Patents
Literature

72results about How to "Small device size" patented technology

MEMS (Micro Electro Mechanical System) microphone and pressure integration sensor, and manufacturing method thereof

The invention relates to an MEMS (Micro Electro Mechanical System) microphone and pressure integration sensor and a manufacturing method thereof. The sensor provided by the invention comprises a first substrate and a second substrate, wherein the first substrate is provided with an induction film of a capacitance pressure sensing unit, a sensitive film of a microphone unit and a first bonding layer on the surface of the first substrate; the second substrate is provided with a dielectric layer between conductors, a conductor wiring layer positioned in the dielectric layer between the conductors and/or a second bonding layer on the surface of the second substrate; the second substrate and the first substrate are oppositely arranged and fixedly connected through the first bonding layer and the second bonding layer; and the patterns of the first bonding layer and the second bonding layer correspond to each other and are conductive materials. In the MEMS microphone and pressure sensor and the manufacturing method thereof provided by the invention, the capacitance pressure sensing unit and the microphone unit through the two substrates, thus the sensor and method provided by the invention are suitable for chip structures produced in a large scale and integrated with various MEMS sensors, are beneficial to the compatibility with an integrated circuit process, have the advantages that the standardization of a manufacturing process and a packaging process is enhanced, the volumes of devices are small, the signal-to-noise ratio performance is excellent, and the interference resistance is high.
Owner:MEMSEN ELECTRONICS

Replacing device for battery boxes of electric vehicle

The invention provides a replacing device for battery boxes of an electric vehicle, which is used for taking down one undercharged battery box from the vehicle, conveying the undercharged battery box to a battery transfer rack or conveying one fully-charged battery box on the battery transfer rack, and mounting the fully-charged battery box on the vehicle. The battery boxes don't need to rotate when being replaced by the device, so that replacing time is saved, and the problem that a large rotating space is needed for replacing the battery boxes is solved. The device comprises a translational device, a mechanical arm and a lifting device, the mechanical arm has a bidirectional moving function, namely, the mechanical arm is capable of extending along the vehicle direction and extending along a battery rack, and two rows of rollers are arranged on the mechanical arm so as to be convenient for drawing off the battery boxes. The device has the advantages that the device consisting of various conventional products is lower in manufacture cost, small in size, flexible in action and fine in universality, the required moving passage width is obviously decreased, and occupied area for replacing is saved.
Owner:BEIJING STATE GRID PURUI EXTRA HIGH VOLTAGE POWER TRANSMISSION TECH CO LTD +1

Rotary-type compound nanometer power generator

The invention provides a rotary-type compound nanometer power generator. The rotary-type compound nanometer power generator comprises a friction nanometer power generation assembly and a magnetic-electric sensing power generation assembly, wherein the friction nanometer power generation assembly comprises a rotor and a stator which are provided with a command rotation shaft, a friction layer is arranged on the lower surface of the rotor and is formed by outwards and radially arranging a plurality of friction units taking the rotation shaft as a circle center, an electrode layer of the stator comprises a first electrode and a second electrode which are formed by outwards and radially arranging a plurality of first electrode units and a plurality of second electrode units at intervals in the same plane from the rotation shaft, electron gain-loss capability difference exists between the friction units and the upper surface material of the stator, a magnet part and a coil part of the magnetic-electric sensing power generation assembly are separately arranged on the rotor and the stator, and under the effect of an external force, induction potential difference is generated between the two electrodes, and meanwhile, induction current is generated in the coil part. The power generator provided by the invention can acquire current output with milliamperes and can be used for directly supplying power to a small-sized power utilization device.
Owner:BEIJING INST OF NANOENERGY & NANOSYST

Conduit and guide wire coordinated operation interventional robot and control method thereof

The invention discloses a conduit and guide wire coordinated operation interventional robot and a control method thereof, and belongs to the field of minimally invasive blood vessel interventional operation. The system comprises an operation platform, a conduit controller and a guide wire controller which are arranged on the operation platform; the operation platform comprises a platform main beam, two platform connecting blocks are arranged on the operation platform through a secondary linear guideway, and a conduit controller and a guide wire controller are respectively installed; the platform connecting blocks are driven through a platform driving mechanism; the conduit controller comprises a main body part and a conduit clamping mechanism for holding the conduit; the guide wire controller comprises a clamping mechanism, the clamping mechanism comprises a sleeve, a braking piece and a clamping piece, after the clamping piece with a clamping end is loaded in the braking piece, the braking piece is connected with the sleeve in a threaded mode, and the clamping end clamps the guide wire as driven by the relative rotation of the braking piece and the sleeve. The conduit controller and the guide wire controller are installed the on a mobile platform through the system, controls are applied on the conduit and the guide wire respectively, and the coordinated operation of the conduit and the guide wire is completed by the coordination of the system and the control of the operation platform.
Owner:SHENZHEN INST OF ADVANCED BIOMEDICAL ROBOT CO LTD

Device and method for high-throughput, continuous and rapid preparation of alloy sample

