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67results about How to "Small space size" patented technology

Optical system, oral cavity digital impression instrument equipped with optical system and image acquisition method

The invention relates to an optical system which comprises a light path transmitting subsystem, a scanning reflector (6) and an image receiving and processing subsystem. The light path emission subsystem comprises an illumination module (1), a light modulation module (4) and a curved prism (21). The curved surface prism comprises a light incident surface (21A), a reflection-transmission composite interface (21B) and a curved surface (21C) plated with a reflecting film, and is used for changing the direction of a light path and focusing the light path, so that the light path enters from the light incident surface, is reflected by the reflection-transmission composite interface, is reflected by the curved surface and is focused; and then the light is emitted from the reflection-transmission composite interface and enters the light modulation module at a specific angle. The invention also relates to an oral digital impression instrument equipped with the optical system. According to the optical system, the curved prism is used for replacing a traditional lens and reflector combination, the space size of the oral cavity digital impression instrument is remarkably reduced, and the requirements for miniaturization and portability are met.
Owner:SHANGHAI ALLIEDSTAR MEDICAL TECH CO LTD

Compact thermotank

The invention discloses a compact thermotank, and relates to the technical field of radar equipment, the compact thermotank comprises a thermotank body, the top of the thermotank body is movably provided with a top cover plate, the bottom of the thermotank body is provided with a temperature adjusting assembly, and the temperature adjusting assembly comprises a protective cover body arranged at the bottom of the thermotank body; the TEC semiconductor chilling plate is arranged in the protective cover body, the hot end part is arranged at the bottom of the TEC semiconductor chilling plate, the cold end part is arranged at the top of the TEC semiconductor chilling plate, and the hot end part and the cold end part are both of an integrated form-relieved tooth structure. The cold end fans are arranged at the top of the cold end part and distributed at intervals, the hot end fans are arranged at the two ends of the hot end part and distributed at intervals, a constant-temperature working environment is provided for the receiver through the temperature adjusting assembly arranged in the constant-temperature box body, the temperature noise of the receiver is reduced, the sensitivity is improved, and the reliability of the receiver is improved. The overall performance of the radar is enhanced, and the radar detection effect is improved.
Owner:ANHUI SUN CREATE ELECTRONICS

Integrated structure of turbine pump, main valve and fuel gas generator

The integrated structure of the turbine pump, the main valve and the fuel gas generator comprises the turbine pump, the turbine pump is of a barrel-shaped structure with the two ends open, the first end of the turbine pump is a first medium inlet, and the second end of the turbine pump is connected with a fuel gas generator flange; a movable valve element is installed in an inner channel between the turbine pump and the fuel gas generator. When the valve element moves to the first position, the inner channel is closed. When the valve element moves to the second position, the inner channel is opened; the structures of the turbine pump, the main valve and the fuel gas generator are improved, the improved turbine pump and the fuel gas generator are in flange connection, the main valve is installed in an internal channel of the turbine pump and the fuel gas generator, the integrated structure of the turbine pump, the main valve and the fuel gas generator is achieved, pipeline connection is avoided, and the space size and the assembly difficulty are reduced.
Owner:SHAANXI TIANHUI AEROSPACE TECH CO LTD

CNN-Transform-based hierarchical information fusion module and fusion method

The invention belongs to the technical field of image processing, and particularly relates to a hierarchical information fusion module and fusion method based on CNN-Transform, the hierarchical information fusion module comprises a local convolution module LPM, a global and local information feature fusion module GLAF-Mixer and a serial multi-scale forward feedback network SMFFN, the local convolution module LPM uses an inverse residual block to introduce inductive bias, and the global and local information feature fusion module GLAF-Mixer uses an inverse residual block to introduce inverse bias. A global and local information feature fusion module GLAF-Mixer uses a parallel lightweight global attention module and lightweight local information to extract features, global modeling information and local information are combined, and a serial multi-scale forward feedback network SMFFN uses a plurality of 3 * 3 depth separable convolution serial structures to extract multi-scale features. And the plurality of deep convolution outputs are fused. The capability of capturing multi-scale features is effectively improved, and the accuracy of the model is improved.
Owner:CEC ANSHI (CHENGDU) TECH CO LTD

