1940 results about "Air bubble" patented technology

The invention relates to the technical field of hemispherical harmonic oscillator assembly, in particular to a welding method and device for an assembled hemispherical harmonic oscillator, and the device comprises a vibration welding platform and a clamping assembly located above the vibration welding platform; the vibration welding platform is used for bearing the sensitive base and providing a thermal field and a vibration field needed by welding, and the clamping assembly is used for clamping the center shaft and sending the center shaft into a center hole of the base. A heating unit and a composite vibration ultrasonic transducer are arranged in the platform, and the platform is configured to apply high-frequency vibration formed by superposition of vertical longitudinal waves and horizontal torsional waves to the base. The high-frequency vibration thixotropic effect is used for reducing the viscosity of the molten solder, the ultrasonic cavitation effect is used for forcibly discharging bubbles at the bottom of the blind hole, and the sound radiation pressure generated by the vibration standing wave field is used for driving the center shaft to achieve friction-free self-centering in the hole. According to the device, the problems of air bolt pseudo soldering and rigid assembly clamping stagnation in the traditional process are solved, and the assembly coaxiality and the connection strength of the harmonic oscillator are remarkably improved.

The invention relates to the technical field of image recognition, and discloses a glass fiber board production quality detection method and system, and the method comprises the steps: collecting a continuous infrared thermal image sequence through an infrared thermal imaging device; constructing a temperature difference image set; identifying a primitive region with an abnormal diffusion characteristic; further performing fitting enhancement and significance detection on the abnormal primitive region; and performing defect classification and quality judgment based on the regional feature vector. Compared with the prior art, the technical problems that in the prior art, high-precision parting judgment cannot be achieved under the conditions that the surface texture of a glass fiber board is complex, hot-pressing disturbance exists, particularly, hot diffusion behaviors of dry filaments, degumming and cavitation bubble defects are similar, and the false detection rate of a conventional algorithm is high are solved. Due to the fact that a multi-channel thermal diffusion consistency analysis mechanism and parallel discrimination logic based on feature vectors are introduced, infrared primitive anomaly enhancement detection and defect classification recognition under the complex background are achieved, and the accuracy of glass fiber board production quality detection is improved.

The invention relates to the technical field of water-stable layer materials, in particular to a microcapsule self-repairing ardealite water-stable layer material and a preparation method and application thereof.The preparation method comprises the following steps that S1, ardealite, slag powder and a modified coagulant are mixed in a mixer, and a preliminary modified mixture is obtained; s2, adding double microcapsules into the primary modified mixture to obtain a secondary modified mixture; s3, adding deionized water into the modified mixture obtained in the step S2, and stirring and mixing to obtain a modified wet mixture; and S4, injecting the modified wet mixture into a mold, vibrating to remove bubbles, standing at room temperature, and demolding and curing for 25-28 days to obtain the microcapsule self-repairing phosphogypsum water-stable layer material. Through the synergistic effect of the double microcapsules and the modified coagulant, the integrated function of rapid coagulation, self-repairing and toughness enhancement is achieved, it is guaranteed that a strength framework is rapidly formed in a high-humidity environment, meanwhile, immediate repairing can be provided for micro-damage, and the toughness and crack resistance of the material are macroscopically improved.

A foam molding method includes: moving a screw backward to take air into a heating barrel through a nozzle part in a state in which a shut-off nozzle is opened, the shut-off nozzle that opens or closes the nozzle part for injecting the molten resin and is disposed on a heating barrel; closing the shut-off nozzle and moving the screw forward, to diffuse the air taken into the heating barrel, in the molten resin in the heating barrel; feeding the molten resin forward while dispersing the air as the air bubbles in the molten resin by moving the screw backward while rotating it in a state in which the shut-off nozzle is closed; and opening the shut-off nozzle, to inject the molten resin containing the dispersed air bubbles into the cavity.

The invention relates to the technical field of bean product processing, and discloses a defoaming device for bean product production and processing, the device comprises a base, a base plate and a discharging barrel, one side of the top of the base plate is fixedly provided with a device main body, one side of the device main body is fixedly provided with a processing cylinder, and the defoaming device further comprises an eliminating assembly arranged in the processing cylinder, vertical plate parts are symmetrically and fixedly connected to the top of the base, a feeding assembly is arranged between the two vertical plate parts, the eliminating assembly comprises a longitudinal plate fixedly installed on the upper portion of the interior of the processing barrel, a driving motor is fixedly installed at the top of the longitudinal plate, and a rotating shaft is fixedly connected to the output end of the driving motor; and a central fan blade and a side gear are fixedly connected to the outer side of the rotating shaft, so that the problems that only a small amount of large bubbles are punctured by the tip of the device, and most of the bubbles are still likely to remain on the liquid level position, so that the bubble eliminating effect is reduced, and the subsequent bean product processing quality and taste are influenced are solved.

