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108results about How to "The device is compact" patented technology

High-precision focusing device used for space optical remote sensing instrument

The invention discloses a high-precision focusing device used for a space optical remote sensing instrument. The high-precision focusing device comprises two parts, namely a focusing mechanism and a locking mechanism, wherein the main parts of the focusing mechanism, namely a driving motor, a precision ball screw and a potentiometer, are all arranged in a support cylinder of the focusing mechanism; a fixed lens and a focusing lens are arranged in a lens support cylinder, and a focusing movement part and the focusing lens are connected by a focusing connecting frame. When the high-precision focusing device works, the ball screw changes the rotation movement of the driving motor into the linear movement, the focusing lens is driven to move along the axial direction by a high-precision linear sliding way, and the focusing position is controlled according to feedback signals of the potentiometer. In the device, the locking mechanism is used for locking the initial position of the focusinglens. The device of the invention can drive heavy-calibre optical elements, is good in movement stability, has accurate positioning precision and repeated positioning precision, and meets the demand of long-service-life focusing of a space remote sensing camera. In addition, the locking mechanism is adopted for fully ensuring the constant optimal ground image quality position.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI

Device and method for fruit and vegetable pesticide residues based on laser Raman spectrometer

The invention relates to a device and a method for fruit and vegetable pesticide residues based on a laser Raman spectrometer. With the development of agricultural technology, various pesticides are used for prevention of fruit and vegetable pests in order to meet people's requirements in daily life by efficiently producing the fruits and vegetables with high yield, thus pesticide residues are formed on the surfaces of the fruits and vegetables unavoidably. The device for fruit and vegetable pesticide residues based on the laser Raman spectrometer comprises a display screen, a RS232 cable, a processor, a laser device, optical fibers, clamp nuts, a lens, a sample support, a probe housing, a reflective mirror, an optical fiber coupler, a pinhole, a focus lens, a collimating lens, optical gratings, a detector, a cut-off optical filter and a data line which are all fixed on the casing of the device. The device for fruit and vegetable pesticide residues based on the laser Raman spectrometer has the advantages of being compact in structure, low in power dissipation, high in stability, convenient to carry, and suitable for field detections. During detection, no movement of the device is needed, detection results are not affected by external vibrations, and the detection precision and speed are high.
Owner:EAST CHINA JIAOTONG UNIVERSITY

Runner type online degassing device

InactiveCN101781712AThe device is compactLittle space requiredSurface oxidationAluminium
The invention belongs to the technical field of metallurgy, and relates to a runner type online degassing device, which comprises a runner shell, a degassing chamber, gas permeable bricks, a heat insulating cover, a vent, a first baffle plate, a second baffle plate, a middle baffle plate, a gas inlet, an inlet and an outlet; the degassing chamber is arranged in the runner shell; the heat insulating cover is movably connected with the runner shell, and is provided with the vent; two ends of the degassing chamber are provided with the inlet and the outlet; the middle of the degassing chamber is provided with the middle baffle plate; the first baffle plate is arranged between the middle baffle plate and the inlet; the second baffle plate is arranged between the middle baffle plate and the outlet; gaps are reserved between the bottoms of the first and second baffle plates and the degassing chamber; the bottom of the middle baffle plate is fixedly connected with the degassing chamber; the gas permeable bricks are embedded on the bottom of the degassing chamber and arranged between the first baffle plate and the middle baffle plate and between the second baffle plate and the middle baffle plate; and the bottoms of the gas permeable bricks are provided with the gas inlet. The runner type online degassing device has low requirement on space, is provided with the submerged baffle plates and the heat insulating cover, reduces gas absorption again and surface oxidation of degassed aluminium liquid, and has good degassing purification effect.
Owner:江西金达通新材料科技有限公司

