Device and method for determining a characteristic of a path formed by consecutive positions of a triaxial accelerometer rigidly connected to a mobile element

US9068842B2 · kind B2 · utility

Assignees

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
• MOVEA · FR

Inventors

• Joe Youssef · Santa Clara, US
• Christelle Godin · Grenoble, FR
• Benoit Denis · Grenoble, FR

Key dates

• Filing date: Oct 20, 2009
• Grant date: Jun 30, 2015
• Expiry date: Mar 19, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01C21/1654
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Device for determining a characteristic of a trajectory formed of successive positions of a triaxial accelerometer (3A) rigidly tied to a mobile element (EM), between a first instant of immobility (t0) and a second instant of immobility (tn) of the triaxial accelerometer (3A), subsequent to said first instant of immobility (t0), said device comprising, furthermore, a triaxial additional sensor for measuring a vector of a substantially constant vector field between said first and second instants of immobility (t0,tn), in a fixed global reference frame (GE) tied to the terrestrial reference frame, said additional sensor being rigidly tied to said mobile element (EM) and fixed in the reference frame of the accelerometer (3A), and control means (CMD).