CERSA MCI : a story of passionate engineers !


I nitially created to meet the automation and metrology needs of high-tech industries (aeronautics, military, etc.), CERSA quickly expanded its activities to continuous production industries (steel, plastic, wire, cable, etc.) with high-performance, non-contact optical technology.

The demand for faster production and smaller dimensions, zero defects and material savings, have led us to develop high-performance metrology techniques at very high frequencies to insure full in-line quality certification.

Fine wire specialist

As earlys as 1986, we developped the first Laser Diffraction Sensor (LDS) for the in-line measurement of fine wire diameters. These instruments, appreciated worldwide both in production and in the laboratory, are still an international reference and one of CERSA's flagship products.

In-line measuring instruments to fully certify optical fiber

In the early 1990's, in close cooperation with optical fiber producers, CERSA developed the first Laser Interferometric Sensor for glass fiber (LIS-Glass). The great success of this instrument motivated us to develop other complementary devices : the Non Contact Tension Measurement (NCTM) and then the 5-axis Coating Measurement (CM5) instruments.

This line of instruments, associated with our CIM software (CERSA Instrument Manager) for the acquisition, display and recording of measurements, is now used worldwide by the most important producers of optical telecommunication fibers, which makes CERSA a world leader in this field. Always imitated, never matched !

What's next ?

The extrusion and wire drawing industries have been asking us for a long time for instruments that better meet their quality requirements. Extruded tubes, even multilayer tubes, which must be measured with precision (material cost) and speed (zero defects) require high-performance instruments.

Our new range of LPS-H measuring instruments for larger diameter wires and cables, as well as our SQM instrument for the detection of surface defects on fine wires, plating defects (gold, silver, nickel, etc.) are opening up new perspectives and new markets for CERSA in the coming years.


CERSA-MCI : Ahead together !


Jean-François FARDEAU

Founder and President of CERSA MCI, Founder and President of BI group.

Founder and President of CERSA MCI and BI group.


General Manager

Involved for 18 years in CERSA-MCI, I oversee Development as General Manager

Research & Development

R&D has been a core part of CERSA since 1981. We maintain a close working relationship with our customers to insure we're all on the same headings, and that our R&D team works continuously on evolutions that match their needs.
3D design
Our customers can depend on our multi skilled engineer team to obtain the best available technologies. Our instruments have the most highly evolved features and superlative performances levels to meet your needs.
CERSA-MCI also offers to put its 30 years of experience to the service of customers interested in developing specific instruments or functions for their needs with shared costs.

Production activities

optic 1
dimension control 1

Bellepeire Invest. Group

bellepeire 1

In 2011, CERSA became part of the “Bellepeire Invest” BI group holding company. The baseline shareholders decided to combine the key activities of three companies: ReneR (Renewable Energy Ressources), Pont du Pâtre (organic agriculture) and CERSA-MCI (automation and measurement engineering).

In May 2016, to support our significant growth, BI group moved to a brand new facility specially designed for us.

CERSA guide lines

For more than 30 years, CERSA-MCI has been involved in training and technology research but is also concerned with preserving the natural environment.

Today, the entire BI team is aware of and committed to this essential focus. Our environemental code of ethics is as follow :


Spirit act :

  • The Earth is our unique living place, respect living conditions, we all depend on each other’s over the world.
  • Intelligence is shared over all humans, respect each other’s.
  • Difference is an enrichment.
  • We are in a chain and need to be a reliable link.
  • See, listen and learn on every things.
  • Invest in knowledge and technology mastering.
  • The right way might not be the usual way, innovate.