磁芯

磁芯（PQ65）

磁芯（ER85）

集成风道磁性器件

Thermal conduction path logic regulation and control system and regulation and control method based on thermal diode

The invention discloses a thermal diode-based heat conduction path logic regulation and control system and a regulation and control method. The system comprises a forward thermal diode, a reverse thermal diode and a structured external field. The forward/reverse thermal diodes have the same structure, and each of the forward/reverse thermal diodes consists of a mold, a logic runner and a functional fluid; the logic flow channel is composed of a center branch fluid storage chamber, a center branch flow channel, a working cavity, an edge branch flow channel and an edge branch fluid storage chamber. When no structural external field exists, the thermal diodes serve as one-way heat transfer devices, switching of two heat conduction paths can be achieved, two temperature distributions are formed on the heat flow output face, and the temperature of the forward thermal diodes on the heat flow output face is always higher than that of the reverse thermal diodes. When a structured external field ...

Double-sided photoetching machine

The invention relates to the field of photoetching machines, and discloses a double-sided photoetching machine, which comprises an exposure unit, and the exposure unit comprises a basic exposure light path, a light path selection structure, a front exposure light path, a back exposure light path and a wafer bearing stage, light beams generated by the basic exposure light path can selectively enter the front surface exposure light path and/or the back surface exposure light path when passing through the light path selection structure so as to expose the front surface and/or the back surface of a wafer on the wafer bearing platform, and the light path selection structure comprises a light path selection base and a driving part for driving the light path selection base to rotate; a front light path area, a back light path area and a double-sided light path area are sequentially arranged on the light path selection base along a rotating path, a straight through hole is formed in the front light ...

Method for manufacturing hydrophobic color-changing transparent substrate based on soft lithography

The invention discloses a method for manufacturing a hydrophobic color-changing transparent substrate based on soft lithography, and belongs to the field of micro-nano manufacturing. The preparation method is characterized in that a metal oxide nano material with semiconductor photoelectric characteristics is selected, and large-area multi-scale graphical manufacturing is carried out on the nano material through a PDMS soft photoetching technology by utilizing the large specific surface area, light transmission, photoelectric characteristics and the like of the nano material; and the color-changeable transparent substrate with good light transmission and hydrophobicity is realized at the same time. The method not only has the characteristics of the imprinting technology, such as large area, high efficiency, low cost, simplicity and reliability, but also can realize the characteristics of antifouling, self-cleaning, photochromic and the like of the transparent substrate by utilizing the ...

Mechanical drilling machine

The mechanical drilling machine comprises a drilling machine body, a bottom plate is fixedly installed at the bottom end of the drilling machine body, and a motor box is fixedly installed on one side of the bottom plate; a relatively closed space can be formed under the action of the first baffle, the second baffle, the two sets of fixing frames and the plugging plate, then transmission of part of noise can be blocked, noise pollution is reduced, dust, chippings and the like generated in the drilling process can be blocked in the space, and the drilling efficiency is improved. And meanwhile, in the drilling process, vibration force generated in the drilling process of a drilling workpiece can be absorbed through a first rubber pad and a second rubber pad, noise transmission is further reduced, and in the drilling process, the vibration force generated in the drilling process of the drilling workpiece is further reduced. Water in the water tank can be conveyed to a drilling part on a drilling ...

Remote light-driven miniature soft robot and manufacturing and control method thereof

The invention discloses a remote light-driven miniature soft robot and a manufacturing and control method thereof. The remote light-driven miniature soft robot can be applied to non-structural operation environments such as environment monitoring, ruins search and rescue, medical diagnosis and military reconnaissance. The device mainly comprises micro-nano column supporting legs, movement of the miniature soft robot is determined by interaction of the micro-nano column supporting legs and the environment where the micro-nano column supporting legs are located, under illumination of infrared light with a certain frequency, the silicone rubber driving component doped with the infrared absorption material responds to external infrared light stimulation and converts the external infrared light stimulation into heat, silicone rubber is promoted to expand and contract, and driving force is provided for the soft robot. The miniature soft robot is simple in structure and not limited by a traditional ...

Well cementation pump pry full-closed type slurry mixing tank capable of achieving full-automatic slurry mixing and slurry mixing method

The invention relates to a well cementation pump pry fully-closed slurry mixing tank capable of achieving full-automatic slurry mixing and a slurry mixing method.The well cementation pump pry fully-closed slurry mixing tank capable of achieving full-automatic slurry mixing comprises a closed tank body, the top of the closed tank body is provided with a gas diffusion groove, a slurry mixing inlet is formed in the gas diffusion groove, and the bottom of the closed tank body is provided with an exhaust port and a sewage draining exit; the slurry mixing device is communicated with the mixed slurry inlet, and the slurry mixing device is used for prefabricating mixed slurry; the dust removal device is communicated with the gas diffusion groove, and the dust removal device is used for collecting dust in the closed tank body; the stirring device is arranged in the closed tank body, and the stirring device is used for stirring the mixed slurry in the closed tank body; and the flushing device is ...