Multi-layer composite structure underground wet spraying concrete mixing plant

The utility model discloses an underground wet-spraying concrete mixing plant with a multi-layer composite structure, and belongs to the technical field of mining. Comprising a gravel storage chamber, a dosing machine chamber, a stirrer chamber and an auxiliary material chamber which are sequentially communicated, and the height of a bottom plate of the stirrer chamber is lower than that of bottom plates of the dosing machine chamber and the auxiliary material chamber; the sandstone material storage chamber is communicated with the batching machine chamber through a forklift transportation connection way; a batching machine storage bin, a gravel weighing hopper and a horizontal conveying belt are arranged in the batching machine chamber, and the front end of the horizontal conveying belt extends into the stirrer chamber; the mixer chamber is communicated with the main slope ramp through the cement tanker linking way; a concrete mixing tank and a cement vertical tank are arranged in the mixer chamber; the auxiliary material chamber is internally communicated with the main slope ramp through a roadway, a cement horizontal tank, an additive tank and a mixing water tank are arranged in the auxiliary material chamber, and the additive tank and the mixing water tank are communicated to the upper part of the cement vertical tank through pipelines.
Owner:JINCHUAN GROUP NICKEL COBALT CO LTD +1

Automatic clothes folding machine

The utility model relates to the technical field of electric appliance manufacturing, and aims to provide an automatic clothes folding machine which comprises a rack, a clamping translation device, a width folding assembly, a clothes conveying system and a first lifting clamping device, and the clamping translation device, the width folding assembly, the clothes conveying system and the first lifting clamping device are arranged on the rack. The clamping translation device is configured to clamp clothes and move the clothes back and forth relative to the rack; the width folding assembly is located below the clamping translation device and is configured to fold the clothes in the width direction when the clamping translation device moves the clothes backwards; the clothes conveying system is connected with the width folding assembly and is configured to convey the clothes folded in the width direction. The first lifting clamping device is configured to clamp clothes and can lift and adjust the clothes relative to the conveying surface of the conveying system; and the conveying system is matched with the first lifting clamping device to fold the clothes folded in the width direction for at least one time in the length direction.
Owner:ZHONGSHAN RUISHENG METAL PRODUCTS CO LTD

Basin-type insulator infrared thermal imaging defect detection system and method

The invention discloses a basin-type insulator infrared thermal imaging defect detection system and method, and relates to the technical field of infrared thermal imaging detection, the basin-type insulator infrared thermal imaging defect detection system comprises an input module and a processing module; the input module is used for receiving an infrared thermal imaging image of the basin-type insulator and gradually generating image features through a plurality of convolution blocks; and the processing module performs up-sampling operation, and fuses the up-sampled feature map and the corresponding feature maps with different resolutions in the input module layer by layer through jump connection to generate a segmentation map of the insulator defect. According to the infrared thermal imaging defect detection method for the basin-type insulator, nondestructive detection is carried out, a target object does not need to be contacted, temperature information of the target object is provided, the target temperature is not disturbed, and temperature distribution is visual and visible.
Owner:GUIZHOU POWER GRID CO LTD

Heat dissipation structure of phased array antenna, phased array antenna and satellite platform

