12results about How to "Solve miniaturization" patented technology

The invention discloses a non-microwave electromagnetic field measurement method and device based on an NV color center, and relates to the field of quantum precision measurement, and the device comprises a magnetic field generation structure, a laser excitation structure, a color center selection structure and a fluorescence detection structure. The magnetic field generation structure is used for applying a magnetic field with known direction and size to the diamond; the laser excitation structure generates laser, and the laser irradiates the diamond containing the NV color center; the color center selection structure performs micron-level focusing on an objective lens by using a three-axis displacement table and selects a diamond NV color center corresponding to the size and direction of a magnetic field; the fluorescence detection structure collects fluorescence radiated by the NV color center and converts the fluorescence into an electric signal for measurement. According to the invention, by applying the magnetic field with the size of 1024G along the NV axis and the included angle within 0.1 degree, the detection of the target electromagnetic field is realized by utilizing the sensitivity to the transverse component of the electromagnetic field under the strong magnetic field; the invention discloses a non-microwave electromagnetic field measurement method and device based on an NV color center, and is suitable for magnetic field and electric field measurement of an all-optical device without a microwave assembly.

The invention discloses a proportional electromagnet and an electromagnetic valve. The technical problems that an existing proportional electromagnet is large in size, high in assembly precision requirement and poor in armature position detection precision are mainly solved. The magnetic shell is provided with a cylindrical cavity along the central axis; the iron core is relatively fixed in the cylindrical cavity and is provided with an armature moving cavity along the central axis; the winding is wound between the magnetic shell and the iron core; the armature is movably embedded in the armature moving cavity; the core cap is arranged at one end of the iron core and is used for sealing the armature moving cavity; the magnetic sensor is embedded in the core cap and is used for detecting the position of the armature; and the thickness direction of the magnetic sensor is the same as the movement direction of the armature. The proportion electromagnet has the advantages of being small in size, wide in application range, high in armature action position control precision, easy to assemble, high in yield and the like.

The invention relates to the technical field of wireless communication, and discloses a low orbit satellite communication K / Ka frequency band broadband dual circularly polarized antenna. According to the technical scheme, the antenna is characterized by comprising a radiation port surface, a resonant cavity, a dual-circular polarizer, a quasi-TEM transmission air cavity layer, a left polarization broadband feed network layer, a right polarization broadband feed network layer, a TEM mode conversion terminal, a polarization switch, a transceiving duplexer, a first standard waveguide port layer and a second standard waveguide port layer. The antenna is simple in structure, has a self-packaging characteristic, is good in electromagnetic compatibility, and can achieve the high gain, wide bandwidth and high circular polarization purity of the antenna. The shielding air cavity is formed by structure stacking and the metalized through holes, and when a plurality of circuits are integrated together, mutual interference is small, the structure is compact, assembling is convenient, and electrical performance is excellent.

The invention discloses an optical machine with high heat dissipation efficiency, which comprises a light source (1), an optical assembly (2), a lens (3) and a heat dissipation assembly (4), after the light source (1) emits initial light to the optical assembly (2), the optical assembly (2) emits shaped scattered light to the lens (3), the lens (3) emits projection light, and the projection light is emitted by the heat dissipation assembly (4). The heat dissipation assembly (4) comprises a heat dissipation fan (41) and multiple sets of heat dissipation fins (42) which are arranged in a split mode, the heat dissipation fan (41) is arranged on the side close to the lens (3), and the multiple sets of heat dissipation fins (42) are arranged on the side close to the light source (1); when the heat dissipation assembly (4) works, the heat dissipation fan (41) and the multiple sets of heat dissipation fins (42) form a heat dissipation air path used for cooling the optical assembly (2) and the light source (1).

The invention discloses an airborne high-suppression high-power filter and an installation method thereof, and relates to the field of communication. The radio frequency circuit comprises seven inductors which are connected in sequence, and every two adjacent inductors are grounded through a capacitor. The working frequency band is 500MHz, the in-band loss is less than 0.4 dB through circuit design, continuous wave 2000W high power can be borne, the size is small, the weight is light, out-of-band harmonic waves of a high-power transmitter can be filtered, and the electromagnetic compatibility of the system is improved. High suppression is realized by adopting a circuit form of a 13-section Chebyshev LC low-pass filter, and 760MHz out-of-band suppression can reach more than 70dB. Through structural process design and box body laser seal welding, the vibration and low-pressure environment of airborne use can be met. The antenna is suitable for improving the electromagnetic compatibility of an airborne broadband high-power transmitting system.

This invention provides a static cone penetration test (CPPT) system and method for measuring the thickness of carnallite ore layers based on an unmanned surface vessel (USV) with variable buoyancy anchoring. The system includes an USV body, a penetration unit, a main control unit, a data acquisition unit, a multi-parameter formation identification unit, and a fluid counterweight anchoring unit. When the USV body is not performing detection operations, the fluid counterweight anchoring unit increases the weight of the hull. As the static cone penetration probe penetrates the formation, it collects the end resistance at the probe tip and the frictional force on the probe sidewall sleeve, transmitting these data to the multi-parameter formation identification unit. The identification unit identifies the upper and lower interfaces of the carnallite ore layer. The control unit calculates the carnallite ore thickness based on the depth difference between the static cone penetration probes at the upper and lower interfaces of the carnallite ore layer. This invention improves measurement accuracy, resolves the contradiction between miniaturization and large reaction forces, does not damage the original crystallization environment of the salt lake, and enhances the safety of unmanned operations.