Thermal desorption device

The invention relates to the technical field of sample detection and discloses a thermal desorption device combined with a gas chromatograph. The thermal desorption device is mainly used for thermal desorption of a solid phase micro-extraction rod, a solid phase micro-extraction stirring bar, a cluster capillary solid-phase micro-extraction pipe and a filling adsorption column and realizes fast desorption of a trace quantity of an adsorbed and enriched ingredient. The thermal desorption device comprises a heating pipe, a lining pipe, a seal ring, a lining pipe pressure cap, a lining pipe base, a lining pipe base heat-insulation ring, a desorption device pedestal, a sample transmission pipe, a desorption purge gas circuit, a desorption shunting gas circuit, a heating wire and a temperature control element. A sample ingredient is subjected to thermal desorption in the lining pipe, and the sample transmission pipe is heated by the heating pipe and thermal conduction of an upper cap of a gas chromatogram sample injector and is subjected to heat insulation by the lining pipe base heat-insulation ring. When a desorption temperature is 300 DEG C, the thermal desorption device has a desorption residual rate less than 0.1% of the ingredient at a boiling point less than 430 DEG C. The thermal desorption device has the advantages of no cold zone of a desorption sample channel, fast heating rate and low power consumption.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Electrooptical modulator based on phase-change material

The invention discloses an electrooptical modulator based on a phase-change material. The electrooptical modulator comprises an SOI substrate; the electrooptical modulator is characterized in that aninput waveguide, a mixing waveguide and an output waveguide connected in sequence are arranged on the SOI substrate in the horizontal direction, the mixing waveguide is formed by laminating a siliconwaveguide layer, a phase-change material GST layer and a copper electrode layer from bottom to top in sequence, the SOI substrate comprises a layer of silicon substrate body with the thickness of 250nanometers and a silicon dioxide layer with the thickness of 2 micrometers, the thicknesses of the input waveguide and the output waveguide are both 250 nanometers, the widths of the input waveguide and the output waveguide are both 400 nanometers, the thickness of the mixing waveguide is 290 nanometers, the width of the mixing waveguide is 400 nanometers, and silicon thin film with the thicknessof 10 nanometers is formed at one side of the silicon waveguide layer through selective erosion. The electrooptical modulator has the advantages that the size is small, on-substrate integration is facilitated, the energy consumption is low, the working bandwidth is large, the modulating depth is large, and the inserting loss is low.
Owner:NINGBO UNIV

Manufacturing method of MOS (metal oxide semiconductor) device of integrated Schottky diode

The invention discloses a manufacturing method of an MOS (metal oxide semiconductor) device of an integrated Schottky diode. The manufacturing method comprises the following steps: providing a first conductive type of semiconductor substrate; forming a first conductive type of epitaxial layer on the substrate; carrying out ion implantation and diffusion of a second conductive type of doping agent on the epitaxial layer to form a plurality of second conductive type of regions, wherein preset interval regions are formed among the regions; forming a plurality of groove grids, second conductive type of contact regions and first conductive type of source regions in each region; depositing and etching an interlayer dielectric layer to ensure that the interlayer dielectric layer covers the groove grids and partial source regions to form contact holes; and depositing a metal layer on the contact holes, wherein the metal layer and the epitaxial layer of the preset interval regions form the Schottky diode. Through the adoption of the manufacturing method, the Schottky diode can be directly formed on the surface of the substrate without silicon etching, and the process complexity can be reduced.
Owner:SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT

Device and method for laser real-time removal of surface oxide scale in additive manufacturing process of metal component

The invention discloses a device and method for laser real-time removal of surface oxide scale in an additive manufacturing process of a metal component. The device comprises an additive manufacturingdevice, an additive deposition head, a laser cleaning device, a laser cleaning head and a connecting mechanism; the laser cleaning head is connected with the additive deposition head through the connecting mechanism; the laser cleaning head is fixed in front of the moving direction of the additive deposition head; when an additive is manufactured into the metal component, a feeding nozzle conveysmetal to the additive deposition head and the metal is molten and deposited to be shaped under the action of high heat; the laser cleaning head is connected with the laser through an optical fiber; and before the laser is irradiated on the deposition point through the laser cleaning head, the oxide scale on the formed surface is stripped or evaporated, and inert gas is sprayed out from a cleaninggas nozzle to take away the stripped oxide scale, so as to provide a good adhesion surface for subsequent deposition. The problem that the mechanical property of the component and the corrosion resistance are reduced since the oxide scale on the formed surface is molten into a new deposition layer in the additive manufacturing process of the metal component is solved.
Owner:DALIAN UNIV OF TECH

