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- Article: Definitions (5)
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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?This software does the automation the characterization measurements of the skin during clinical trials of pharmaceuticals and cosmetics, using more than 15 instruments usually present in this type of laboratory: corneometer, sebometer, pH-meter, thermometer, glossimeter, mexameter, colorimeter tewemeter, reviscometer, spectrocolormeter, chromameter, cutometer, torquemeter. Therefore, it makes quicker measurement through a single software tool.
Example of a samples series of and analysis, for skin elasticity study , with the clinical testing software for pharmaceuticals and cosmetics products
This system allows the study of refrigeration systems and the implementation of the thermodynamic calculations applied to refrigeration. Its uniqueness is that it is fully controllable via the Internet directly from a web browser like Internet Explorer or Firefox.
It consists of two cold rooms, each with their own evaporator but sharing the same cooling fluid R134a system (compressor, condenser ...).
The control and configuration of this system can be done in two ways:
a classic console coupled to a regulator PLC type industrial PAC (programmable automation controller) Compact FieldpointThe Compact Fieldpoint adds the possibility of remote control via the Internet, viewing the evolution curves of temperature, air and refrigerant fluid, pressure and power at various points. This allows calculating the required cooling system features such as enthalpy, entropy, Mollier diagram and performance coefficients.
Refrigeration system with control panel and circuit fluid
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: National Instruments LabVIEW, Module LabVIEW Datalogging and Supervisory Control (DSC) Harware: PLC (Siemens, Mitsubishi, Twido) with OPC, RS 232, Compact Fieldpoint, DIO, DAQI am a supervision, control, test and measurement specialist. For this reason, my work consists to conceive and develop automatic or semi-automatic systems of measurement, validation or qualification of products for industrial or scientific applications.
With my experience since 1998 in the field of test and measurement, many of my clients appreciate my analysis and advice to optimize and improve both technically and in terms of production processes and validation. Indeed, test and measurement benches are central elements that identify with precision the problems caused by a malfunction or bad process: settings of production machines, manual actions or arrangement.
TechnicsI support my expertise on the use of:
software solutions with: LabVIEW LabWindows/CVI TestStand Measurement Studio .NET material solutions containing: data acquisition card relay matrix card, DIO signal generator, DAQ oscilloscope, analyzer compatible with the following standards: PXI, PXI express, VXI GPIB, USB, FireWire PCI, PCI express, Compact PCI RS-232, RS-422, RS-485, AK protocol CAN, VAN, LIN, I2C, ARINC JobI intervene in the various phases of life of the projects:
• Study/Research/Documentation
Feasibility study Analyzes and research solution Search for materials Helps with the documentary drafting Retro-engineering (analyzes systems without documentation)• Software of tests (dregs to the material)
Development of advanced software functions Analyzes, second reading of source codes Debugging of software functions Drivers of instruments Development of simulators of instruments• Software applicatifs (not dregs directly with the material)
Complete development of software Analyzes, second reading of source codes Debugging Course of specifications of testsProject examples
I invite you to read articles detailing projects examples I have done, take a look to my experiences.
Price
To obtain the detail of the prices of my interventions and developments, please contact me by email or for telephone.
- multimeter
- UPL
- acquisition board
- profibus
- pascal
- real time
- C language
- SCPI
- labwindows cvi
- WIFI
- visual studio
- teststand
- switches
- PAC
- IVI driver
- bluetooth
- CAN
- windev
- windows mobile
- GPIB
- serial RS
- DSC
- protocol AK
- fortran
- testexec
- VAN
- PCI
- DIO
- OPC
- industrial computer
- embedded
- MXI
- programmable logic controller
- communication bus
- dot NET
- fieldpoint
- citrix
- ARINC
- excel
- I2C
- windows
- Pocket PC
- PXI
- visual basic
- labview
- VXI
- camera
- oscilloscope
- audio analyzer
- waveform generator
- measurement studio
- unix
- C sharp
- UHF
- PLC
- database
- linux
- real time embedded
- vision
- Cplusplus
- qbasic
- formation
- test bench
- modbus