Concepts | Technologies | Datas exchange interfaces
In this rubric, you will find basic informations for a control engineer, about instrumentation, sensors, data acquisition and measure processing, technologies ...
See also : Instrumentation & Measurement buses | Control & control loops
National Instruments™ | Michel Hubin | Documentation
Michel Hubin is a former scientific in CNRS. He presents here a (very) complete and useful course about measurement, sensors, data acquisition, signal conditionning, data processing ... (Which represents more than 580 pages)
The 3000 pages and more of this site have been written in french "only". For this reason it is a shame if you do not understand french writing, because it is very dificult to find such a complete and interesting site published in english (in other words, until now I have not been able to find such one, excepted the National Instrument's web site with a different style).
According to the interest of this site, these links (in this section and below) stay in this page just for the benefit of the eventual visitors who can read french enough.
NOTE : For your first visit on the Michel Hubin's web site
While you are first visiting the Michel Hubin's web site, the author wishes (hardly !) that you read attentively the introduction at the top of the home page , then the "browsing", "motivation" & "emailing" sections, before accessing to the various rubrics, in the purpose of "not to avoid the essential".
See also the following rubric : Sensors technologies
Michel Hubin proposes also an impressive base of over 780 pages about physics and electronics fundamental, including boolean and sequential logic, signal transmission, signal treatment, optic fibers, electrotechnic ...
National Instrument™ | Sensorland | Michel Hubin | Flow measurement | Level measurement | RFID | Temperatures
"The online information centre for sensing and measurement"
This site is french written "only" - for further explanation, please see this note above.
If you are first visiting the Michel Hubin's web site, please see this note above.
Flow measurement (generalities) | Ultrasonics flow measurement
The KROHNE company provides a very interesting didactic document about the ultrasonic flow measurement for industrial applications .
Its designer - the doctor Friedrich HOFMANN - tackles here the following :
Radar technology for level gauging
In a very detailed didactic document, the Krohne company presents the technical basis of the radar technology for level measurement .
Doctor Detlef BRUMBI - its designer - tackles here the following items :
| RFID Handbook | www.palowireless.com | RFID exchange | AIM | RFID journal | RFID forums | Other RFID resources |
The RFID (Radio Frequency IDentification) technology is used for tens of years in the industry.
See also in this page : National Intrument™ | Michel Hubin
FDT | Pactware
FDT is a standard interface to exchange datas between measuring devices, communication channels and systems.
The equipment manufacturer provides a "device DTM" - a file which describes the equipment - which is aproximately a software driver allowing a "FDT application" to exchange datas through a communication network.
(For instance, the application could be a software used to setup an instrumentation device or / a software used to get diagnostic datas such as Pactware. This application must be FDT compliant to recognize the datas exchanged. The fieldbus manufacturer must provide a "communication DTM" which describes the protocol, the datas structure and how to exchange the datas.)
The main advantage to use a standard interface is to let the user free to choose the devices he wants, that is measuring devices, communication interfaces and the system to use. Thus, the user is independant according to the suppliers.
You can get more information here :
PACTWARE is a software used to setup field measuring devices and to get diagnostic datas from them. It is manufacturer independant and FDT technology compliant, thus it can work with various devices and fieldbuses used in instrumentation through the "device DTM" and the "communication DTM" provided by the suppliers.
Last updated : June 3rd, 2010.
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