The utility model discloses a desulfurization liquid foam tank negative pressure defoaming device which comprises a defoaming box and a vortex fan, one side of the bottom of the defoaming box is connected with a desulfurization regeneration tower through a liquid inlet pipe, and the other side of the bottom of the defoaming box is connected with a foam tank through a liquid discharge pipe. An air inlet of the vortex fan is connected with an air outlet hole in the top of the defoaming box through an air inlet pipe, an air outlet of the vortex fan is connected with a negative pressure tail gas pipeline through an air outlet pipe, and valves are arranged on the liquid discharge pipe, the air inlet pipe and the liquid inlet pipe. The defoaming box disclosed by the utility model is arranged between the desulfurization regeneration tower and the foam tank, bubbles at the upper part of foam liquid entering the defoaming box are broken by utilizing negative pressure and centrifugal force generated by the vortex fan, and the defoamed foam liquid enters the foam tank, so that the influence on the operation precision caused by a large amount of accumulated foams in the foam tank can be avoided, and the field operation environment is effectively improved.

A hot tub wall jet nozzle includes a nozzle body and a nozzle core seat. Water flows from the water inlet into the water flow channel in the nozzle body. Air enters through the air inlet of the nozzle body and reaches the first air accommodating cavity, then flows from the first air accommodating cavity to the second air accommodating cavity, and the air from the second air accommodating cavity is then mixed with the water in the nozzle core seat at the water outlet under the Venturi effect, and the mixed water and air flow is finally discharged through the water outlet. This structural arrangement allows for reduced dilution and loss of air bubbles during water flow transmission. The Venturi effect produced in this nozzle is capable of generating a greater volume of air ejection, thus enhancing the strength and effectiveness of the massage.

To provide a coating system that can improve the property of discharging air bubbles and foreign matter from inside a coating head unit.SOLUTION: A painting robot 10 comprises: a painting head unit 50 comprising a painting head 53; a robot arm R1, which moves the painting head unit 50 to a desired position; a head control unit 90, which controls operation of the painting head 53; and a control unit comprising a robot arm control unit 70, which controls operation of the robot arm R1. The robot arm control unit 70 is configured to perform: head movement control to move the painting head unit 50 to shift a posture of the painting head unit 50 from an ejection position of ejecting droplets, so as to move air bubbles B1 present in the painting head 53; and posture return control to return the posture of the painting head unit 50 to the ejection position. The head control unit 90 is configured to perform droplet ejection control to eject droplets from a nozzle 54 during or immediately after the posture return control.SELECTED DRAWING: Figure 2

The invention relates to an integrated active exhaust volume control device for CRRT, which belongs to the technical field of medical instruments and comprises a main mounting frame, and an on-line self-exhaust air bubble catcher, a continuous operation peristaltic pump, a mechanical volume follow-up compensation device, a module core controller and a piezoelectric ceramic micro compensator are integrated and fixed on the main mounting frame. The online self-discharging air bubble catcher actively removes bubbles in liquid, the peristaltic pump is continuously operated to achieve non-pulse continuous conveying of displacement liquid, the mechanical volume follow-up compensation device accurately regulates and controls waste liquid discharging, the module core controller receives signals in real time and coordinates actions of all components, and the piezoelectric ceramic micro compensator achieves fine adjustment of net dehydration. The module can eliminate bubble interference from the source, guarantee the continuity of CRRT treatment, improve the capacity management precision, simplify clinical operation, relieve the burden of medical staff and guarantee the hemodynamic stability of patients, and is suitable for CRRT treatment of critical patients.

