Le Bastard
Eve Le Bastard, Le Plessis Robinson FR
Patent application number | Description | Published |
---|---|---|
20140139820 | Methods for Measuring Fluid Flow in Subterranean Wells - A flow sensing apparatus includes a light source, at least one fiber Bragg grating and at least one optical fiber. The apparatus may be inserted into a flowing fluid stream, and the fiber Bragg grating detects the vortices of the Von Karman street in the wake of the apparatus. The fiber Bragg grating reflects light emitted from the light source, and the spectral nature of the reflected light provides information concerning the fluid velocity in the flowing stream. | 05-22-2014 |
Jean Le Bastard, Versailles FR
Patent application number | Description | Published |
---|---|---|
20140188427 | METHOD FOR EVALUATING THE VELOCITY OF A RAILWAY VEHICLE - A method for evaluating the angular velocity of a railway vehicle circulating on a track, the vehicle including an inertial unit including at least one angular velocity sensor, the method including measuring an instantaneous angular velocity provided by the sensor, determining the bias of the angular velocity measured around at least one axis, the velocity bias being taken as equal to the value of the angular velocity measured around this axis when the measured angular velocity is substantially constant for a predetermined period, and calculating the evaluated angular velocity, by subtracting from the measured angular velocity, the previously determined velocity bias. | 07-03-2014 |
Jean-Claude Le Bastard, Toulouse FR
Patent application number | Description | Published |
---|---|---|
20080236382 | ACTUATOR SERVO-CONTROL MONITORING METHOD AND DEVICE - An actuator displacement servo-control for aircraft flight controls is assisted by a hydraulic circuit, configured to deliver a hydraulic failure indication. The servo-control is generated from an actuator position indication and a position set-point indication computed by a computation unit. An alarm phase is opened on detection of a servo-control operating error and is kept open as long as the error is present. During the alarm phase it is determined whether the actuator is in blocked or divergent states. If blocked, it is determined whether the duration of the alarm phase exceeds a value T | 10-02-2008 |
20090157238 | DEVICE FOR SAFELY OPERATING A FLIGHT CONTROL ACTUATOR OF AN AIRCRAFT - The field of the invention is that of safe devices for operating the actuators of aircraft and more specifically the flight control actuators of a helicopter. The invention consists of a safe control device for commanding an actuator ( | 06-18-2009 |