration interactively from Measurement Automation Explorer MAX or from the FGEN Soft Front Panel SFP Alternatively you can initiate self c...

Страница 8: ...session handle that will be used to identify the device in future NI FGEN calls by calling the niFgen Initialize VI Note Throughout the procedure refer to C C function call parameters for the LabVIEW...

Страница 9: ...elf calibrate the NI 5402 5406 after warm up and before beginning a verification procedure You can verify the following NI 5402 5406 specifications Oscillator frequency accuracy Sine wave flatness acc...

Страница 10: ...Figure 1 for the names and locations of the NI 5402 5406 front panel connectors Figure 1 NI PXI 5402 5406 and NI PCI 5402 5406 Front Panel Connectors ACCESS ACTIVE SYNC OUT PFI 0 PFI 1 NI PXI 540X REF...

Страница 11: ...rn a session handle that will be used to identify the device in future NI FGEN calls by calling the niFgen Initialize VI 3 Configure the waveform by calling the niFgen Configure Standard Waveform VI L...

Страница 12: ...specifications shown in Table 2 7 Abort waveform generation by calling the niFgen Abort Generation VI LabVIEW Block Diagram C C Function Call Call niFgen_Initiate Generation using the following parame...

Страница 13: ...sion and all of its properties and release any memory resources NI FGEN uses by calling the niFgen Close VI 9 If any of the errors are greater than the calibration test limits perform an external Adju...

Страница 14: ...ut power level measured during the generation of a 50 kHz sine wave The following figure shows the programming flow for this test Figure 2 Programming Flow for the Verification of the Sine Wave Flatne...

Страница 15: ...he waveform by calling the niFgen Configure Standard Waveform VI LabVIEW Block Diagram C C Function Call Call niFgen_init using the following parameters resourceName The name of the device that you wa...

Страница 16: ..._GAIN_ ANALOG_PATH 3 00 0 00 1 179400 0 13 0 4 3 NIFGEN_VAL_ FIXED_LOW_GAIN_ ANALOG_PATH 6 00 0 00 0 835000 0 13 0 4 4 NIFGEN_VAL_ FIXED_LOW_GAIN_ ANALOG_PATH 9 00 0 00 0 591100 0 13 0 4 5 NIFGEN_VAL_...

Страница 17: ...all niFgen_Set AttributeViInt32 using the following parameters vi The session handle returned from niFgen_init channelName 0 attributeID NIFGEN_ATTR_ ANALOG_PATH value The Analog Path value listed in...

Страница 18: ...t AttributeViReal64 using the following parameters vi The session handle returned from niFgen_init channelName 0 attributeID NIFGEN_ ATTR_POST_AMPLIFIER _ATTENUATION value The Post Amplifier Attenuati...

Страница 19: ...sine wave configured for the current iteration of Table 3 at each of the frequencies listed in Table 4 LabVIEW Block Diagram C C Function Call Call niFgen_Initiate Generation using the following param...

Страница 20: ...he following calculation Sine Wave Flatness Error Measured Power of Generated Sine Wave Measured Power of 50kHz Sine Wave d Repeat steps 10a through 10c for each frequency in Table 4 11 Abort waveform...

Страница 21: ...f DC voltages and offsets measure the voltage with a DMM and compare the results to the error limits 1 Connect the NI 5402 5406 CH 0 front panel connector to the DMM 2 Open an instrument driver sessio...

Страница 22: ...edance LabVIEW Block Diagram C C Function Call Call niFgen_ SetAttribute ViBoolean using the following parameters vi The session handle returned from niFgen_init channelName 0 attributeID NIFGEN_ATTR_...

Страница 23: ...ut Impedance LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViInt32 using the following parameters vi The session handle returned from niFgen_init channelName 0 attributeID NIFGEN_AT...

Страница 24: ...fine User Standard Waveform VI LabVIEW Block Diagram C C Function Call Call niFgen_ ConfigureStandard Waveform using the following parameters vi The session handle returned from niFgen_init channelNam...

