National Instruments NI-9218 Channel Analogue Input Module
Specifications
- Khoom npe: NI-9218
- Connector Hom: LEMO thiab DSUB
- Kev Ntsuas Hom: Ua-hauv kev txhawb nqa rau ntau hom
- Sensor Excitation: Yeem 12V excitation
Hom Connector
NI-9218 muaj ntau tshaj ib hom connector: NI-9218 nrog LEMO thiab NI-9218 nrog DSUB. Tshwj tsis yog hom connector tau teev tseg, NI-9218 hais txog ob hom connector.
NI-9218 pinout
Teeb liab los ntawm Kev Ntsuas Hom
| Hom | Pin
1 |
|||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| ± 16V | EX + ib | — | AI-, EX- | — | — | AI + | — | — | — | — |
| ± 65 mV | EX + 2 [2] | — | EX- [2] | — | — | AI + | AI- 3 | — | — | — |
| Puv-
Choj |
EX + ib [2] | — | EX- [2] | RS + | RS- | AI + | AI- | SC | SC | — |
| IEPE | — | AI + | AI- | — | — | — | — | — | — | — |
| TEDS | — | Txa+ 4 | T- | — | — | — | — | — | — | Txa+ 5 |
Cov lus piav qhia
| Teeb liab | Kev piav qhia |
| AI + | Zoo analogue input signal txuas |
| AI- | Tsis zoo analogue input signal txuas |
| EX + ib | Zoo sensor excitation kev twb kev txuas |
| EX- | Tsis zoo sensor excitation kev twb kev txuas |
| RS + | Qhov zoo ntawm qhov chaw taws teeb pom kev sib txuas |
| RS- | Negative tej thaj chaw deb sensing kev twb kev txuas |
| SC | Shunt calibration kev twb kev txuas |
| T+ | TEDS data connection |
| T- | TEDS rov qab txuas |
Kev ntsuas hom
NI-9218 muab kev txhawb nqa rau cov hom kev ntsuas hauv qab no.
- ± 16V
- ± 65 mV
- Full-Bridge
- IEPE
- NI-9218 nrog LEMO nkaus xwb.
- Optional sensor excitation.
- Tie rau tus pin 3.
- TEDS Class 1 data connection.
- TEDS Class 2 data connection.
Tswv yim NI pom zoo kom siv NI-9982 ntsia hlau-terminal adapter thaum siv hom kev ntsuas built-in ntawm NI-9218.
NI-9218 muab kev txhawb nqa ntxiv rau hom ntsuas hauv qab no thaum siv lub ntsuas ntsuas tshwj xeeb adapter.
- ± 20 mA, xav tau NI-9983
- ± 60 V, xav tau NI-9987
- Ib nrab-Bridge xav tau NI-9986
- Quarter-Bridge xav tau NI-9984 (120 Ω) lossis NI-9985 (350 Ω)
± 16V Kev sib txuas
NI-9218 muab kev xaiv 12 V sensor excitation. Txhawm rau siv 12 V excitation, txuas 9 VDC rau 30 VDC fais fab mov rau Vsup, txuas cov excitation terminals ntawm koj lub sensor rau EX + / EX-, thiab pab kom 12 V excitation hauv koj software.
Related reference:
- NI-9982 ± 16 V Connection Pinout
± 65 mV kev sib txuas
- Koj yuav tsum txuas AI rau EX- ntawm NI-9218.
- NI-9218 muab kev xaiv 12 V sensor excitation. Txhawm rau siv 12 V excitation, txuas 9 VDC rau 30 VDC fais fab mov rau Vsup, txuas cov excitation terminals ntawm koj lub sensor rau EX + / EX-, thiab pab kom 12 V excitation hauv koj software.
Muaj feem cuam tshuam
- NI-9982 ± 65 mV Kev sib txuas Pinout
Tag Nrho Kev Txuas Txuas Txuas
- NI-9218 muab 2 V excitation rau loads ≥120 Ω lossis 3.3 V excitation rau loads ≥350 Ω.