The invention relates to the field of image processing, in particular to an oil cup defect detection method and system based on deep learning. The method comprises the following steps: acquiring continuous multi-frame oil cup images by using an industrial camera, preprocessing the continuous multi-frame oil cup images, and inputting the preprocessed oil cup images into a neural network model so as to obtain oil cup defect types; the defect types of the oil cup comprise bubbles, cracks, dirty points, scratches and normality; the preprocessing comprises the following steps of: performing distortion removal on an acquired oil cup image by using calibration parameters of an industrial camera, identifying a cup body of the oil cup, cutting the oil cup image, and only reserving a cup body area so as to obtain a first oil cup image; and carrying out multi-frame alignment on the first oil cup image corresponding to each frame of oil cup image, and carrying out synthesis processing on the aligned images so as to obtain a synthesized image. By adopting the method, the accuracy and the detection efficiency of the detection result of the electronic cigarette liquid cup can be effectively improved.

The utility model provides a laminating device for membrane electrode packaging and a fuel cell production system, and belongs to the technical field of fuel cell manufacturing. The laminating device for membrane electrode packaging comprises a laminating assembly, a frame unwinding assembly and a driving assembly, the laminating assembly comprises a steel roller and a rubber roller which are oppositely distributed, and a gap for a membrane material to pass through is formed between the steel roller and the rubber roller; the frame unwinding assembly is located on the upstream of the steel roller and used for conveying the frame to the gap through the steel roller to be attached to the base material. The driving assembly is in driving connection with the laminating assembly, so that the steel roller and the rubber roller can be close to each other or far away from each other, and the laminating device for membrane electrode packaging can effectively solve the problems that the flatness is poor and bubbles exist after the frame and the membrane electrode are laminated.

The utility model belongs to the technical field of electroplating equipment, and provides an electroplating liquid impurity settling pond with an overflow groove, which comprises a settling pond body, an electroplating tank and the overflow groove are arranged on the settling pond body, the electroplating tank and the overflow groove are separated by a partition wall, the electroplating tank is filled with electroplating liquid, and the electroplating liquid in the electroplating tank overflows into the overflow groove through the upper end of the partition wall; the electroplating liquid circulating assembly at least comprises a water pump and an electroplating liquid discharge pipe connected with the water pump, and the electroplating liquid discharge pipe is used for pumping the electroplating liquid in the overflow tank into the electroplating tank; a plurality of baffling filter plates used for blocking and eliminating bubbles flowing into the overflow groove are detachably connected into the overflow groove, and the baffling filter plates are obliquely arranged. And the baffling filter plate can slow down the flow speed of the electroplating liquid and reduce bubbles. And the bubble wall on the bubbles rubs with the surface of the filter screen and is limited by meshes, so that the stability of the bubbles is destroyed and the bubbles are eliminated. The influence on the quality of the electroplated workpiece due to excessive contamination of bubbles on the workpiece is avoided.

The invention discloses a secondary structure constructional column concrete pouring device, and relates to the technical field of constructional column pouring, the secondary structure constructional column concrete pouring device comprises a movable base, the top end of the movable base is provided with a concrete storage tank, one end of the top of the movable base is provided with a vibration compacting mechanism, and the vibration compacting mechanism comprises a rack; according to the device, a formwork of a constructional column is intermittently knocked from the outer side, vibration force is transmitted to concrete poured in the formwork, and the concrete is vibrated, so that the concrete is compactly combined, bubbles in the concrete are eliminated, and the construction quality of the constructional column is improved. And the vibrating operation is carried out on the outer side of the template, so that the operation is more convenient, the vibrating operation is transferred to the outer side, is not limited by the pouring operation space of the constructional column, and is not in direct contact with the concrete, and the situation that part of concrete is adhered or drips after the vibrating is finished, and time is consumed for cleaning is prevented.

This utility model relates to the field of film coating technology, specifically providing a film coating device. It aims to solve the problems of low yield or high production cost of existing film coating machines. The film coating device of this utility model includes a pressure roller assembly and a film application assembly. The pressure roller assembly includes a first pressure roller, through which the film can be wrapped. The film application assembly includes a first air knife located on the first side of the first pressure roller. The product to be packaged moves from the second side to the first side of the first pressure roller, the first pressure roller and the first air knife bring the film close to the product, and the first air knife adheres the film to the surface of the product. The blowing action of the air knife allows the film to adhere tightly to the surface of the product, and also allows for smooth film application even in uneven areas. The blowing action applies sufficient pressure to each area, preventing air bubbles. During the blowing process, the film gradually adheres to the product, preventing wrinkles. Furthermore, it improves the yield of high-quality products, reduces the production of defective products, and lowers production costs.