Busbar connection device

The invention relates to a bus coupling device, which comprises two bus insulators and a bus connector. A plurality of contacts are buckled with gaps which are mutually corresponding on two lining rings to form a hollow column; a plurality of spring rings and two gear rings are respectively hooped in two spring gaps and gear ring gaps of the hollow column; the hollow column, the spring rings and the two gear rings form a conductive body which is fixed inside an insulating sheath through teeth of the gear rings and an inner wall of the insulating sheath. When in use, two current-carrying busesare respectively connected with electrical contacts of the two bus insulators; the two ends of the bus connector are respectively buckled with the electrical contacts of the two bus insulators; the two current-carrying buses are connected together through one bus insulator, the bus connector and the other bus insulator. The bus coupling device has the advantages of easy installation, cabinet structure and no exposed conductive part and can be used for the connection between two close high-voltage high-current electric apparatuses, the power transmission is not easy to be influenced by the outside, and the safety and the stability for the power transmission can be ensured.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Machine-soil acting force soil groove testing and detecting device and method thereof

The invention discloses a machine-soil acting force soil groove testing and detecting device and a method thereof. The device comprises a soil groove, a traction assembly, a control assembly and a data acquisition assembly, the traction assembly is arranged on a track of the soil groove through a track wheel, by filling the soil groove with soil of the testing requirement type and conducting pretreatment, upland field operating conditions can be simulated, by changing the paddy field soil type, the water content, the surface layer water depth, the standing time and the like in the soil groove,all paddy field environment conditions can be simulated, the control assembly is utilized to control the traction assembly to conduct speed stepless adjustment for forwarding and retreating, the dataacquisition assembly is utilized to synchronously record the machine-soil acting force, and the machine forwarding speed and the traction torque. The device is compact in structure, the working process is automatically controlled, the testing precision is high, requirements of an agricultural machine and power source key parts thereof for soil acting force resistance testing are met, and the device and the method thereof can also be used for detecting and testing the machine performance.
Owner:ZHEJIANG UNIV

Small solar multistage falling film evaporation heat regeneration type seawater desalting device

The invention discloses a small solar multistage falling film evaporation heat regeneration type seawater desalting device which comprises eight working stages which are serially connected in sequence from front to rear, wherein the first working stage is in a heat collection structure and is formed by connecting at least one first heat collection unit in parallel; the second to seventh working stages are all in heat collection/evaporation/condensation three-in-one structures, and each working stage comprises a second heat collection unit; steam is cooled and condensed stage by stage under the condition of non negative pressure by controlling the working temperature of the first to seventh working stages; the eighth working stage is in a cooling structure, all steam is condensed into fresh water, and the fresh water is collected and stored. According to the device, a solar medium-temperature heat collector, a heat pipe and a falling film evaporation/condensation device are integrated by adopting medium-temperature medium-pressure steam stage-by-stage cooling and heat regeneration, heat-pipe heat transfer and gravity type liquid drop falling film evaporation technologies, no power device is needed, the heat utilization efficiency and the water production efficiency are improved, and the cost is reduced; the device is suitable for fishing boats, sea islands and desert areas, and has a relatively good application value.
Owner:SUNSHORE SOLAR ENERGY IND +2

Device and method capable of detecting stripes of optical glass prefabricated member