The present invention relates to the field of aerospace thermal control technology, and in particular to a heat dissipation structure of a phased array antenna, a phased array antenna and a satellite platform. The heat dissipation structure of the phased array antenna is used to dissipate heat for the phased array antenna of the satellite platform. The satellite platform includes a satellite cabin board. The heat dissipation structure of the phased array antenna includes a first heat pipe, a flat heat pipe and a second heat pipe. The first heat pipe is buried in the satellite cabin board. The flat heat pipe is arranged on the inner surface of the satellite cabin board to support the antenna assembly of the phased array antenna. A first protrusion is arranged on the flat heat pipe. The first protrusion is located in the satellite cabin board and the outer side surface of the first protrusion and the part of the flat heat pipe located outside the first protrusion are in contact with the first heat pipe. The second heat pipe is arranged on the inner surface of the satellite cabin board. The heat dissipation structure of the phased array antenna in the present invention occupies a small space, solves the heat dissipation problem of the antenna assembly, shortens the heat dissipation path, improves the heat dissipation efficiency, and ensures the normal operation of the phased array antenna on the satellite platform.
Owner:BEIJING COMMSAT TECH DEV CO LTD

An adjustable bend medical device and delivery system

PendingCN122297201AThin wallReduce the likelihood of hunched backApparatus instrumentsMedical device
This invention provides an adjustable bending medical device. The tube body includes an inner layer, a support layer, and an outer layer sequentially arranged from the inside out. An adjusting member and a reinforcing member are disposed between the inner layer and the support layer, both extending along the axial direction of the tube body. The adjusting member includes a main body segment and an adjusting section connected to the distal end of the main body segment. The distal end of the reinforcing member is aligned with the distal end of the main body segment. In a cross-section perpendicular to the central axis of the adjustable bending medical device, the cross-section of the reinforcing member includes an inner line segment adjacent to the adjusting member, the length of which is less than or equal to half the outer perimeter length of the cross-section of the adjusting member. An operating mechanism is connected to the proximal end of the tube body and is connected to the adjusting member to operate the adjusting member.
Owner:LIFETECH SCI (SHENZHEN) CO LTD

A potting heat dissipation structure

The utility model relates to a heat dissipation technical field, concretely relates to a pouring and sealing heat dissipation structure. A pouring and sealing heat dissipation structure, include: shell, the shell upper end opening, the opening place forms the flanging, element, the element is placed in the shell, the upper surface of element with the opening of shell is flush, the clearance between element and shell pours into the heat conducting glue, top heat conducting pad, top heat conducting pad is bonded and fixed in the flanging, the lower surface of top heat conducting pad is bonded with the upper surface of element. The technical problem of increasing cost and weight of pouring and sealing heat dissipation mode in the prior art to put the magnetic piece completely in the complex structure mounting groove pouring and sealing needs a large number of heat conducting glue.
Owner:WANBANG DIGITAL ENERGY CO LTD

Segmented relay type single-rail multifunctional stair climbing device suitable for old people

The segmented relay type single-rail multifunctional stair climbing device comprises a main rail, an auxiliary rail, a sliding table, a counterweight, a power device, an electric control system and an accessory, the auxiliary rail is arranged at the upper end of the main rail, the included angle between the auxiliary rail and the main rail is 145 degrees, the auxiliary rail is horizontally arranged relative to the ground, and the auxiliary rail is connected with the main rail. The main rail and the auxiliary rail are connected with the home-entry platform through expansion foundation bolts, the sliding table abuts against the outer side of the main rail, the sliding table vertically moves along the main rail, and the counterweight is arranged at the top of the main rail and moves vertically. The utility model belongs to the technical field of conveying machinery, and particularly provides an elevator which integrates the advantages of a pedal type elevator and a seat type elevator, is additionally provided with a cargo carrying function, is low in engineering cost and low in power-saving operation cost, integrates a step ladder and an elevator, and is convenient to transport. The space width of a traditional step ladder is reserved and increased to the maximum extent, and the segmented relay type single-rail multifunctional stair climbing device suitable for the old people is provided.
Owner:朱月桥

