13 results about "Fluidics" patented technology

The utility model relates to a jet flow type wind and rain simulation integrated device, relates to injection device field. Jet flow type wind and rain simulation integrated device includes bottom support, connects the connecting flange in bottom support top, is detachably connected through the bolt along the circumferential interval arrangement and is connected in the support seat of connecting flange top, connects the rotary seat in support seat top, connects the U shape's fan support in rotary seat top, can rotate and be connected in the fan of fan support along vertical plane, annular shower pipe and water pump connected in bottom support, and the outlet of shower pipe and fan is coaxial arrangement and is connected, and the inner wall of shower pipe is equipped with a plurality of shower holes along its circumferential interval arrangement, and the water inlet of water pump is connected with the water inlet pipe, and the water outlet of water pump is connected shower pipe through the water outlet pipe equipped with flow control valve, and the water outlet pipe is equipped with heater. Jet flow type wind and rain simulation integrated device can simulate the test of unmanned plane under different air temperature wind and rain environment, can increase the authenticity of different season training environment simulation.

The present disclosure relates to a fluidics system with vacuum sampling. The fluidics system comprises a flow cell, a sampling subsystem, a sheath subsystem, a waste subsystem and a compressed air subsystem. The sampling subsystem is coupled with an inlet of the flow cell and provides sample fluid to the flow cell. The sheath subsystem is coupled with the inlet of the flow cell and provides sheath fluid to the flow cell. The waste subsystem is coupled with an outlet of the flow cell, and the sheath fluid and the sample fluid are discharged from the waste subsystem after passing through the outlet of the flow cell. The compressed air subsystem is coupled with the sheath subsystem and provides compressed air to the sheath subsystem. Further provided are a sample processor and a method for controlling a sample flow rate in the sample processor according to the present disclosure. The fluidics system, the sample processor and the method for controlling the sample flow rate in the sample processor according to the present disclosure can achieve significantly improved control accuracy.

The present invention relates to an integrated centrifugal device and method for analyte processing, particularly for the separation, enrichment, labeling, and analysis of nanovesicles such as extracellular vesicles (EVs). The device leverages a compact, rotatable substrate to execute multi-step assay protocols that may include chromatographic separation, centripetal fluid transport, immuno-capture, and protein labeling, all under low-speed centrifugal conditions. The device architecture enables automated, hands-free operation without requiring ultracentrifugation or specialized personnel. Fluidic modules including sedimentation, chromatography, displacement, and multiple assay chambers may be functionally integrated through a series of valves, channels, and immiscible liquid-based displacement mechanisms, facilitating precise sample handling, minimal loss, and multiplexed analysis.

Systems and methods are disclosed for measuring fluid pressure in an ophthalmic surgical system. An example system comprises a fluid flow path and a pressure sensor system for measuring pressure in the fluid flow path. The pressure sensor system comprises a conductive, movable diaphragm having a first side and a second side, the first side of the diaphragm facing the fluid flow path, and an eddy current position sensor positioned on the second side of the diaphragm without contacting the diaphragm. The eddy current position sensor comprises a position sensor coil activatable by high frequency alternating current and signal conditioning electronics capable of sensing inductance or impedance or resonant frequency variation in the position sensor coil as a gap between the diaphragm and the position sensor coil changes and of translating that variation into a displacement signal correlated to fluid pressure. A method of measuring fluid pressure may be performed using one or more of the systems described herein.

The invention provides a coupled jet flow quality detection device, a coupled jet flow quality detection method, a coupled jet flow quality detection system and a computer readable storage medium. The quality detection device for the coupling jet flow comprises a light-transmitting workpiece simulation piece which is located at the cross section position of the coupling jet flow; the first sensor is positioned below the light-transmitting workpiece simulation piece and is used for analyzing the light beam quality of the coupled jet flow; and the second sensor is positioned obliquely above the light-transmitting workpiece simulation piece and is used for acquiring image and / or video data of the coupled jet flow. According to the quality detection device for the coupling jet flow, the quality state of the light-water-gas coupling jet flow can be effectively detected, so that the situation that a machined workpiece is scrapped due to the stability problem of the coupling micro jet flow is avoided, the machining efficiency is improved, and losses generated by machining are reduced.

