Abstract: A portable apparatus for generating an induced low-frequency sinusoidal electric current in an area of the human body includes four angular magnet sectors inscribed within the same circle, centered on the same axis of rotation, and spaced angularly apart from one another. The polarity of two adjacent angular magnet sectors is opposed, and a motor for rotating at a predetermined speed the angular magnet sectors is about the axis of rotation to generate an induced sinusoidal current at a predefined frequency. Each angular magnet sector includes the same geometrical shape with an internal angular opening of 90°, an external angular opening between 20° and 50°, and two lateral edges defining a radius extending over a distance, which is between one-third and two-thirds of a distance separating the axis of rotation from the free end of the magnet sectors.

Abstract: The invention relates to a device for generating a very-low-frequency pulsed magnetic field carried by a very-low-frequency alternating magnetic field and intended to be applied to a region of the human body, the device is provided with a plurality of pairs of angular magnet sectors of opposite polarity, the pairs of angular magnet sectors being centered on one same axis of rotation, angularly spaced apart from one another, and set in rotation at a predetermined speed about the axis of rotation so as to generate an alternating magnetic field at a predefined frequency, and at least one conductive wire coil centered on the axis of rotation of the angular magnet sectors and supplied with a pulsed electric current so as to generate a pulsed magnetic field superimposed over the alternating magnetic field generated by the setting in rotation of the angular magnet sectors.

Abstract: A device is provided for generating a very-low-frequency pulsed magnetic field carried by a very-low-frequency alternating magnetic field and intended to be applied to a region of the human body. The device comprises a plurality of pairs of angular magnet sectors of opposite polarity. The pairs of angular magnet sectors being centered on one same axis of rotation, angularly spaced apart from one another, and set in rotation at a predetermined speed about the axis of rotation so as to generate an alternating magnetic field at a predefined frequency. At least one conductive wire coil centered on the axis of rotation of the angular magnet sectors and supplied with a pulsed electric current so as to generate a pulsed magnetic field superimposed over the alternating magnetic field generated by the setting in rotation of the angular magnet sectors.

Abstract: A portable apparatus for generating an induced low-frequency sinusoidal electric current in an area of the human body, comprises four angular magnet sectors inscribed within the same circle, centered on the same axis of rotation and spaced angularly apart from one another, the polarity of two adjacent angular magnet sectors being opposed, and means for rotating at a predetermined speed the angular magnet sectors about the axis of rotation such as to generate an induced sinusoidal current at a predefined frequency. Each angular magnet sector comprises one and the same geometrical shape with an internal angular opening of 90° , an external angular opening between 20° and 50°, and two lateral edges defining a radius extending over a distance which is between one-third and two-thirds of a distance separating the axis of rotation from the free end of the magnet sectors.

Abstract: Construction of a micro-thermocouple sensor designed to be incorporated in a mass flow meter for the circulation of gaseous fluids, includes of the following steps: depositing an insulating layer of several microns by electron gun on the sensor tube, then depositing the components of the thermocouple, by the electron gun, through the nickel masks, at a residual pressure lower than 10−6 torr, at a thickness of several thousand Angstroms, annealing of the capillary tube for one hour, then the mounting of a heating element on the capillary tube treated in this manner.

Abstract: The process for the construction of a micro-thermocouple sensor designed to be incorporated in a mass flow meter for the circulation of gaseous fluids, including of the following steps:

Abstract: The sensor (7) for a mass flow meter (1) including a capillary tube (6) for circulation of fluid in parallel with the principal circuit of the fluid circulation. The sensor includes heating mechanisms (20) of the capillary tube (6) and mechanisms for measuring the temperature (22, 23), upstream and downstream from this heating mechanism (20), and separate from the heating mechanism. The mechanisms for measuring the temperature (22, 23) are two resistors manufactured by deposition in an external manner on the sensor tube (6), one of them (22) upstream from the heating mechanism (20), the other (23) downstream from the heating mechanism. The manufacturing process includes stages of deposition by an electron gun, firstly of a layer of zirconia (21) of several microns, on the tube (6) made of stainless steel, then of the sensitive components (27) and the contacts (31, 32) of the measurement resistors (22, 23), made of platinum, and defined by masks of nickel.