摘要:
A magnetic temperature sensing device for rotatably moving parts, of the type including at least a magnetic field source element associated to the rotatably moving part and a magnetic field sensing element associated with 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 temperature of the rotatably moving part. The magnetic field source element permits rotation along at least an axis the direction of the magnetic field as a function of the temperature of the rotatably moving part.
摘要:
Described herein is a magnetoresistive network responsive to a magnetic field of the type comprising a plurality of magnetoresistive elements. According to the invention, the one or more magnetoresistive elements comprise at least one magnetoresistive element in the form of 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 an 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.
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:
A lighting device, comprising a luminous source consisting of a LED (5) that is placed between the flanges (2,3) of a primary reflector (1), which is essentially V-shaped. A secondary reflector (7), composed of an elongated element with steps (8), runs along the extension of one of the flanges (3) of the primary reflector (1), while an elongated transparent diffuser (9) runs along the extension of the other flange (2).
摘要:
A method for manufacturing magnetic field detection devices comprises the operations of manufacturing a magneto-resistive element comprising regions with metallic conduction and regions with semi-conductive conduction. The method comprises the following operations: forming metallic nano-particles to obtain regions with metallic conduction; providing a semiconductor substrate; and applying metallic nano-particles to the porous semiconductor substrate to obtain a disordered mesoscopic structure. A magnetic device comprises a spin valve, which comprises a plurality of layers arranged in a stack which in turn comprises at least one free magnetic layer able to be associated to a temporary magnetisation (MT), a spacer layer and a permanent magnetic layer associated to a permanent magnetisation (MP). The spacer element is obtained by means of a mesoscopic structure of nanoparticles in a metallic matrix produced in accordance with the inventive method for manufacturing magneto-resistive elements.
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 utilizer 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.
摘要:
A thin-film device for detecting the variation of intensity of physical quantities, in particular a magnetic field, in a continuous way, comprises an electrical circuit including one or more sensitive elements, which are designed to vary their own electrical resistance as a function of the intensity of a physical quantity to be detected. One or more of the sensitive elements comprise at least one nanoconstriction, and the nanoconstriction comprises 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. The nanochannel is able to set up a domain wall that determines the electrical resistance of the nanoconstriction as a function of the position, with respect to the nanochannel, of the domain wall formed in the sensor device. At least one cross section of the nanochannel is configured so as to present a variable extension along one or more axes as a function of different values of the physical quantity to be detected.
摘要:
Described herein are a method and a device for determining the relative position of two elements that are mobile with respect to one another, in which connected to a first element is a source of a field of forces and connected to a second element is a meter, designed to measure the field of forces and to supply, instant by instant and as a function of the measurement made, a response identifying the relative position of the first element with respect to the second element at that instant, the meter being provided with at least three field sensors arranged in respective distinct points of the second element, and the response being obtained by comparing with one another the outputs corresponding to that instant.
摘要:
Described herein is a magnetoresistive network responsive to a magnetic field of the type comprising a plurality of magnetoresistive elements. According to the invention, the one or more magnetoresistive elements comprise at least one magnetoresistive element in the form of nanoconstriction, the 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, the nanochannel being able to set up a domain wall that determines an electrical resistance of the nanoconstriction as a function of the position, with respect to said nanochannel, of said domain wall formed in said sensor device.
摘要:
A device for detecting magnetic fields, of the type comprising at least one element made of hard 5 magnetic material (12) and an element made of soft magnetic material (13) associated an element made of semiconductor material (11), electrodes (15) for forcing a current (I) in the semiconductor material (11), characterised in that the element made of hard magnetic material (12) and element made of soft magnetic material (13) are positioned in planar fashion on the element made of semiconductor material (11).