Centrifugal mechanical torque converter

PendingCN119123016ARealize stepless rotation speed changesmall space sizeFriction gearingsRadial motionDrive wheel
The invention relates to a centrifugal mechanical torque converter which solves the problems that an existing torque converter is complex in structure, large in mass size and high in cost. Comprising an input shaft, a driving wheel, a radial guide groove, a roller, a sleeve, a track cavity, an output shaft and a box body, and the input shaft and the output shaft are supported on the box body through bearings respectively; the driving wheel is fixedly mounted on the input shaft, and a plurality of radial guide grooves which are uniformly and symmetrically distributed are formed in the driving wheel; the pin rollers are placed in the radial guide grooves and can freely move along the radial guide grooves; the sleeve is fixedly mounted on the output shaft, and a multi-action curve track cavity is formed in the sleeve; the driving wheel is arranged in a track cavity of the sleeve and can rotate freely, and the track cavity regularly restrains the radial movement of the pin roller. The invention can be used for a comprehensive transmission part, realizes stepless rotation speed change of a transmission system, can also be used for transmission of simple equipment with small space size, and has the advantages of small volume, low cost and compact and simple structure.
Owner:BEIJING RUICHANG TONGCHUANG ELECTROMECHANICAL TECH CO LTD

A new type of seal device for a slurry pump

The utility model discloses a novel slurry pump sealing device relates to mechanical seal technical field, including rotating part and stationary part: rotating part is by medium side dynamic ring, shaft sleeve and pump shaft, and medium side dynamic ring is through the pin peg and is equipped with in the outer of shaft sleeve, and shaft sleeve is pressed in the impeller end face through the hug ring, stationary part contains medium side static ring, medium side push ring and atmospheric side gland, and medium side static ring is connected with push ring through the pin peg, and push ring is axially connected with atmospheric side gland through transmission pin, and atmospheric side gland is fixed in the pump cover. The spring is arranged between atmospheric side gland and medium side push ring, and medium side dynamic ring and static ring are pushed and abut tightly and seal. Medium side dynamic ring diameter D1 is less than medium side push ring diameter D4, and greater than medium side static ring diameter D3, forms positive balance - reverse unbalanced structure, and increases the closed force, and atmospheric side seal is established between stationary part and shaft sleeve, and contains atmospheric side dynamic ring seal that rotates with shaft sleeve, atmospheric side static ring seal that is fixed in atmospheric side gland, compact structure, saves the space.
Owner:CHENGDU XINDE SEAL CO LTD

Clothes folding machine and clothes folding method thereof

The invention relates to the technical field of electric appliance manufacturing, and aims to provide a clothes folding machine which comprises a rack, a clamping translation device, a width folding assembly, a clothes conveying system and a first lifting clamping device, and the clamping translation device, the width folding assembly, the clothes conveying system and the first lifting clamping device are arranged on the rack. The clamping translation device is configured to clamp and move clothes back and forth; the width folding assembly is used for folding the clothes moving backwards in the width direction; the clothes conveying system comprises a first conveying mechanism and a second conveying mechanism which are arranged up and down; part of the clothes folded in the width direction is moved backwards to the upper surface of the first conveying mechanism through a clamping translation device, and then the first conveying mechanism conveys the clothes backwards to the surface of the second conveying mechanism; the first lifting clamping device is configured to clamp clothes and adjust the clothes in a lifting manner relative to the upper surface of the second conveying mechanism; the second conveying mechanism is matched with the first lifting clamping device to fold the clothes folded in the width direction in the length direction at least once. The invention also aims to provide a clothes folding method of the clothes folding machine.
Owner:ZHONGSHAN RUISHENG METAL PRODUCTS CO LTD

Movable operation platform for decoration of cantilever structure part

The utility model discloses a movable operating platform for overhanging structure part decoration, which comprises a base frame, walking wheels are arranged at four corners of the lower end face of a base plate of the base frame, cantilever beams are respectively arranged on two opposite sides of the upper end face of the base frame horizontally and outwards, and an operating platform is fixedly arranged on the front end sides of the two cantilever beams. Inclined supporting rods are arranged between the front ends of the two cantilever beams and the two sides of the base frame, a walking ladder for people to go up and down is arranged between the front end of a base plate of the base frame and the operation table along the inclined supporting rods, a step transverse pull rod of the walking ladder is welded and fixed to the inclined supporting rods, and a balance weight is arranged on the rear end side of the base plate of the base frame. The balance weight is positioned through a positioning vertical rod arranged on the base frame chassis, the weight of the balance weight is larger than the weight borne by the operation table, lifting supporting legs are arranged beside the walking wheels at the four corners of the lower end face of the base frame chassis respectively, and the lifting supporting legs are used for positioning and supporting the base frame in the working process.
Owner:CHINA XINXING BAOXIN CONSTR CORP

