Objective
SIEMENS has developed, in a BRITE-EURAM project, a copper leadframe sensor sensitive to direction and not to the intensity of the magnetic field, in a range between 5-10KA/m. This means that signal output of this sensor is independent of the sensor position relative to the magnet in lateral or axial direction in the range of several millimetres.
NACESA a Spanish manufacturer of potentiometers contacted SIEMENS in order to incorporate this kind of GMR sensor technology into its product.
NACESA has concluded that a GMR sensor would be the ideal INNOVATION to be incorporated in potentiometers with a high exigency of long-life (>108 cycles) in hard working conditions such of vibrations and accelerations.
The advantages of GMR potentiometers in comparison with contact and MR non-contact potentiometers are: - In comparison with contact potentiometers: very long duration (they overcome easily 108 cycles) due to non-mechanical wearing features.
- In comparison with MR non-contact potentiometers: Wider tolerance for relative position between magnet and sensor, which means a high vibration resistance and longer duration; a MR potentiometer with a similar vibration resistance needs a very high mechanical accuracy, which means higher costs.
The objective of the project is to validate GMR technology and the following actions will be carried out by the partners: - SIEMENS will transfer the latest GMR sensor technology to NACESA. - NACESA will integrate GMR sensor technology in its potentiometers for some automobile applications and analysing the most interesting and feasible (from both economical and technical points of view) applications. - Two additional partners, VALEO and MANNNESMANN VDO, will l participate as end-users in order to verify that GMR potentiometers are adequate to be incorporated to their automobile applications. - A strong dissemination phase.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering sensors
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Coordinator
31500 TUDELA
Spain
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