Страница 25: ...5 0 011088 0 037175 8 0 0 07 6 965 6 965 0 011088 0 037175 9 0 0 07 4 965 4 965 0 008087 0 027175 10 0 0 07 4 965 4 965 0 008087 0 027175 11 0 0 07 3 465 3 465 0 005837 0 019675 12 0 0 07 3 465 3 465...

Страница 26: ...0 00228 39 0 0 012 0 029 0 029 0 000567 0 002205 40 0 0 012 0 029 0 029 0 000567 0 002205 41 0 0 012 0 019 0 019 0 000553 0 002155 42 0 0 012 0 019 0 019 0 000553 0 002155 43 0 0 012 0 014 0 014 0 000...

Страница 27: ...ion Call Call niFgen_Set AttributeViReal64 using the following parameters vi The session handle returned from niFgen_init channelName 0 attributeID NIFGEN_ ATTR_FUNC_AMPLITUDE value The Amplitude valu...

Страница 28: ...r positive full scale using the following formula DC Error Measured DC Output Ideal DC Output 17 Compare the DC Error to the calibration test limits and the published specifications LabVIEW Block Diag...

Страница 29: ...d release any memory resources NI FGEN uses by calling the niFgen Close VI 20 If any of the errors are greater than the calibration test limits perform an Adjustment LabVIEW Block Diagram C C Function...

Страница 30: ...and return a session handle that will be used to identify the device in future NI FGEN calls by calling the niFgen Initialize VI 3 Set the load impedance by calling the niFgen Property Node and select...

Страница 31: ...e returned from niFgen_init channelName 0 attributeID NIFGEN_ATTR_OUTPUT_ IMPEDANCE value 50 00 Table 6 Values for Verifying Square Wave Gain and Offset Accuracy Iteration AnalogStatic Value Amplitude...

Страница 32: ...0045 29 7FFF 0 3 0 0 15 0 0013 0 0035 30 FFFF8000 0 3 0 0 15 0 0013 0 0035 31 7FFF 0 2 0 0 1 0 0012 0 003 32 FFFF8000 0 2 0 0 1 0 0012 0 003 33 7FFF 0 14 0 0 07 0 00114 0 0027 34 FFFF8000 0 14 0 0 07...

Страница 33: ...0 0085 0 0395 57 7FFF 3 5 1 75 3 5 0 00625 0 02825 58 FFFF8000 3 5 1 75 3 5 0 00625 0 02825 59 7FFF 2 5 1 25 2 5 0 00475 0 02075 60 FFFF8000 2 5 1 25 2 5 0 00475 0 02075 61 7FFF 2 1 2 0 004 0 017 62...

Страница 34: ...25 0 05 0 001075 0 002375 85 7FFF 0 035 0 0175 0 035 0 001053 0 0022625 86 FFFF8000 0 035 0 0175 0 035 0 001053 0 0022625 87 7FFF 0 025 0 0125 0 025 0 001038 0 0021875 88 FFFF8000 0 025 0 0125 0 025 0...

Страница 35: ...ureStandard Waveform using the following parameters vi The session handle returned from niFgen_init channelName 0 waveform NIFGEN_ VAL_WFM_SQUARE frequency 1 000 000 amplitude The Amplitude value for...

Страница 36: ...Initiate waveform generation by calling the niFgen Initiate Generation VI 9 Wait 200 ms for the output to settle 10 Use the DMM to measure the DC voltage output of the NI 5402 5406 This is the measur...

Страница 37: ...iver session destroy the instrument driver session and all of its properties and release any memory resources NI FGEN uses by calling the niFgen Close VI 15 If any of the errors are greater than the c...

Страница 38: ...VI 2 Close the instrument driver session and save the calibration date and temperature to the onboard EEPROM by calling the niFgen Close Ext Cal VI LabVIEW Block Diagram C C Function Call Call niFgen...

Страница 39: ...flatness correction Calibration ADC adjustment characterizes the onboard ADC gain and offset so that self calibration results in an accurately calibrated device Oscillator frequency adjustment charac...