- NI-9218 muab kev xaiv kev sib txuas rau tej thaj chaw deb sensing (RS) thiab shunt calibration (SC). Chaw taws teeb sensing kho kom raug rau cov kev ua yuam kev hauv excitation leads, thiab shunt calibration corrects rau qhov yuam kev tshwm sim los ntawm tsis kam nyob rau hauv ib ceg ntawm tus choj.
Related reference:
- NI-9982 Tag Nrho Kev Txuas Txuas Pinout
IEPE Connections
- NI-9218 muab qhov zoo siab tam sim no rau txhua qhov channel uas muaj zog IEPE sensors.
- AI + muab DC excitation, thiab AI- muab txoj kev zoo siab rov qab los.
Related reference:
- NI-9982 IEPE Txuas Pinout
± 20 mA kev sib txuas
- Txuas ± 20 mA cov cim qhia yuav tsum muaj NI-9983.
- NI-9218 muab kev xaiv 12 V sensor excitation. Txhawm rau siv 12 V excitation, txuas 9 VDC rau 30 VDC fais fab mov rau Vsup, txuas cov excitation terminals ntawm koj lub sensor rau EX + / EX-, thiab pab kom 12 V excitation hauv koj software.
Txuas lub voj-powered 2-xaim lossis 3-xaim transducer yuav tsum tau ntxiv 20 kΩ resistor ntawm AI- thiab Ex-.
Related reference:
- NI-9983 pinout
± 60V Kev sib txuas
Txuas ± 60 V teeb liab yuav tsum tau NI-9987.
Related reference:
- NI-9987 pinout
Ib nrab-Bridge kev sib txuas
- Txuas ib nrab choj yuav tsum tau NI-9986.
- NI-9218 muab 2 V excitation rau ib nrab txuas ntawm ≥240 Ω tag nrho lossis 3.3 V excitation rau ib nrab txuas ntawm ≥700 Ω tag nrho.
- NI-9218 muab kev xaiv kev sib txuas rau tej thaj chaw deb sensing (RS) thiab shunt calibration (SC). Chaw taws teeb sensing kho kom raug rau cov kev ua yuam kev hauv excitation leads, thiab shunt calibration corrects rau qhov yuam kev tshwm sim los ntawm tsis kam nyob rau hauv ib ceg ntawm tus choj.
Related reference:
- NI-9986 pinout
Quarter-Bridge kev sib txuas
- Txuas 120 Ω peb lub hlis twg txuas hniav yuav tsum tau NI-9984.
- Txuas 350 Ω peb lub hlis twg txuas hniav yuav tsum tau NI-9985.
Tswv yim NI-pom zoo 2 V excitation thaum siv NI-9984 nrog 120 Ω quarter txuas txuas thiab 3.3 V excitation thaum siv NI-9985 nrog 350 Ω quarter txuas.
Related reference:
- NI-9984/9985 Pinout
TEDS Connections
Yog xav paub ntxiv txog TEDS, mus saib ni.com/info thiab nkag mus rau Info Code rdteds.
TEDS txhawb nqa
- TEDS Class 1 sensors muab qhov sib txuas rau kev xa cov ntaub ntawv los ntawm cov sensors. NI-9218 nrog LEMO, NI-9218 nrog DSUB, NI-9982L, NI-9982D, NI-9982F txhawb TEDS Class 1 sensors.
- TEDS Class 2 sensors muab qhov sib txuas rau kev xa cov ntaub ntawv los ntawm TEDS-enabled sensors. NI-9218 nrog LEMO, NI-9982L, NI-9983L, NI-9984L, NI-9985L, thiab NI-9986L txhawb TEDS Class 2 sensors.
Vsup Daisy Chain Topology
NI-9218 nrog LEMO muab plaub tus pins ntawm Vsup connector rau daisy chaining.
NI-9218 Cov Lus Qhia Txog Kev Sib Txuas
Xyuas kom tseeb tias cov cuab yeej koj txuas rau NI-9218 yog sib xws nrog cov lus qhia tshwj xeeb.
