Sextant Avionique

Andre Migeon

Pierre Giroud

Pierre Guillemin

Sylvie Pedraza-Ramos

Electromagnetic accelerometer

An electromagnetic accelerometer includes a moving mass suspended to a peripheral frame and associated with stress gauges forming sensors for detecting the displacement of the moving mass which supports a coil, and a permanent magnet which is associated with a magnetic circuit formed by two pole pieces defining two air-gaps for channeling the magnetic field of the magnet. The moving mass includes a central recess having a surface at least equal to the surface of a free extremity of a first pole piece of the magnetic circuit and forming a shoulder for receiving the coil, the free extremity of the shoulder leading inside the air-gaps.

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Barcelonne, France

Andre Migeon