Optical encoders
Codechamp - L entreprise

Top-Level Know-How...

The performance of our engineering and design department relies on the abilities of a specialised team whose principles are: technical reactivity, continuous innovation, flexibility and the formulation of competitive solutions. Due to the flexibility of our organisation, CODECHAMP is offering customers a close partnership in order to provide the best technical and cost-effective solutions. Investments in the production equipment and human resources are optimized to ensure the highest standards of Quality Control.

Technological advancements

1976 : First encoder manufactured by SEMIP (precision potentiometers) : 13 bit encoder for Mirage 2000 radar.
Web site : www.semip.com.
1980 : Setting up of CODECHAMP at Champagnat
1981 : First absolute encoder on board on a satellite
1984 : Lightweight and flat hollow shaft 14 bit encoder for new radar on Mirage 2000
1985 : Hollow shaft 18 bit encoder for ground antenna to control the TDF1 satellite
1986 : Absolute and multiturn encoders for turrets on TIGRE helicopter
1990 : 23 bit encoder for PRONAOS telescope
1992 : CNES qualification for a 21 bit absolute encoder with cold redundancy
1994 : Encoder size 11 (diam. 28 mm) for missile guidance system
21 bit encoder for SUMER instrument on SOHO satellite
1996 : Feasibility of an incremental encoder operating at + 200°C
Conclusive test of an absolute encoder operating at -180°C
1999 : CANARIS encoder qualification for nuclear application, 15 Mrad
Miniaturized encoders: size 9 (diam. 23 mm), 16 bit and size 15 (diam. 38 mm), 21 bit for missile applications
1998 to 2000 Technology Improvements for :
  • Pancake encoder
  • High resolution
  • Miniaturization
Development of a 26 bit encoder for Space application
2000 : Setting up of a new manufacturing plant
2003 to 2005 Development of a new ASIC to improve the reading principle and miniaturization
2005 : Qualification of the CANARIS encoder, nuclear application > 100 Mrad
Development of an encoder for civil aeronautics application
Development of encoders with Field Bus outputs
2006 to 2007 Developments and qualifications of high resolution space encoders used for Pléiades and Terrasar programs
2008 to 2009 Design of 2 new ASICs
Encoder FPCOA15-01 reaches a resolution of 23 bits
Development of polarimetric encoder with CNES support
Development of encoder size 08 (diam.19mm) of 16 bits resolution.
Hardening of space encoders with CNES leading to the design of new specific components
2010 : Development of a pancake encoder size 13 (diam.33mm), hollow shaft, very thin, resolution 19 bits
Production of high quantities of low-cost industrial encoders
Development and qualification of encoder FPCOA13-01 (diam.33.5mm) with 23 bits resolution
Qualification of CANARIS Encoder with AREVA for nuclear civil activity up to 200Mrad
Deposit of an invention patent CODECHAMP-CNES in the frame of the polarimetric encoder
2011 to 2012 : Development and qualification of space encoders used for the CSO program of the CNES
Development of a new ASIC of military quality for the missiles guidance applications.
2013 to 2014 : Development and qualification of space encoders used for the MTG program of the ESA.
Development with the CNES of a new ASIC of spatial quality for future programs.
Development and qualification of the encoder FPCOA12-01 (29.85mm) of 23-bit resolution with an accuracy of + / - 10''