The invention provides an energy converter and a microwave heating non-combustion smoking set, and belongs to the technical field of electronic cigarettes, the microwave heating non-combustion smoking set comprises a supporting body, an energy feed-in conductor and an energy conversion heating conductor, and the supporting body is provided with a heating cavity for inserting and pulling out a cigarette; the energy feed-in conductor is spirally wound on the lower part of the outer surface of the support body; the lower end of the energy feed-in conductor is connected with a microwave power source and serves as a feed-in end of microwave energy; the energy conversion heating conductor is wound on the upper portion of the outer surface of the supporting body in a double-helix mode and wound outside the heating cavity of the supporting body, and the lower end of the energy conversion heating conductor is connected with the upper end of the energy feed-in conductor so that microwave energy can be converted into electromagnetic waves. The microwave heating non-combustion smoking set has the advantages of being small in size, small in cigarette inserting and pulling resistance, good in structural strength, not prone to being broken and the like.

The utility model relates to the technical field of fishery breeding, in particular to a bait distributor. The bait distributor aims at solving the problems that an existing bait distributor is large in size, complex in structure and high in maintenance cost. The bait distributor comprises a base, a discharging assembly and a reciprocating driving mechanism, wherein the discharging assembly and the reciprocating driving mechanism are arranged on the base. The discharging assembly comprises a discharging plate provided with at least two discharging openings, the discharging plate is arranged on one side of the base in the width direction, and the discharging openings are formed in the length direction of the base at intervals. The driving end of the reciprocating driving mechanism is connected with a communicating valve, gaps are reserved between the communicating valve and the discharging plate and between the communicating valve and the base, the communicating valve is provided with a feeding channel in a penetrating mode, the extending direction of the feeding channel is consistent with the width direction of the base, and the reciprocating driving mechanism is configured to drive the communicating valve in a reciprocating mode in the length direction of the base. And the feeding channel is communicated with different discharging ports.

The invention discloses a phased array front-end structure and a preparation method thereof. Comprising a first metal layer, a first dielectric layer, a second metal layer, a second dielectric layer, a third metal layer, a third dielectric layer, a fourth metal layer and a solder mask which are sequentially arranged on a substrate, an SU8 chip slot of a built-in chip arranged on the substrate, and an antenna substrate which is located at the top and is electrically connected with the third dielectric layer through a ball grid array (BGA), the chip and the silicon substrate are electrically connected through the lead bonding technology, and meanwhile the silicon substrate and the antenna substrate are interconnected through the ball grid array packaging technology. By forming the slot position in the SU-8 photoresist and directly mounting the chip on the surface of the silicon substrate, not only is the heat dissipation capability of the system enhanced, but also the distance between the chip and the ground plane of the antenna substrate above is effectively increased, and the deterioration of the performance of the chip is prevented. According to the manufacturing scheme, the combination of high performance and high heat dissipation capability of the phased array front-end system under high-density packaging is realized.

The invention discloses an electric drive axle housing assembly. In the electric drive axle housing assembly, an axle housing cover comprises a cavity, a first protrusion and a second protrusion which extend out of the cavity are sequentially arranged in the cavity in the first direction, and a first side wall face on the first protrusion and a second side wall face on the second protrusion are oppositely arranged in the first direction. And a mounting cavity for accommodating the output gear is defined by the wall surface between the first bulge and the second bulge in the cavity. The oil suction part comprises an oil channel located in the first protrusion and an oil pump, an oil suction opening of the oil channel is formed in the first bottom wall face of the first protrusion, an oil outlet of the oil channel is communicated with the oil pump, the oil suction opening is independent of the installation cavity, and the oil suction opening is communicated with the installation cavity. According to the electric drive axle housing assembly, on the basis that the liquid level needed by lubrication is guaranteed, the oil adding amount of the middle cavity is reduced, lubricating oil is saved, the space in the middle cavity is fully utilized, the compactness of the structure is improved, the stirred lubricating oil is prevented from directly entering the oil suction opening, and normal operation of an oil pump is guaranteed.

The invention relates to the technical field of wireless communication, and discloses a low-loss broadband one-to-four power divider based on SISL. According to the technical scheme, the antenna is characterized by comprising a standard coaxial waveguide, a metal inductive impedance matching structure, a quarter impedance conversion strip line, a periodic electromagnetic band gap structure, a thin film dielectric plate, a metal cavity, an inductive matching diaphragm, an input and output transition structure and a metal microstrip line, through a method of placing an FPC printing strip line in a conventional metal cavity, the problems that a conventional cavity and a microstrip are large in power division loss and narrow in bandwidth are solved, and meanwhile the power division in the form is light in weight and large in bearable power; frequency bands above millimeter waves are easy to adapt to different microwave assemblies, a passive circuit and an active circuit can be designed on the structure at the same time, system integration is achieved, and the system integration degree of the microwave assembly is greatly improved; the overall processing has low requirements on precision and assembly, can effectively reduce the cost, and is suitable for different microwave system application scenes.