Kev Cai Cabling Kev Cai
- Ua raws li cov lus qhia hauv qab no thaum siv NI-9988 solder khob connector adapter lossis LEMO crimp connector (784162-01) los tsim cov kev cai cables.
- Siv ib tug shielded cable rau tag nrho cov teeb liab.
- Txuas lub cable thaiv lub ntiaj teb.
- Siv twisted-pair txuas rau AI + / AI- thiab RS + / RS- cov cim kom ua tiav EMC kev ua tau zoo.
NI-9218 Block Diagram
- Ob 24-ntsis analogue-to-digital converters (ADCs) ib txhij sampob lub AI channel.
- NI-9218 muab kev cais tawm-rau-channel.
- NI-9218 reconfigures lub teeb liab txias rau txhua hom kev ntsuas.
- NI-9218 muab kev zoo siab rau IEPE thiab kev ntsuas kev ua tiav choj.
- NI-9218 tuaj yeem muab kev xaiv 12 V sensor excitation rau ± 16 V, ± 65 mV, thiab ± 20 mA ntsuas hom.
± 16 V thiab ± 65 mV teeb liab txias
Input signals ntawm txhua channel yog buffered, conditioned, thiab ces sampcoj los ntawm ADC.
Full-Bridge Signal Conditioning
- Cov analogue input txuas kev nkag siab thiab tom qab ntawd amplify cov teeb liab analogue tuaj.
- Cov kev sib txuas excitation muab sib txawv choj-excitation voltage.
- Chaw taws teeb sensing tsis tu ncua thiab tau kho rau cov hlau lead-hlau induced excitation voltage poob thaum siv RS kev sib txuas.
- Shunt calibration tuaj yeem siv los kho rau cov hlau lead-hlau-induced desensitisation ntawm tus choj.
IEPE Kev Kho Kom Zoo
- Lub teeb liab analogue tau xa mus rau qhov chaw nyob ib leeg.
- Txhua channel tau teeb tsa rau AC txuas nrog IEPE tam sim no.
- Txhua channel muab TEDS Class 1 interface.
± 20 mA teeb liab txias
NI-9983 muab lub shunt tam sim no rau cov khoom analogue teeb liab.
± 60 V teeb liab txias
NI-9987 muab lub attenuator rau cov khoom analogue teeb liab.
Ib nrab-Bridge Signal Conditioning
- NI-9886 muab ib nrab-choj tiav resistors rau cov khoom siv analogue.
- Koj yuav tsum txuas AI +, EX +, thiab EX-.
- RS + thiab RS- kev sib txuas yog xaiv tau.
- Koj tsis tas yuav txuas AI teeb liab vim nws txuas nrog sab hauv.
Quarter-Bridge Mode Conditioning
NI-9984 thiab NI-9985 muab lub quarter-bridge tiav resistor thiab ib nrab-bridge tiav resistor.
Lim
NI-9218 siv kev sib xyaw ua ke ntawm analogue thiab digital filtering los muab qhov tseeb sawv cev ntawm cov teeb liab hauv-band thaum tsis lees txais cov teeb liab tawm. Cov lim dej cais tawm ntawm cov teeb liab raws li qhov ntau zaus, lossis bandwidth, ntawm lub teeb liab. Peb qhov tseem ceeb bandwidth yuav tsum xav txog yog passband, stopband, thiab alias-free bandwidth.
NI-9218 sawv cev rau cov teeb liab nyob rau hauv lub passband, raws li quantified feem ntau los ntawm passband ripple thiab theem nonlinearity. Tag nrho cov teeb liab uas tshwm sim nyob rau hauv lub alias-dawb bandwidth yog ib tug unaliased teeb liab los yog cov teeb liab uas tau raug lim los ntawm yam tsawg kawg nkaus tus nqi ntawm lub stopband rejection.
Passband
Cov cim nyob rau hauv lub passband muaj zaus-nyob ntawm qhov nce lossis attenuation. Qhov me me ntawm qhov sib txawv ntawm qhov nce nrog rau zaus yog hu ua passband flatness. Cov ntxaij lim dej digital ntawm NI-9218 kho qhov ntau zaus ntawm passband kom phim cov ntaub ntawv tus nqi. Yog li ntawd, tus nqi nce los yog attenuation ntawm ib zaus yog nyob ntawm cov ntaub ntawv tus nqi.