The utility model relates to a dripping pump capable of discharging gas foam, which belongs to the technical field of dripping pumps and comprises a pump body, a worm wheel blade is rotatably connected in the pump body, a bubble piercing component is arranged at the bottom end of the worm wheel blade and comprises a bubble piercing needle and a rotating shaft, and the rotating shaft is fixedly connected to the bottom end of the worm wheel blade. The bubble absorption device has the beneficial effects that the existence of bubbles is judged by detecting the light intensity change caused by the bubbles in the liquid, then information is transmitted to the controller, and the controller controls the foam absorption assembly to start, so that the foam on the liquid can be absorbed; according to the liquid metering device, the rotating shaft can be driven to rotate through rotation of the worm wheel blades, the multiple bubble stabbing needles can be driven to rotate, bubble stabbing treatment can be conducted on the bubbles in the liquid through the bubble stabbing needles, and generation of the bubbles in the conveying process is reduced.

The invention relates to the technical field of Teflon cloth and discloses cloth dipping equipment for processing Teflon high-temperature cloth, which mainly comprises a dipping box movable shaft I, a movable shaft II, a cloth guide roller, Teflon cloth and the like, movable grooves are formed in the front side wall and the rear side wall of an inner cavity of the dipping box, movable plates are slidably connected in the movable grooves, and the Teflon cloth is arranged in the movable grooves. A clamping groove is formed in the bottom face of the movable plate, and a sliding block is slidably clamped in the clamping groove. When the Teflon cloth is subjected to dipping processing, a movable shaft I and a movable shaft II are driven to rotate through movement of the Teflon cloth, a transmission belt drives a magnet to move, a connecting frame is made to move through adsorption of the magnet to a magnetic block I and a magnetic block II, and the Teflon cloth can be supported through movement of a movable roller, so that the Teflon cloth is subjected to dipping processing; and meanwhile, the movable roller can apply pressure to the Teflon cloth, so that bubbles in gaps of the Teflon cloth are extruded out, the dipping solution can quickly enter the gaps of the Teflon cloth, and the dipping effect is improved.

The application discloses high-performance light soil adopting fine coral sand and a preparation method thereof. The light soil comprises the following components in parts by weight: 100-400 parts of fine coral sand, 10-50 parts of cement, 20-100 parts of seawater and 0-5 parts of additive agent. The fine coral sand is micron-level powder obtained by crushing and grinding of coral sand, has a particle size distribution of 10-300 microns and a specific surface area of 400-600 m2 / kg. The cement content is calculated according to 10%-20% of the mass of the fine coral sand. The additive agent comprises a water reducing agent and a stabilizer. The preparation method comprises fine grinding of the coral sand, preparation and pretreatment of raw materials, dry material premixing and activation, air bubble group preparation, mixing and stirring, and pouring and curing. The application realizes synergistic enhancement of hydration reaction and micro-filling, effectively improves the mechanical properties and durability of the light soil, promotes the transformation of island reef engineering construction to green environmental protection and resource utilization, realizes resource utilization of the coral sand and provides a new way for reducing engineering cost.

The invention relates to an underground substation compressed air foam fire extinguishing system and fire extinguishing method, and the underground substation compressed air foam fire extinguishing system is characterized in that the underground substation compressed air foam fire extinguishing system comprises a fire monitoring unit, a fire extinguishing control system, a compressed air foam generating unit, a compressed air foam releasing unit and a fire extinguishing standby input unit, a fire early warning signal is monitored and sent to the fire extinguishing control system, the fire extinguishing control system processes the received fire early warning signal and then outputs a control signal to the compressed air foam generating unit, and the compressed air foam releasing unit sprays compressed air foam to extinguish fire. An interface of the fire extinguishing standby input unit is arranged outside the underground transformer substation, and fire extinguishing and cooling are carried out on the interior of the transformer chamber by utilizing the fire extinguishing foam release unit through external fire fighting equipment. The system is matched with an underground transformer substation for use, can provide high-performance compressed air foam for fire extinguishing, and is quick in response and high and reliable in fire extinguishing efficiency.

This bioreactor is provided with: a fixed cylindrical surface centered on an axis line extending in the vertical direction; a rotary cylindrical surface which extends around the axis line, partitions and forms a pool, the pool serving as a culturing zone, between the rotary cylindrical surface and the fixed cylindrical surface that face each other in the radial direction of the axis line, and is rotatable around the axis line; a drive part which rotationally drives the rotary cylindrical surface around the axis line; a bottom plate part which partitions the pool from below and forms a bottom surface extending uniformly in the circumferential direction; and an air diffusion part which supplies, from the bottom surface upward, air bubbles formed below the bottom surface.

