摘要:
A magnetic pressure sensing device for rotatably moving parts, of the type including at least one magnetic field source element associated with the rotatably moving part and a magnetic field sensing element associated to a fixed part to measure parameters of a magnetic field determined by the magnetic field source element, the parameters of the magnetic field being a function of the pressure applied to the rotatably moving part. The magnetic field source element includes a device for rotating around at least one axis the direction of the magnetic field as a function of the pressure applied to the rotatably moving part.
摘要:
A magnetic pressure sensing device for rotatably moving parts, of the type including at least one magnetic field source element associated to said rotatably moving part and a magnetic field sensing element associated to a fixed part to measure parameters of a magnetic field determined by said magnetic field source element, said parameters of the magnetic field being a function of the pressure applied to said rotatably moving part. The magnetic field source element includes means for rotating around at least one axis the direction of said magnetic field as a function of the pressure applied to said rotatably moving part.
摘要:
A magnetic pressure sensing device for rotatably moving parts, of the type including at least one magnetic field source element associated to said rotatably moving part and a magnetic field sensing element associated to a fixed part to measure parameters of a magnetic field determined by said magnetic field source element, said parameters of the magnetic field being a function of the pressure applied to said rotatably moving part. The magnetic field source element includes means for rotating around at least one axis the direction of said magnetic field as a function of the pressure applied to said rotatably moving part.
摘要:
In a process to make an emitter (10) for light sources, which can be led to incandescence through the passage of electric current, a layer made of anodized porous alumina (1) is used as sacrificial element for the structuring of at least a part of the emitter (10).
摘要:
Described herein is a thin-film device for detecting physical quantities, in particular a magnetic field, of the type comprising an electrical circuit including one or more sensitive elements, which are designed to vary their own electrical resistance as a function of a physical quantity to be detected, said one or more sensitive elements comprising at least one nanoconstriction, said nanoconstriction comprising at least two pads made of magnetic material, associated to which are respective magnetizations oriented in directions substantially opposite to one another and connected through a nanochannel, said nanochannel being able to set up a domain wall that determines the electrical resistance of said nanoconstriction as a function of the position, with respect to said nanochannel, of said domain wall formed in said sensor device. At least one cross section of said nanochannel is configured so as to present a variable extension along one or more axes as a function of different values of said physical quantity to be detected.
摘要:
The generator comprises at least one source of pressurized gas and a closed hydraulic circuit containing a solution comprising an electrically conducting vehicle liquid in which a charge of micro- or nanoparticles of a metal material is dispersed. The circuit has at least one inlet port connected to the source so that, when in operation, it receives a flow of pressurized gas capable of causing circulation of the solution within the circuit in a predetermined direction, forming a two-phase gas-liquid mixture with it, a restriction in cross section, downstream from the inlet port calibrated in such a way as to cause an increase in velocity and condensation of the two-phase mixture, and at least one outlet port, located downstream from the restriction through which the gas mixed with the solution can be released and discharged from the circuit. The generator also comprises magnetic field generating devices, associated with a length of the hydraulic circuit lying between the inlet port and the restriction in cross section in order to generate an induction flux (10) at right angles to the direction of flow of the solution in that length of circuit, and at least one pair of electrodes placed in contact with the solution in that length of the hydraulic circuit, and facing each other in a direction essentially at right angles to the lines of force of the magnetic field and the flow direction of the solution in that length of circuit. The arrangement is such that, when in operation, an electric current whose strength depends on the flow velocity of the solution in that length of the hydraulic circuit, the strength of the associated magnetic field and the electrical resistance between the electrodes flows between the electrodes.
摘要:
An emitter (F) for incandescent light sources, in particular a filament, capable of being brought to incandescence by the passage of electric current is obtained in such a way as to have a value of spectral absorption α that is high in the visible region of the spectrum and low in the infrared region of the spectrum, said absorption α being defined as α=1−ρ−T, where ρ is the spectral reflectance and T is the spectral transmittance of the emitter.
摘要翻译:获得能够通过电流使其变成白炽灯的白炽光源(特别是灯丝)的发射极(F),其具有在可见光区域中具有高的光谱吸收α值 光谱的红外区域的光谱和低,所述吸收α被定义为α= 1-rho- T SMALLCAPS>,其中rho是光谱反射率,并且 T SMALLCAPS>是 发射体的光谱透射率。
摘要:
A nanoporous polymeric membrane is obtained by bombing a polymer film by means of high energy focused heavy ion beams and subsequently performing chemical etching to remove the portions of the polymer film in the zones degraded by the ion bombing, in such a manner to obtain pores passing through the polymer film. The heavy ion bombing is performed after interposing between the source of ions and the polymer film, adjacent to the film, an amplitude mask having an ordered arrangement of nanopores and having sufficient thickness to prevent the passage of the heavy ions that are not directed through the pores of said amplitude mask, in such a manner to obtain in the polymer fill an ordered arrangement of nanopores having an aspect-ratio at least exceeding 10 and preferably exceeding 100.
摘要:
An emitter (F) for incandescent light sources, in particular a filament, capable of being brought to incandescence by the passage of electric current is obtained in such a way as to have a value of spectral absorption α that is high in the visible region of the spectrum and low in the infrared region of the spectrum, said absorption α being defined as α=1−ρ−τ, where ρ is the spectral reflectance and τ is the spectral transmittance of the emitter.
摘要:
The system allows the generation and distribution of energy on board a motor vehicle provided with a propulsion unit, a tank for fuel at least one distribution network or line for electric energy, electrical energy generation devices connected to the at least one distribution network or line, and a plurality of selectively activatable electrical utiliser devices or apparatus connected or connectable to the at least one distribution network or line. The electrical energy generator devices includes (at least) a microcombustor electricity generator matrix or battery connected to the fuel tank, and a supervision and control unit associated with this generator matrix or battery and coupled to the distribution network or line and arranged to control the operation of the generator matrix or battery in a predetermined manner as a function of the electrical power required or consumed by the network or line.