Страница 40: ...xternal calibration procedure Figure 3 NI 5402 5406 External Calibration Procedure Initialize Analog Output Calibration Adjust Main Path Pre Amp Offset Adjust Main Path Pre Amp Gain Adjust Main Path P...

Страница 41: ...ctor to a DMM 2 Open an NI FGEN external calibration session by calling the niFgen Init Ext Cal VI 3 Initialize ADC calibration by calling niFgen Initialize Cal ADC Calibration VI LabVIEW Block Diagra...

Страница 42: ...iagram C C Function Call Call niFgen_Set AttributeViInt32 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID NIFGEN_ATTR_ ANALOG_PATH value...

Страница 43: ...g Filter Enabled LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViInt32 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID...

Страница 44: ...r Attenuation LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViReal64 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID N...

Страница 45: ...ion Output Enabled LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViReal64 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attribut...

Страница 46: ...EW Block Diagram C C Function Call Call niFgen_Write Binary16Analog StaticValue using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 value 27 232 LabVIEW...

Страница 47: ...ction Call Call niFgen_Commit using the following parameter vi The session handle returned from niFgen_InitExtCal LabVIEW Block Diagram C C Function Call Call niFgen_Read CalADC using the following pa...

Страница 48: ...M to measure the NI 5402 5406 output voltage This measurement is external measurement 0 which is used in step 30 LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViBoolean using the fo...

Страница 49: ...ration Output Enabled LabVIEW Block Diagram C C Function Call Call niFgen_Write Binary16Analog StaticValue using the following parameters vi The session handle returned from niFgen_InitExtCal channelN...

Страница 50: ...ll niFgen_Commit using the following parameter vi The session handle returned from niFgen_InitExtCal LabVIEW Block Diagram C C Function Call Call niFgen_Read CalADC using the following parameters vi T...

Страница 51: ...29 Use the DMM to measure the NI 5402 5406 output voltage This measurement is external measurement 1 which is used in step 30 LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViBoolea...

Страница 52: ...n_Cal AdjustCalADC using the following parameters vi The session handle returned from niFgen_InitExtCal voltagesMeasured Externally external measurement 0 external measurement 1 voltagesMeasured WithC...

Страница 53: ...ce by calling the niFgen Commit VI LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViInt32 using the following parameters vi The session handle returned from niFgen_InitExtCal channel...

Страница 54: ...rements to NI FGEN which determines the calibration constants for the device LabVIEW Block Diagram C C Function Call Call niFgen_CloseExtCal using the following parameters vi The session handle return...

Страница 55: ...alog output calibration by calling the niFgen Initialize Analog Output Calibration VI LabVIEW Block Diagram C C Function Call Call niFgen_Init ExtCal using the following parameters resourceName The na...

Страница 56: ...IEW Block Diagram C C Function Call Call niFgen_Write Binary16Analog StaticValue using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 value 0 LabVIEW Bloc...

Страница 57: ...fset DAC Value LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViInt32 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID N...

Страница 58: ...nuation LabVIEW Block Diagram C C Function Call Call niFgen_ SetAttribute ViBoolean using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID NIFGE...

Страница 59: ...tes Load Impedance LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViReal64 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attribut...

Страница 60: ...calling the niFgen Commit VI LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViInt32 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName...

Страница 61: ...nnelName 0 value 0 Table 7 Attributes and Values for Main Path Pre Amplifier Offset Iteration Analog Filter Enable Pre Amplifier Attenuation dB Current Configuration 1 VI_FALSE 0 NIFGEN_VAL_CAL_CONFIG...

Страница 62: ...ttribute ViBoolean using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID NIFGEN_ATTR_ANALOG_ FILTER_ENABLED value The Analog Filter Enable valu...

Страница 63: ...ling the niFgen Property Node and selecting Calibration Offset DAC Value LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViInt32 using the following parameters vi The session handle r...