Well cementation cement slurry density control system and method

The invention discloses a well cementation cement slurry density control system and method. According to the system, a first PID control module generates a first output signal according to a cement paste density set value and first density; the second PID control module generates a second output signal according to the first output signal and the second density; the dry cement ash flow calculation module calculates a mass flow estimation value of the dry cement ash entering the mortar mixing tank according to the first density, the second density and the clear water flow; the feedforward control module generates a third output signal according to the clear water flow; the third PID control module generates a fourth output signal according to the second output signal, the third output signal and a dry cement ash mass flow estimation value; the cement ash flow regulating valve executes the fourth output signal to control the dry cement ash flow. By the adoption of the scheme, the density ...

System and method for quickly screening cognitive impairment

The system for quickly screening the cognitive impairment comprises a memory function test module, a processing speed test module, a working memory test module, a planning capability test module, a geometric space test module and a comprehensive evaluation module, according to output data of the memory function test module, the processing speed test module, the work memory test module, the planning capability test module and the geometric space test module, a cognitive impairment evaluation result of the user is obtained. The invention further discloses a method for quickly screening cognitive impairment. The cognitive impairment evaluation of a user is realized by using the module. Compared with an existing test system, the system and the method have the advantages that the cognitive disorder degree of the user can be judged in a short time and with high sensitivity, the operation interaction of a testee is easier to understand and use, the influence of the culture level degree is smaller ...

Outdoor rain-proof dust-proof heat dissipation cabinet

The utility model discloses an outdoor rain-proof dust-proof heat dissipation cabinet, which comprises a cabinet body, a top plate of the cabinet body is provided with a vent hole, and a dust-proof net is embedded in the vent hole; vertical-row shutter holes a are formed in two side plates of the cabinet body, communicated water flowing grooves are formed in the upper portions and the two sides of the vertical-row shutter holes a, a movable cover plate is arranged outside the water flowing grooves and the vertical-row shutter holes a, vertical-row shutter holes b are formed in the movable cover plate, the top of the movable cover plate is connected to the side plates through hinges, and the top of the movable cover plate is connected to the cabinet body through hinges. And when the movable cover plate is in a closed state, the vertical-row shutter holes a and the vertical-row shutter holes b are in staggered positions. On one hand, the sunscreen plate has a sunscreen effect on the cabinet ...

Variable capacitor for regulating dielectric constant based on liquid metal

A liquid metal-based variable capacitor capable of regulating and controlling dielectric constant comprises a plurality of liquid metal chambers which are arranged between an upper metal pole plate and a lower metal pole plate and are not communicated with each other, and the liquid metal chambers are connected with a liquid metal input/discharge device through a liquid metal flowing pipeline. The liquid metal input/discharge devices contain liquid metal, the liquid metal in the liquid metal input/discharge devices has different dielectric constants, and the liquid metal input/discharge devices can input the contained liquid metal into the liquid metal cavity through the liquid metal flowing pipeline and suck the contained liquid metal out of the liquid metal cavity. The problems that a variable capacitor is too large in size and small in capacitance adjustable range are solved, and the practicability of the variable capacitor is improved.

Weighing funnel for blast furnace coke

... 高炉焦碳称量漏斗，包括漏斗（1），其特征是：料兜焊接在漏斗（1）的底部，料兜为四边形槽结构，料兜包括外侧板（2），底板（3）和内侧板（6），外测板（2），其中内侧板（6）合围形成下料口（4）。本实用新型解决高炉焦碳称量漏斗的底部下料口磨损严重，维修需要休风即要停炉，直接导致影响生产，并且当焦碳称量漏斗闸门下料口磨损到一定程度就会产生下料口堆料，使得焦碳称量漏斗闸门关闭不严，不仅给生产工人带来清理料坑的负担，而且也造成安全生产隐患的问题。 ...

Sealing structure for storage box of front spare box of automobile

The invention discloses an automobile front spare box storage box sealing structure which comprises a first sealing strip arranged on a front spare box and a second sealing strip arranged on a front cover plate assembly, the first sealing strip and the second sealing strip are oppositely arranged, and when the front cover plate assembly is closed, the second sealing strip and the first sealing strip are correspondingly attached to form a closed structure. According to the front spare box storage box sealing structure, the front spare box storage box sealing structure is divided into two parts, the first part is the first sealing strip arranged on the front spare box storage box, the second part is the second sealing strip arranged on the front cover plate assembly, the second sealing strip moves to be opened along with opening of the front cover plate, and after the front cover plate assembly and the front spare box are closed, the front spare box storage box is sealed. And the first sealing ...