Cooling and lubricating structure for power coupling device and power coupling device

The present invention provides a cooling and lubricating structure for a power coupling device and a power coupling device, comprising an input shaft oil passage arranged in an input shaft, a first oil hole arranged on the outer wall of the input shaft, a second oil hole arranged on the outer wall of the input shaft, a first oil circuit connected to the first oil hole at one end, and a second oil circuit connected to the second oil hole at one end, the other end of the first oil circuit extends to the planetary gear of the planetary row, and the other end of the second oil circuit extends to the synchronous element of the clutch. The cooling and lubricating structure has two cooling and lubricating paths, the first path is that the oil enters the input shaft oil passage and then passes through the first oil hole and the first oil passage to reach the position of the planetary gear to cool and lubricate the planetary gear; the second path is that the oil enters the input shaft oil passage and then passes through the second oil hole and the second oil passage to reach the position of the synchronous element of the clutch to cool the synchronous element of the clutch. The cooling and lubricating structure can reduce the spatial size of the system and reduce the weight of the system.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Multi-path grading harmonic wave improving and dimming circuit

The invention provides a multi-path graded harmonic improving and dimming circuit. The multi-path graded harmonic improving and dimming circuit comprises a two-stage filter circuit, a bridge rectifier circuit, a suppression circuit, a power factor correction circuit, a first power supply circuit, a second power supply circuit and a power supply chip, the input end of the two-stage filter circuit is used for being connected with an AC port, the output end of the two-stage filter circuit is connected with the input end of the bridge rectifier circuit, the output end of the bridge rectifier circuit is connected with the input end of the suppression circuit, the output end of the suppression circuit is connected with the input end of the power factor correction circuit, and the output end of the power factor correction circuit is used for being connected with a load. The first power circuit is connected with the suppression circuit and used for providing power for the suppression circuit; and the second power supply circuit is connected with the power factor correction circuit and is used for supplying power to the power factor correction circuit. The multi-path grading harmonic wave improving and dimming circuit is low in cost, small in occupied space and low in overall power consumption.
Owner:SONG RES ELECTRONICS TECH

BOPET (Biaxially Oriented Polyethylene Terephthalate) non-silicon release film with high residual rejection rate and adjustable release force and preparation method of BOPET non-silicon release film

The invention provides a BOPET (Biaxially Oriented Polyethylene Terephthalate) non-silicon release film with high residual rejection rate and adjustable release force and a preparation method of the BOPET non-silicon release film. The BOPET non-silicon release film with the high residual rejection rate and the adjustable release force comprises a BOPET base film and a non-silicon release layer located on at least one side of the BOPET base film. The preparation method comprises the following steps: adding corona and on-line coating procedures between longitudinal stretching and transverse stretching in the process of producing the BOPET film by a direct melting method so as to form a non-silicon release layer on the surface of at least one side of a longitudinal stretching product, and then sequentially carrying out a series of procedures of transverse preheating, stretching, curing and shaping, and traction and rolling to obtain the BOPET non-silicon release film. The BOPET non-silicon release film provided by the invention has the advantages of uniform coating thickness, stable release performance after long-term placement, high residual adhesion rate, low aging, simple production process, high production yield per unit time and low cost.
Owner:YINGKOU KANGHUI PETROCHEM

High-strength, high-modulus and high-toughness shape memory poly (benzimidazole-benzoxazole) imide material with controllable photodegradability and preparation method thereof