This invention discloses a shaftless pump-jet mixing and conveying liquid preparation tank, belonging to the field of liquid preparation tank technology. It includes: a tank body and a lower head disposed at the bottom of the tank body; a shaftless pump-jet agitator disposed at the bottom of the lower head, comprising: a guide tube disposed at the lower head, the guide tube communicating with the inner cavity of the tank body through the lower head, the guide tube having a liquid outlet; a drive source and a stirring impeller, both installed inside the guide tube, the drive source located around the stirring impeller and the two connected by magnetic coupling for non-contact drive; when the stirring impeller rotates forward, it pumps the material in the lower head upward to the tank body for mixing; when the stirring impeller rotates in reverse, it pushes the material in the inner cavity of the tank downward to the liquid outlet for outward conveying. This application combines the outstanding advantages of shaftless motor propulsion technology with the low noise of pump-jet technology, which can both leverage the fluid dynamics advantages of pump-jet technology and eliminate shaft noise, thus having broad development prospects.

The present application relates to the technical field of gas explosion protection, and particularly relates to a jet field analysis method, a coordinate positioning method and a system based on mobile guide rail technology. The present application is based on the space axis symmetry theory and the boundary wave theory of gas leakage jet field, combined with remote control mobile technology and precise leakage field concentration testing technology, and proposes a jet field analysis method based on mobile guide rail technology; to realize accurate positioning, high reliability, without human intervention, thus reducing the experimental cost and improving the safety; can effectively avoid the existing technology, which generally adopts experimental test or data simulation, has a large deviation, low reliability and weak guiding significance for the actual scene; the analysis results are effectively used in the actual application of gas jet, to provide effective accident prevention measures for gas leakage, and to accurately obtain the jet field information at the same time of the accident, to determine the related information of the leakage point, and to timely and effectively position and rescue.

The jet-based ducted fan fluid thrust vector propulsion system belongs to the field of aviation power technology, and the system comprises an air inlet, a rotor, a stator and a tail nozzle arranged in series along an axis, and a duct flow channel is formed inside; a plurality of jet exciters in annular array distribution are embedded in the inner wall surface of the tail nozzle expansion section. The jet exciter is composed of a vibrating diaphragm and a resonance cavity, and an external control system outputs a high-frequency alternating signal to drive the vibrating diaphragm to vibrate at a high frequency, so that the gas in the cavity is periodically sucked and sprayed, forming a high-speed jet with zero net mass flow. The jet injects energy into the main flow boundary layer, induces the main flow to deflect based on the Coanda effect, and realizes omnidirectional thrust vector control. The present application does not need a mechanical deflection rudder surface and an external air source pipeline, has the advantages of compact structure, light weight, response without delay, low energy loss, and is suitable for electric vertical take-off and landing aircraft and tilting ducted fan propulsion systems.

The application discloses a micro-fluidic device for realizing a switch valve, and relates to the technical field of micro-fluidics.The micro-fluidic device comprises a fixed outer box, a micro-fluidic chip is fixedly installed on the lower surface of the fixed outer box, a door plate is rotatably installed on one side of the fixed outer box, a handle is fixedly installed on one side of the door plate, a visual window is also fixedly installed on one side of the door plate, and a through groove is formed in the other side of the fixed outer box; the rotating rod is rotated, the rotating rod rotates the cam, the cam vertically lowers the containing bottle through the fixed seat and the rack plate when the protruding position of the cam is in contact with the inner wall of the arc surface groove, the upper end of the inserted needle is inserted into the sealing plug and enters the cavity of the containing bottle along with the vertical lowering of the containing bottle, the fluid in the containing bottle enters the inside of the flow pipe through the inserted needle and flows out through the flow pipe, the micro-fluidic chip reads the flow rate and flow of the fluid at this time, and therefore, the micro-fluid control of the fluid is conveniently realized, and the convenience of the micro-fluid control of the fluid is effectively improved.