The invention provides a stripe detection device and a stripe detection method capable of rapidly detecting the stripes of ellipsoidal aspheric pre-compressed prefabricated member. The device for detecting the stripes of the optical glass prefabricated member comprises a laser light source, a beam expanding system and a CCD image processing system in sequence according to a light path, wherein the CCD image processing system comprises a lens and a computer. According to the device, the strips at the inner part of the ellipsoidal aspheric pre-compressed prefabricated member are detected immediately through a stripe interference principle, and the relatively high detection precision can be achieved; the device structure is compact, the occupying space is small, the degree of automation is high, the resolution ratio effect is good, and the purpose of immediately rapidly detecting the stripes of the ellipsoidal aspheric pre-compressed prefabricated member can be achieved. According to the method, the glass does not need to be annealed and subjected to cold processing, a product can be detected immediately, the result can be obtained, site production process and parameters can be regulated timely, and the method can be implemented in an indoor limited space, the operation is convenient, and the detection efficiency is high.
Owner:CDGM GLASS LLC

Device and method for recovering and analyzing login password of computer operation system

A device for recovering and analyzing a login password of a computer operation system comprises a hardware portion and a software portion. The hardware portion comprises a display screen module, a key module, a storage module, a power management module, an interface module and a micro-programmed control unit (MCU) module connected with the display screen module, the key module, the interface module, the storage module and the power management module. The software portion comprises a data information obtaining module for obtaining data information of the computer operation system according to a user operation command, a password analyzing module for analyzing the obtained data information and a result exporting module. The device supports extracting and analyzing of the login password of various operation systems of personal computers (PCs) and notebooks. During use, different analyzing modes can be selected according to different requirements. Simultaneously, the device adopts the low-power-consumption technology, a product processor adopts a low-power-consumption single-chip microcomputer, a display screen adopts a liquid crystal display (LCD) which is low in electricity consumption, the whole size is small, and the weight is light.
Owner:XIAMEN MEIYA PICO INFORMATION

Device for generating sub-kHz low-frequency intensity difference compression based on cesium atom ensemble

The invention relates to a device for generating sub-kHz low-frequency intensity difference compression based on a cesium atom ensemble and mainly aims at solving the technical problems of high priceand large volume of an existing low-frequency compression state device. According to the technical scheme, the device for generating the sub-kHz low-frequency intensity difference compression based onthe cesium atom ensemble comprises a semiconductor laser, a single-mode optical fiber, reflectors, an optical beam splitter, an electrooptical modulator, a fabry-perot etalon group, lens assemblies,half-wave plates, a Glan laser prism, a cesium atom pool, a Glan-Thomson prism, a beam collector, a high-frequency signal generator, photoelectric detectors, a subtracter and a spectrum analyzer, wherein the semiconductor laser is arranged on the surface of an independent heat insulation platform; and a heat insulation cover covers to isolate the semiconductor laser and the platform from the external environment. According to the device, the low-frequency intensity difference compression of which the maximum compressibility is 6dB-1kHz can be obtained, the device is stable in performance and compact in structure and commercial production can be achieved.
Owner:SHANXI UNIV

Medical fine extractor for medicinal liquor

The invention belongs to the technical field of medicinal liquor making and particularly provides a medical fine extractor for medicinal liquor. The medical fine extractor comprises a tank body, a pressing module, a stirring module, a distilling module, a medicine residue collecting module and a crushing module, wherein the pressing module is arranged in the tank body and used for feeding soaked medicinal liquor to the distilling module for distillation; the stirring module is used for stirring the medicinal liquor in the medicinal liquor soaking process and before the medicinal liquor is pressed into the distilling module, so that effective components in medicinal materials overflow; the distilling module is located on the outer side of the tank body and used for distilling the medicinalliquor, the effective components in the medicinal liquor are extracted finely, and the effect of the medicinal liquor is improved; the medicine residue collecting module is located below the tank bodyand used for collecting and drying medicine residues; the crushing module is located above the tank body and used for crushing the medicinal materials. Crushing, soaking and distilling of the medicinal liquor can be realized, the effect of the medicinal liquor is improved, and collection of the medicine residues can be realized.
Owner:广德县桃州镇明莲蔬果种植家庭农场
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