The invention discloses a high-strength, high-modulus and high-toughness shape memory poly (benzimidazole-benzoxazole) imide material with controllable photodegradability and a preparation method thereof, and belongs to the technical field of multifunctional polymers. The multi-block shape memory poly (benzimidazole-benzoxazole) imide polymer with a photodegradation group is obtained by performing two-step polycondensation and imidization on heteroaromatic diamine containing imidazoles and oxazoles, biphenyl dianhydride and photosensitive group Texamic acid, the tensile strength of the polymer at normal temperature is 262.2 MPa, the Young modulus is 6.0 GPa, the elongation at break is 27.9%, and the polymer can be applied to the field of photodegradation of the polymer. In the shape recovery stage, the energy storage modulus is 100 MPa, the glass transition temperature (Tg) is 380 DEG C, the shape memory performance is achieved, the shape fixing rate is 99%, and the shape recovery rate is 98%. By controlling the proportion of the chemical block photosensitive groups, the polymer has the light-controlled degradation characteristic, and is applied to the fields of light-degradable expandable flexible film space capsules, controllable light-degradable self-adaptive deformation flexible sensors and the like.
Owner:HARBIN INST OF TECH +1

Parameter-controllable landslide test device

The invention provides a parameter-controllable landslide test device, and the device comprises a track panel which comprises a track; the box body comprises a box body power wheel and a rolling bottom plate for loading a test object, and the box body power wheel is located on the track; the driving device is arranged on the box body and is used for driving the box body power wheel to drive the box body to move along the track based on a preset speed; the movable top plate is arranged at the top of the box body; one end of the shape keeping module is detachably fixed on the movable top plate, and the other end of the shape keeping module is used for keeping the outline shape of the test object; wherein when the box body moves to a preset position of the track along the track, the movable top plate moves to separate the form keeping module and the movable top plate, and the test object continues to move on the rolling bottom plate along with the box body based on the preset speed so as to carry out a landslide test.
Owner:TONGJI UNIV

Servo driver encoder interface sinking structure

The utility model discloses a servo driver encoder interface sinking structure which comprises a servo driver control panel with an encoder interface, and the encoder interface is arranged on the long side of the side face of the control panel. A cover plate of the interface slot is arranged on one side of the encoder of the control panel, and a side metal plate cover plate is arranged on one side of the front surface of the control panel. An encoder interface is designed into the servo driver in a sinking mode, and a sinking type interface groove is formed in a shell of the servo driver. A protective cover is installed in the groove and fixed through a buckle. The encoder interface is fixed on the reinforcing sheet metal part through a screw, and the reinforcing sheet metal part is fixed on the side sheet metal cover plate through a countersunk head screw. According to the design, the front space of the driver is saved, and the protection performance, the installation stability, the durability and the reliability of the interface are improved.
Owner:NINGBO PHASE MOTION CONTROL

A fan with an inner rotor middle flange motor

The application relates to a fan with an inner rotor middle flange motor, which comprises a frame and an impeller, the frame is provided with an inner rotor motor, a flange is arranged at the middle position of the inner rotor motor, the flange is integrally formed with the surface of the inner rotor motor, one side of the flange close to the frame is connected with the frame, one end of an output shaft contained in the inner rotor motor penetrates through the frame and is connected with the impeller at the side close to the inner rotor motor, a recessed groove is arranged at the side close to the motor of the impeller, and one end of the output shaft contained in the inner rotor motor is located in the recessed groove on the impeller. According to the application, the impeller and the output end of the inner rotor motor are located between the frame, the overall axial length of the fan is greatly shortened, the middle fixing mode of the middle flange further avoids the occupation of extra space by the end support structure, the overall volume of the fan is more compact, the installation space is saved, and the space size of the whole fan is reduced.
Owner:SHANGHAI SHIYILUO FAN CO LTD

Hydraulic control system for variable-amplitude oil cylinder of lightering crane and control method of hydraulic control system

