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IVI (Interchangeable Virtual Instrumentation) is a specification of instrument driver published by the IVI Foundation, formed by the biggest names in the instrumentation as Agilent, National Instruments, Rohde & Schwarz, Aeroflex, Tektronix, Teradyne, Pickering and other.
This specification defined instument classes (multimeter, oscilloscope, power supply, ...). All drivers in the same class have the same exported functions. This ensures instruments compatibility and interchangeability: measurement software is linked to the driver class that needle to the specific driver of the used instrument.
Example: I have a test application which measures voltage with a multimeter. My software calls the driver of the multimeter class. IVI refers to the specific driver for the X model from Agilent. Thus, we can change this multimeter by the Y model from Agilent or the Z model from Tektronix with a simple configuration without modifying the software (for since we have installed the IVI driver of these three instruments).
List of instrument classes defined by IVI:
Digital multimeter (DMM) Oscilloscope Arbitrary waveform/function generator DC power supply AC power supply Switch Power meter Spectrum analyzer RF signal generator Upconverter Downconverter Digitizer Counter/timer Some specific instruments do not fall into this classification. In this case it is possible to create a new class.LabWindows/CVI provides wizards for developing drivers and adding a new class.
IVI driver scan be called by any type of programming language. However TestStand, LabVIEW, and Measurement Studio can offer all the key functions in hand for their use.
Technical implementation:
Tools: C language, LabWindows/CVI, Windows. Instrumentation : GPIB, multimeter DMM, PCI switches, acquisition card with integrated frequency analyzer, DC power supply.Technical implementation:
Tools: C language, LabWindows/CVI, Windows, Access, Visual Basic, ODBC. Instrumentation: GPIB, RS-232, switches, multimeter DMM, DC power supply, temperature generator, pressure generator, barometer.Technical implementation:
Tools: C language, LabWindows/CVI, Windows, Excel to ceate reports, TestStand. Instrumentation: GPIB, RS-232, digital multimeters DMM, DAQ, DIO.Avionic calculators’ production support department (Airbus, Boeing, Bombardier, Dassault, Embraer, Saab…)
Test libraries development for TestExe, a test sequencer. Tools libraries development. Development of a test sequencer under TestStand interfaced with a data base. Development of software of test and management of production of downloadable diskettes on calculator. Development of downloadable software of basic creation of data hard calculator. Calculators test software maintenance. Design of software architectures for the semi-automatization of test bench.Technical implementation:
Tools: C , LabWindows/CVI, Visual C ++, TestStand, TestExe, Access, Excel, ODBC Instrumentation: ATHENA 7000 bench : VXI chassis (switches, multimeter DMM, acquisition DAQ, signals generator, ARINC, RS-422)Technical implementation:
Tools: C, LabWindows/CVI Instrumentation: VXI chassis (switches, multimeter DMM, acquisition DAQ card, signals generator), CAN bus and SIS (I2C bus)Technical implementation:
Tools: C, TestStand, Labwindows/CVI, Excel. Instrumentation: GPIB, audio generator AM/FM, audio analyser, matrix, multimeter, oscilloscope, I2C busImplemented technique:
Tools: C language, TestStand, Labwindows/CVI, Instrumentation: PXI chassis, switches, multimeter DMM, DIO card, MXi3, GPIB, PCI cards (VAN bus and I2C bus), GPIB (audio generator AM/FM Panasonic, audio analyzer ROHDE & SCHWARZ, DC power supply)- DSC
- PCI
- test bench
- OPC
- communication bus
- windows mobile
- GPIB
- pascal
- profibus
- C sharp
- DIO
- unix
- SCPI
- PLC
- switches
- teststand
- Pocket PC
- excel
- linux
- oscilloscope
- PAC
- bluetooth
- labwindows cvi
- labview
- serial RS
- UHF
- ARINC
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- embedded
- camera
- testexec
- visual basic
- protocol AK
- audio analyzer
- modbus
- C language
- windev
- fieldpoint
- waveform generator
- I2C
- vision
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- citrix
- multimeter
- programmable logic controller
- measurement studio
- real time
- formation
- IVI driver
- CAN
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- qbasic
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