Страница 64: ...5 f Set the gain DAC value by calling the niFgen Property Node and selecting Calibration Gain DAC Value LabVIEW Block Diagram C C Function Call Call niFgen_Commit using the following parameter vi The...

Страница 65: ...ed in step 5 j Set the offset DAC value by calling the niFgen Property Node and selecting Calibration Offset DAC Value LabVIEW Block Diagram C C Function Call Call niFgen_Commit using the following pa...

Страница 66: ...t Main Path Pre Amp Offset VI LabVIEW Block Diagram C C Function Call Call niFgen_Commit using the following parameter vi The session handle returned from niFgen_InitExtCal LabVIEW Block Diagram C C F...

Страница 67: ...and selecting Calibration Offset DAC Value LabVIEW Block Diagram C C Function Call Call niFgen_Write Binary16Analog StaticValue using the following parameters vi The session handle returned from niFg...

Страница 68: ...ONFIG_MAIN_PATH_FILTER_OFF_3DB 3 VI_FALSE 6 NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_OFF_6DB 4 VI_FALSE 9 NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_OFF_9DB 5 VI_FALSE 12 NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FIL...

Страница 69: ...and selecting Calibration Gain DAC Value LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViReal64 using the following parameters vi The session handle returned from niFgen_InitExtCal...

Страница 70: ...e the DMM to measure the NI 5402 5406 output voltage This measurement is measurement 0 which is used in step 6 LabVIEW Block Diagram C C Function Call Call niFgen_Write Binary16Analog StaticValue usin...

Страница 71: ...log Static Value VI LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViInt32 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attribut...

Страница 72: ...just Main Path Pre Amp Gain VI LabVIEW Block Diagram C C Function Call Call niFgen_Commit using the following parameter vi The session handle returned from niFgen_InitExtCal LabVIEW Block Diagram C C...

Страница 73: ...and selecting Standard Function Output Waveform LabVIEW Block Diagram C C Function Call Call niFgen_Write Binary16Analog StaticValue using the following parameters vi The session handle returned from...

Страница 74: ...tenuation LabVIEW Block Diagram C C Function Call Call niFgen_ SetAttribute ViBoolean using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID NIF...

Страница 75: ...Amplifier Gain and Offset Iteration Analog Path Post Amp Attenuation dB Current Configuration 1 NIFGEN_VAL_FIXED_LOW_GAIN_ ANALOG_PATH 0 NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_ LOW_GAIN_0DB 2 NIFGEN_VAL_FIXE...

Страница 76: ...AttributeViInt32 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID NIFGEN_ATTR_ ANALOG_PATH value The Analog Path value for the current it...

Страница 77: ...g the niFgen Commit VI c Wait 500 ms for the output to settle d Use the DMM to measure the NI 5402 5406 output voltage This measurement is measurement 0 which is used in step 9 LabVIEW Block Diagram C...

Страница 78: ...MM to measure the NI 5402 5406 output voltage This measurement is measurement 1 which is used in step 9 LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViInt32 using the following par...

Страница 79: ...et VI LabVIEW Block Diagram C C Function Call Call niFgen_Cal AdjustMainPath PostAmpGainAnd Offset using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 co...

Страница 80: ...xtCal action If the external adjustment procedure completed without any errors use NIFGEN_VAL_EXT_CAL_ COMMIT This function then stores the new calibration constants updated calibration dates updated...

Страница 81: ...CH 0 front panel connector to a power meter 2 Open an NI FGEN external calibration session by calling the niFgen Init Ext Cal VI 3 Initialize flatness calibration by calling the niFgen Initialize Flat...

Страница 82: ...ction Call Call niFgen_Set AttributeViBoolean using the following parameters vi The session handle returned from niFgen_ InitExtCal channelName 0 attributeID NIFGEN_ ATTR_FLATNESS_ CORRECTION_ENABLED...