The invention discloses a hydraulic control system and method for a variable-amplitude oil cylinder of a lightering crane, and relates to the technical field of hydraulic control systems of cranes. The hydraulic control system comprises a hydraulic oil output assembly, the hydraulic oil output assembly outputs hydraulic oil in an oil tank to a port P, and the port P is connected to a first electromagnetic control valve and a second logic valve; the outlet end of the second logic valve is connected to the first control valve, the other connecting port of the first control valve is connected to the oil cylinder small cavity, and the first control valve is used for forward or reverse flow of hydraulic oil; the oil cylinder large cavity is connected to a first logic valve and a fourth electromagnetic control valve, and the other end of the first logic valve is connected with an oil return tank; the outlet end of the second logic valve is further connected to a second electromagnetic control valve and a third logic valve, the outlet end of the third logic valve is connected to the oil cylinder large cavity, and hydraulic oil enters the oil cylinder small cavity through the first control valve from the outlet of the second logic valve or enters the oil cylinder large cavity through the third logic valve. The structure is simple, and the effect of compactly arranging the amplitude variation system is achieved.
Owner:NANTONG RAINBOW HEAVY MACHINERIES

A high-precision polishing machine tool

The present invention provides a high-precision polishing machine tool, which belongs to free-form surface polishing technology equipment. The polishing machine tool includes a grinding head adjustment device, which is composed of a polishing airbag grinding head, a first hydraulic chuck, a BH connecting tower, an electric spindle H axis, a first pulley, a second pulley, a B axis motor, an AB connecting tower, an A axis rotary joint and an A axis motor. The present invention proposes a multi-degree-of-freedom, lightweight, high-workpiece axis speed free-form surface high-precision polishing machine tool, which can realize the movement of the spindle to any position within the size limit of the machine tool through multi-degree-of-freedom movement, and complete the high-precision polishing of the free-form surface.
Owner:张文馨

Manufacturing method of wireless bonding piezoelectric TOF sensor

The invention belongs to the field of sensors, and particularly relates to a manufacturing method of a wireless bonding piezoelectric TOF sensor, which comprises the following steps: etching a circular small hole in the bottom of a silicon substrate; a circular cavity is etched on the front surface of the silicon substrate with the small circular hole, and the circle center of the circular cavity is coaxial with the circle center of the small circular hole; a silicon wafer is bonded and covered behind the circular cavity in a silicon-silicon bonding mode; carrying out thinning and polishing treatment on the newly bonded silicon wafer; sequentially growing a first molybdenum layer, a piezoelectric layer and a second molybdenum layer on the thinned and polished silicon wafer; a pattern is arranged on the silicon wafer; leading out an upper electrode and a lower electrode of the piezoelectric layer on the setting pattern, and growing a gold ball on the lower electrode; building an ASIC circuit, and connecting the ASIC circuit with the upper electrode and the lower electrode of the piezoelectric layer through gold balls to form a wireless bonding piezoelectric TOF sensor; the invention solves the problem of poor reliability of the existing tin sealing technology and the like.
Owner:CETC CHIPS TECH GRP CO LTD

Integrated circuit element integrating four basic passive component functions and its design method and preparation method

The present invention discloses an integrated circuit element integrating four basic passive component functions and a design method and a preparation method thereof. The high-performance integrated circuit element selects a suitable single crystal material with a layered structure, room temperature single-phase magnetoelectric coupling anisotropy, a microscopic spin-orbit charge coupling mechanism, ferroelectric polarization characteristics and proton conductivity as a carrier, and applies different voltage conditions along electrodes in different directions. The four basic passive circuit component functions of a memristor, a proton-type inductor, a linear resistor and a capacitor can be realized in a single basic circuit element, breaking the spatial barriers between basic passive circuit elements, significantly reducing energy consumption and delay, greatly improving the upper limit of the miniaturization and high performance development of integrated circuits, and having great potential in the field of integrated circuits.
Owner:NANJING UNIV

