Industrial and Scientific Computing, Validation and Automation
LabVIEW, TestStand, LabWindows/CVI

Test bench and Measurement freelance Engineer

SCPI (Standard Commands for Programmable Instruments) is a standard that defines a language for communicating with instruments based on messages. The majority of the GPIB instruments use the SCPI but also RS-232, Ethernet, VXI, PXI may use it. Several measurement instrument manufacturers have adopted this standard as HP / Agilent for example, allowing some communication uniformity between several devices.

Some examples of SCPI commands:

Instrument identification querry: *IDN? Instrument reset: RST Measure querry: MES?

PXI, for PCI eXtensions for Instrumentation, is a bus designed for instrumentation, test and measurement. It derives from the Compact PCI bus, with which it remains compatible, while adding some signals such as clocks and triggers to synchronize multiple cards.

It is used in 3U card size (10 cm) high chassis, 8 to 18-slot card.

Migration of a transportable VXI bench which measures partial discharges of power transformers, to a compact and portable PXI / compact PCI bench. Drivers development.

Technical implementation:

Tools: Labwindows/CVI Instrumentation: portable PXI/Compact PCI chassis with high voltage acquisition card

Realization of 4 car radio test benches of the Peugeot 206 Project leader (4 developers) Subcontractors choice and management Import / Export (incorterm)

Implemented 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)

Development: C++ to LabVIEW migration of an components and electronic cards aging measurement software.

Technical implementation:

Tools: LabVIEW Hardware: Sefelec MegaOhmMeter, switch cards in compact PCI chassis  linked to the laptop by a GPIB-USB gateway. Training: Instructor for National Instruments products:  LabVIEW, LabWindows/CVI, TestStand, Measurement Studio .NET (with Visual Studio C++, C# and Visual Basic)

Development of software components to edit and configure mathematical models in aim of simulating environment for radar, civil and military, test and qualification.

Technical implementation:

Tools: DLL development with LabVIEW and integration with Visual Studio C++ and C#

Hardware:Measurement and test / validation solutions Computing languages and softwareC, Language G, C++, C#, Visual Basic, Fortran, Java, SQL, PHP, JSP, Pascal ObjectLabVIEW, TestStand, LabWindows/CVI, Visual Studio, Delphi, MySQLMethod: UML, RUP, RAD Protocols: GPIB, VXI, PXI , ARINC 429, RS (232, 422), TCP/IP, CAN, I2C, VAN, BlueTooth, WIFI, UHF Languages: English, Spanish, French, Portuguese EXPERIENCE

The aim of this test bench is to validate electronic measurements and audio signals. The system must be enough flexible to permit the test of several models of car radio.

Radio car validation bench