The invention relates to a device and method for high-throughput, continuous and rapid preparation of an alloy sample. The device comprises a rotating system, a dispensing system, a heating and melting system, a cooling and solidifying system, a sampling system and a PLC control system; a dispensing zone, a heating and melting zone, a cooling and solidifying zone and a sampling zone are located ona rotating table. A container placed above the dispensing zone is controlled by the PLC and dispenses the alloy to a crucible which is rotated to the zone according to a preset alloy distribution ratio; a melting cavity and a cooling device respectively placed above the heating and melting zone and the cooling and solidifying zone are respectively used for melting and solidifying the alloy in thecrucible; a sample push-out device placed under the sampling zone is used for taking out the solidified sample from the crucible. According to the device and method for high-throughput, continuous and rapid preparation of an alloy sample, a circular-type alloy sample preparation integrating heating and melting, cooling and solidifying, sampling can be realized on the rotating table. The device iscompact in structure and high in automation degree, the time for raw material dispensing, multi-furnace smelting and preparation is shortened, and high-throughput, continuous and rapid preparation ofthe alloy sample can be realized.
Owner:UNIV OF SCI & TECH BEIJING

Pipe-to-soil potential excessively-negative control method and device for buried pipeline

ActiveCN104216452ASolve the instantaneous large interferenceSmall device sizeElectric variable regulationNegative controlSpurious emission
The invention relates to a pipe-to-soil potential excessively-negative control method and device for a buried pipeline which suffers from DC spurious emission interference. A voltage reference source is used as a signal collecting comparison and triggering control circuit to trigger and control a based threshold value; when the pipe-to-soil potential collected by the signal collecting comparison and triggering control circuit A02 exceeds the specified value of the threshold value, an operational amplifier in the circuit outputs in the forward direction, a photoelectric coupler is triggered and connected, and a reverse compensation control circuit A03 is triggered to start applying a forward current to the pipeline; when the pipe-to-soil potential collected by the signal collecting comparison and triggering control circuit A02 has already returned within the allowed range of the set threshold value, the operational amplifier is free of output, the photoelectric coupler is not triggered, optoelectronic isolation takes effect, trigger control is canceled, and the reverse compensation control circuit A03 stops working. The pipe-to-soil potential excessively-negative phenomenon due to the fact that the pipeline suffers from DC interference is avoided, and the hydrogen brittleness and coating stripping danger of the pipeline can be eliminated.
Owner:PIPECHINA SOUTH CHINA CO

Wearable recorder for recording construction site conditions

The invention discloses a wearable recorder for recording construction site conditions. The wearable recorder comprises a wearable mobile terminal and a service terminal, wherein the service terminal is connected with the wearable mobile terminal; the wearable mobile terminal comprises a power supply, a communication device, a GPS module, an RFID (radio frequency identification) module, a camera and a wireless transmission module, and is connected to the service terminal through the wireless transmission module. Due to wireless transmission, wiring and the size of the wearable recorder are reduced, and the wearable recorder serving as a monitoring device can move along with a working personnel, so that the monitoring effect of the wearable recorder is better than that of the conventional monitoring device arranged on a construction site; moreover, by means of distributed servers, real-time and dynamic recording of the personnel on the construction site can be realized, the data reading speed is greatly accelerated, and fragmented information can be displayed in a concentrated manner, so that the emergency command capability is enhanced, and the management efficiency is improved. The recorder can be widely applied to the field of engineering monitoring.
Owner:GUANGZHOU CONSTR QUALITY & SAFETY TESTING CENT +1

Combined multiphase flow fluid measurement system

The invention relates to a combined multiphase flow fluid measurement system. The system comprises a venturi and microwave sensor integrated module, an electromagnetic tomography module and a data acquisition and processing module; the venturi and microwave sensor integrated module comprises a venturi part and a microwave sensor part; the venturi part comprises a venturi tube, and a pressure tapping module, a pressure sensing module and a temperature sensing module which are arranged on the venturi tube; the venturi tube comprises an upstream pipeline, a contraction section, a throat part, anexpansion section and a downstream pipeline; and the electromagnetic tomography module is positioned at the throat part of the venturi tube and is close to the upstream pipeline. According to the invention, the electromagnetic tomography technology, the microwave detection technology and the venturi are combined, and the multiphase flow and the moisture content are solved by utilizing the signal combination of each sensor; the whole measuring system has no parts invading the interior of the pipeline, has no radioactive source, and has the characteristics of safety, environmental protection, non-invasion, non-contact, no flow pattern influence and no scaling influence.
Owner:深圳市联恒星科技有限公司 +1

Magnetic core-shell microcapsule generation method based on surface acoustic wave microfluidic device

ActiveCN112371065ASmall device sizeGenerating core-shell droplets uniformlyMicroballoon preparationMicrocapsule preparationInterdigital transducerAcoustic radiation force
The invention discloses a magnetic core-shell microcapsule generation method based on a surface acoustic wave microfluidic device. The surface acoustic wave microfluidic device comprises a piezoelectric substrate, an arc-shaped interdigital transducer is arranged on the piezoelectric substrate, and a PDMS micro-channel system is attached to the upper portion of the piezoelectric substrate; and thePDMS micro-channel system comprises a first-stage T-shaped channel and a second-stage cross-shaped channel. The method comprises the following steps: adjusting the flow rates of an inner phase, an intermediate phase and an outer phase, shearing the inner phase into micro-droplets at a communicating port of a T-shaped flow channel by the intermediate phase, and shearing the intermediate phase containing the inner phase droplets into micro-droplets with a core-shell structure at a communicating port of a cross-shaped flow channel by the outer phase. The arc-shaped interdigital transducer enables sound radiation force generated by surface acoustic waves to act on the interface of the inner phase and the intermediate phase, so that the interface is deformed, the size and the shell thickness of liquid drops of the inner phase are regulated and controlled, and finally, the magnetic core-shell microcapsules are formed after irradiation of an ultraviolet lamp. According to the invention, thegeneration size and the shell thickness of the core-shell magnetic microcapsule can be flexibly regulated and controlled in real time.
Owner:XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products