Stopband
Lub lim ho txo qis tag nrho cov cim saum toj kawg nkaus ntawm lub sijhawm nres. Lub hom phiaj tseem ceeb ntawm lub lim yog los tiv thaiv aliasing. Yog li ntawd, lub stopband zaus scales precisely nrog cov ntaub ntawv tus nqi. Qhov kev tsis lees txais kev tso tseg yog qhov tsawg kawg nkaus ntawm kev txo qis siv los ntawm lub lim rau tag nrho cov cim nrog ntau zaus hauv qhov nres.
Alias-dawb Bandwidth
Txhua lub teeb liab uas tshwm sim nyob rau hauv lub alias-dawb bandwidth ntawm NI-9218 tsis yog ib qho aliased artefact ntawm cov teeb liab ntawm ntau zaus. Lub alias-dawb bandwidth yog txhais los ntawm lub peev xwm ntawm lub lim kom tsis lees paub ntau zaus saum lub sijhawm nres, thiab nws yog sib npaug rau cov ntaub ntawv tus nqi rho tawm cov zaus nres.
Qhib lub ntsuas ntsuas Adapter
Yuav Ua Li Cas
- Xauv lub ntsuas adapter vaj tsev / npog.
- Xaub lub ntsuas adapter vaj tsev / npog kom nkag mus rau cov ntsia hlau terminals.
Mounting NI-998xD / 998xL
Yuav siv dab tsi
- NI-998xD lossis NI-998xL Measurement Adapter
- M4 los yog Number 8 Screw
- Screwdriver
Yuav Ua Li Cas
Mount lub ntsuas adapter mus rau ib qho chaw tiaj tus siv lub qhov mounting ntawm qhov ntsuas adapter thiab cov ntsia hlau.
Ntsuas Adapter Grounding
Cov terminals hauv av ntawm qhov ntsuas ntsuas tau txuas nrog lub chassis hauv av thaum ntsuas qhov ntsuas tau txuas nrog NI-9218 thiab NI-9218 tau teeb tsa hauv lub chassis.
Ntsuas Adapter Pinouts
Cov ntu hauv qab no suav nrog pinouts rau NI-9218 ntsuas adapters.
NI-9982 ± 16 V Connection Pinout
Pins 3a thiab 3b yog khi ua ke ntawm NI-9982.
Related reference:
- ± 16V Kev sib txuas
NI-9982 ± 65 mV Kev sib txuas Pinout
Pins 3a thiab 3b yog khi ua ke ntawm NI-9982.
Related reference:
- ± 65 mV kev sib txuas
NI-9982 Tag Nrho Kev Txuas Txuas Pinout
Pins 3a thiab 3b yog khi ua ke ntawm NI-9982.
Related reference:
- Tag Nrho Kev Txuas Txuas Txuas
NI-9982 IEPE Txuas Pinout
Pins 3a thiab 3b yog khi ua ke ntawm NI-9982.
Related reference:
- IEPE Connections
NI-9983 pinout
Pins 3a thiab 3b yog khi ua ke ntawm NI-9983.
Related reference:
- ± 20 mA kev sib txuas
NI-9984/9985 Pinout
Related reference:
- Quarter-Bridge kev sib txuas
NI-9986 pinout
Pins 3a thiab 3b yog khi ua ke ntawm NI-9986.
Related reference:
- Ib nrab-Bridge kev sib txuas
NI-9987 pinout
Pins 3a thiab 3b yog khi ua ke ntawm NI-9987.
Related reference:
- ± 60V Kev sib txuas
FAQ
Cov ntaub ntawv / Cov ntaub ntawv
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National Instruments NI-9218 Channel Analog Input Module [ua pdf] Phau ntawv qhia NI-9218 nrog LEMO, NI-9218 nrog DSUB, NI-9218 Channel Analog Input Module, NI-9218, Channel Analog Input Module, Analog Input Module, Input Module |