The utility model relates to the technical field of fluidics, specifically relates to a gas-liquid mixing fluidics, including connecting pipe, fluidic nozzle, conical part and adjusting mechanism, adjusting mechanism includes fixed base, support base, breather pipe, support plate, adjusting screw, cooperation mandrel and mounting device, the water flow passes through fluidic nozzle and enters to the inside of connecting pipe under the electrification operation of external water pump, the cross section area of fluidic nozzle position close to conical part gradually reduces, and then increases the water flow velocity, makes the vacuum area between conical part and the inner wall of connecting pipe, is convenient for making the outside air enter to the inside of connecting pipe, thereby convenient for making the outside ozone or other gas and water flow mix, the cooperation depth of breather pipe is adjusted through the rotation adjusting screw cooperation mandrel, makes the number of breather round hole ventilation work increase or reduce and realizes the adjustment to the air intake, thereby adjusts gas-liquid mixing ratio, and then can solve the existing gas-liquid mixing fluidics and is difficult to adjust gas water mixing ratio, and the problem of inconvenient use.

The utility model discloses a multi-stage coupling type efficient modular jet device which comprises a primary jet nozzle, a secondary jet acceleration ring and a third-stage mixing cavity which are connected in series, and jet modules are communicated through jet interstage transition sections. The butt joint end faces of the primary jet flow nozzle, the secondary jet flow accelerating ring and the third-stage mixing cavity are provided with quick-release flanges, a sealing ring set is embedded in an annular groove, and axial positioning is achieved through an interstage positioning pin. The outlet end of the third-stage mixing cavity is connected with a porous medium mixing layer and a diffusion pressurization cavity, the diffusion pressurization cavity is a conical diffusion section, and an outlet rectification grid is fixed at the outlet end of the diffusion pressurization cavity; the primary jet flow nozzle is provided with an opening quick connection end opening, a lateral liquid supplementing opening is formed in the side wall of the secondary jet flow accelerating ring, and an outlet flow dividing device is installed at the tail end of the outlet rectifying grid. According to the multi-stage modular jet device, efficient fluid mixing and conveying are achieved through the multi-stage modular design, and the maintainability and stability of the device are improved while the overall performance of the jet device is guaranteed.

Certain embodiments disclosed herein provide an ophthalmic surgical system. The system includes a fluidics module and a controller. The fluidics module includes a cartridge bay and one or more indicator lights. The one or more indicator lights correspond to one or more fluidic ports on the fluidics module. The controller includes a memory and a processor, the memory including executable instructions. The processor is in data communication with the memory. The processor is configured to execute the instructions to cause the system to: determine that a cartridge is coupled to the cartridge bay; determine a type of the cartridge; illuminate at least one of the one or more indicator lights based on the determined type of the cartridge; and extinguish the at least one of the one or more indicator lights upon receiving an input indicating that a fluidic conduit is fluidically coupled to a corresponding fluidic port.

The application discloses a method for generating a specific pattern by inducing particle adsorption based on micro-fluidic bubbles, and belongs to the fields of micro-fluidics and fluid mechanics.The method comprises the following steps: obtaining three-dimensional flow field data containing spatial position, corresponding velocity and phase field information; performing numerical simulation on particle motion based on the three-dimensional flow field data, calculating gravity, buoyancy, viscous resistance, van der Waals attraction, electrostatic repulsion, friction, wall support force and capillary force acting on the particle by judging the contact state of the particle with a wall surface and a gas-liquid interface; constructing a particle motion equation under the combined action of the above eight forces, updating the particle position and obtaining a migration track by using a time advancing method according to the motion equation; when the spherical surface of the particle is in contact with the solid wall surface, if the movement speed of the particle in the solid wall surface is consistent with the movement speed of the solid wall surface, it is determined that the particle has completed the transition from free motion to stable deposition, and the position of the particle at this time is recorded as a deposition site; and all the deposition sites are gathered into a specific pattern.