Страница 83: ...ANALOG_PATH 6 00 0 00 0 850000 NIFGEN_VAL_CAL_ CONFIG_LOW_GAIN_PATH_ PRE_AMP_6DB 4 NIFGEN_VAL_FIXED_ LOW_GAIN_ ANALOG_PATH 9 00 0 00 0 600000 NIFGEN_VAL_CAL_ CONFIG_LOW_GAIN_PATH_ PRE_AMP_9DB 5 NIFGEN...

Страница 84: ...AttributeViInt32 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID NIFGEN_ATTR_ ANALOG_PATH value The Analog Path value for the current ite...

Страница 85: ...ll niFgen_Set AttributeViReal64 using the following parameters vi The session handle returned from niFgen_InitExtCal channelName 0 attributeID NIFGEN_ ATTR_PRE_AMPLIFIER_ ATTENUATION value The Pre Amp...

Страница 86: ...for each iteration in Table 10 LabVIEW Block Diagram C C Function Call Call niFgen_Initiate Generation using the following parameter vi The session handle returned from niFgen_InitExtCal Table 11 Fre...

Страница 87: ...b for each frequency in Table 11 12 Abort waveform generation by calling the niFgen Abort Generation VI LabVIEW Block Diagram C C Function Call Call niFgen_Set AttributeViReal64 using the following pa...

Страница 88: ...ters vi The session handle returned from niFgen_InitExtCal frequenciesArray An array of the frequencies from Table 11 configuration The Current Configuration value for the current iteration from Table...

Страница 89: ...niFgen_InitExtCal action If the external adjustment procedure completed without any errors use NIFGEN_VAL_EXT_CAL_ COMMIT This function then stores the new calibration constants updated calibration d...

Страница 90: ...onnector to the frequency counter 2 Open an NI FGEN external calibration session by calling the niFgen Init Ext Cal VI 3 Initialize oscillator frequency calibration by calling the niFgen Initialize Os...

Страница 91: ...waveform This value is the first measured frequency that is used in step 7b LabVIEW Block Diagram C C Function Call Call niFgen_ ConfigureStandard Waveform using the following parameters vi The sessio...

Страница 92: ...Abort Generation VI b Adjust the oscillator frequency by calling the niFgen Cal Adjust Oscillator Frequency VI LabVIEW Block Diagram C C Function Call Call niFgen_Abort Generation using the following...

Страница 93: ...he difference between the measured frequency and the desired frequency 10 MHz is less than or equal to the tolerance 4 5 ppm 8 Abort waveform generation by calling the niFgen Abort Generation VI LabVI...

Страница 94: ...nitExtCal action If the external adjustment procedure completed without any errors use NIFGEN_VAL_EXT_CAL_ COMMIT This function stores the new calibration constants updated calibration dates updated c...

Страница 95: ...cations for a full calibration interval two years For this reason you must verify against the calibration test limits when performing verification after adjustment Published specification values are l...

Страница 96: ...complete calibration procedure you verify that the output error falls within the calibration test limits Figure 4 shows the programming flow for complete calibration Figure 4 Complete Calibration Pro...

Страница 97: ...ffectively resetting the calibration interval without actually performing an adjustment Refer to the Updating the Calibration Date and Temperature section for more information about this process If al...

Страница 98: ...ts Calibration Test Limits Meets Published Specifications Update Calibration Dates and Temperatures Without Adjusting Results Within Published Specs Adjustment Optional Adjust Anyway Adjust Cal Dates...

Страница 99: ...ng steps 1 Launch MAX 2 Navigate to My System Devices and Interfaces NI DAQmx Devices and select the device from which you want to retrieve information 3 Select the Calibration Tab on the lower right...

Страница 100: ...Cal Last Temp niFgen Read Current Temp niFgen Get Ext Cal Last Date and Time niFgen Get Ext Cal Last Temp niFgen Get Cal User Defined Info niFgen Set Cal User Defined Info niFgen Change Ext Cal Passw...

Страница 101: ...nal Instruments also has offices located around the world to help address your support needs For telephone support in the United States create your service request at ni com support and follow the cal...

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