Calibration system for oil well sensors. This system measures the pressure and the temperature behavior of the sensors along one week to one month. All measurements are safeguarded in a data base to be analyzed and to create reports/ratios.

Oil well sensor for pressure measurement
Oil sensor example

Calibration bench for drill stem and oil sensors with Labwindows / CVI Measurement software screenshot

Hardware Technology

The system is composed of a PC computer which dialogs with oil sensors via serial bus and it is linked to a bench via GPIB bus.
The bench contains several modules :
  • Power supplies
  • Counter
  • Swithes Matix
  • Multimeter
  • Barometer
  • Pressure generator
  • Temperature generator

Software Technology

Operating software : MS Windows 2000
Measurement software : NI LabWindows/CVI
Analysis software : Visual Basic, MS ACCESS, ODBC, SQL
Report formats : MS EXCEL, PDF

How does it work ?

The measurement software controls the temperature and the pressure generated in simulated oil well. Sensors to calibrate, situated down into the oil well, send data to the measurement software. Theses data are stored in a database. At the end of the measurement campaign, recorded data available in the database are analyzed and graph reports are generated (PDF or excel reports).

What is LabVIEW?

LabVIEW LabVIEW is a development environment specialized in industrial and scientific applications. Its uniqueness is that it relies on the G language, created by National Instruments, which is fully graphical. It can create complex software, while facilitating the programming and thus reduce development time. Through its library of functions for data acquisition, instrumentation, analysis of mathematical measures, but also through the rapid creation of GUIs and coding simplified, the engineer has more time to focus on specific functions of the instrumentation communication and measurement analysis.

LabVIEW is particularly suitable for developing control, supervision, test and measurement systems.

What is LabWindows/CVI?

LabWindows/CVI LabWindows is a development environment in C language for the implementation of test systems, measurement and instrumentation. Thus, it is possible to enjoy both the power and precision of the C language but also libraries of functions for instrumentation and signal processing from National Instruments.

With LabWindows / CVI, you can develop:

  • software for Windows (exe) or UNIX Linux,
  • libraries (DLL, Active X,. NET),
  • instrument drivers,
  • on embedded targets,
  • on real-time target.

What is Measurement Studio

Measurement Studio pour Visual Studio C++, C# et Visual Basic These are libraries of graphical controls and functions for the rapid development of industrial or laboratory solutions containing .NET technology used directly in Visual Studio, to have power tools National Instruments software and instrumentation functions for C++ , C# or Visual Basic.
Read more...

What is TestStand

TestStandTestStand is a instruction sequences engine and a development environment for creating a test sequencer evolved several common test for different products. We have a generic software that loads, as the test product, sequences specifying actions, tests and tolerances, and components (such as DLLs) for communication with the hardware.