Broadband compact type circular polarization probe

The utility model discloses a broadband compact type circularly polarized probe, and relates to the technical field of circularly polarized antennas. The circular polarization probe comprises a feed part and a radiation part, a standard waveguide channel is formed in the feed part, a parallel waveguide channel is formed in the radiation part, the standard waveguide channel is communicated with the parallel waveguide channel, the length of the parallel waveguide channel is smaller than one wavelength, and the radiation part is communicated with the standard waveguide channel. And a slot is formed in the wide edge of the outer side port of the parallel waveguide channel. The circularly polarized probe is simple in structure, the space size and the use difficulty can be greatly reduced in practical application and array formation, and the practical processing and use cost is reduced.
Owner:胡南

Window opener

The invention relates to a clutch mechanism of a window opener. The window opener comprises a machine shell, a driving mechanism and a transmission mechanism. The window opener further comprises a clutch mechanism, the clutch mechanism is arranged between the driving mechanism and the transmission mechanism, and at least part of the driving mechanism slides relative to the machine shell so that a transmission path between the transmission mechanism and the driving mechanism can be disconnected or connected through the clutch mechanism. At least part of the driving mechanism slides, so that the clutch mechanism disconnects a power transmission path between the driving mechanism and the transmission mechanism, the defect of gear meshing between the transmission mechanisms can be avoided, and the space size of the machine shell can be reduced. Part of the driving mechanism slides to realize on-off control, and the sliding part of the driving mechanism can adopt an automatic alignment structure, so that the defects of impact noise and unsmooth sliding are reduced.
Owner:XIJIA (ZHEJIANG) INTELLIGENT TECHNOLOGY CO LTD

Brain wave acquisition and analysis method for sleep staging

PendingCN119548153AImprove stabilityeffective noise reductionBiological modelsSensorsSleep timeSleep staging
The invention relates to the technical field of intelligent brain waves, and particularly provides a brain wave acquisition and analysis method for sleep staging, which comprises the following steps: S1, acquiring brain wave initial data, and sequentially carrying out downsampling processing, scaling processing, Gaussian filtering processing, Gaussian smoothing processing and data overlapping filling processing on the initial data; s2, carrying out labeling operation on the processed brain wave data; s3, collecting a human body sleep image, and judging the human body sleep time in combination with the brain wave data; s4, acquiring a time point of deep sleep of the human body; s5, building a sleep neural network to judge the sleep state of the human body; according to the method, data collection and processing and label creation are completed through the steps S1-S5, and then a sleep neural network of a user is trained by using a data set and the label, so that the judgment of the sleep stage of the human body by using a machine is completed, the accuracy of sleep stage division is improved, effective sleep information is identified, and the monitoring of the whole sleep process is realized.
Owner:WUXI TEVENSTAR HEALTH TECH CO LTD

Transmission structure of hydraulic torque converter for heavy gas turbine

ActiveCN119532401AReduce centering failuressmall space sizeFluid gearingsElectric machineGear wheel
The invention discloses a transmission structure of a hydraulic torque converter for a heavy gas turbine, and relates to the technical field of gas turbine starting. The problems that the centering failure rate and the mounting and dismounting complexity of the hydraulic torque converter can be greatly increased through a conventional transmission structure and a pipeline arrangement method, the product performance is affected, meanwhile, the boundary dimension of the hydraulic torque converter is increased, and the cost is increased are solved. The hydraulic torque converter transmission structure adopting the structure can meet the starting characteristic of a gas turbine, can be matched with the rotating speed of a motor, the gas turbine and a machine belt lubricating oil pump, and can reduce centering faults. By the adoption of the oil way arrangement method, high-pressure working oil needed by a pump wheel and a turbine and low-pressure lubricating oil needed by speed ratio matching gears and bearings of a motor and a gas turbine can be met at the same time, meanwhile, the space size is reduced, and cost is saved. The method is suitable for the technical field of heavy gas turbine starting.
Owner:NO 703 RES INST OF CHINA SHIPBUILDING IND CORP