The invention relates to preparation of fermented milk, in particular to probiotic fermented milk and a preparation process thereof, and the process comprises the following steps: step 1, connecting the fermented probiotic fermented milk to a canning pipe through a pipeline; 2, the canning container is horizontally placed on a transfer belt, and a canning pipe is horizontally inserted into the canning container; thirdly, the conveying belt drives the canning container to move, and the two limiting rods limit and straighten the canning container, so that the canning container is changed from the horizontal state to the vertical state; fourthly, the canning pipe moves along with the movement of the canning container, and canning is completed; the filling process of the probiotic fermented milk can be stably completed, and bubbles are reduced.

This invention discloses an energy-saving pole centrifugal device, belonging to the field of pole processing technology. It includes a support frame, with a centrifugal mechanism at the top of the support frame. The centrifugal mechanism includes a centrifugal cylinder rotatably mounted at the top of the support frame. A third motor is fixedly mounted at the top of the support frame, and a gear is fixedly mounted on the output shaft of the third motor. A limit assembly is provided on the outside of the centrifugal cylinder, and a gear ring is fixedly mounted on the outside of the limit assembly, with the gear meshing with the gear ring. A flow guiding mechanism is provided near the top of the centrifugal cylinder on the support frame. This invention, through the synergistic effect of sliding spiral flow guiding ribs on the inner wall of the centrifugal cylinder and a spiral stirring plate on the outside of the hollow column, can both prevent the concrete aggregate from being sheared and damaged, and fully agitate the concrete, promptly expel internal air bubbles, break the stratification interface of sand, cement slurry, and water during centrifugation, reduce defects such as inner wall laitance, honeycomb, and holes, and significantly improve the pole forming quality and structural stability.

This application discloses a contact-type chip soldering process, relating to the field of chip soldering technology. The process includes the following steps: printing solder paste dots at the contacts within the soldering area of ​​a circuit board; heating the solder paste dots to melt them; cooling the molten solder paste dots on the circuit board to form solder dots at the contacts; printing a solder paste layer at the contacts within the solder paste layer; attaching a chip to the soldering area of ​​the circuit board, such that the chip's contacts are in contact with the solder paste layer; heating the solder paste layer and solder dots to melt them; cooling the soldering area of ​​the circuit board to solidify the molten solder paste layer and solder dots, forming solder joints, and soldering the chip onto the circuit board. This application effectively reduces air bubbles generated within the solder joints and improves the quality of the solder joints.

A method of manufacturing an article at least partially made of cellulose fibers comprises inserting a cellulose pulp comprising cellulose fibers and water into a mixing cavity; applying a high shear mixing action to the cellulose pulp using a high-shear mixer, such that a foam blend comprising cellulose fibers, water and air bubbles is created; inserting the foam blend into a mold cavity; and molding the article by heating the foam blend contained within the mold cavity.

The utility model belongs to the technical field of seawater desalination engineering, and particularly discloses a novel energy dissipation drain tank which comprises a drain chamber, a water inlet pipeline, a middle weir and a drain pipeline, the middle weir divides the drainage chamber into a water inlet section and a water outlet section, and two ends of the middle weir are provided with vacuum breaking side walls; the water inlet section can be selectively provided with a flow distribution column according to the water flow characteristic of inlet water; the water outlet section comprises an L-shaped baffle plate, a flow guide sill and a final-stage flow guide plate; the baffle plate is arranged at the downstream of the middle weir, and the bottom of the baffle plate is supported by a plurality of columns; and the flow guide sill is arranged at the downstream of the baffle plate. The energy dissipation drain tank has the advantages that the energy dissipation drain tank effectively consumes and disperses the energy of water flow by optimizing the structural design, and effectively solves the problems of larger water flow impact, inconvenience in pollutant cleaning and high cleaning cost of the drain tank by utilizing air bubbles carried by air in the flowing process, thereby ensuring the safe and stable operation of the drain tank.

This invention relates to the field of cell detection equipment technology, specifically to a detection device for bladder cancer metabolomics biomarkers. The device includes an ELISA reader, a moving stage, and well plates housed within it. It also includes a defoamer mounted on the outer wall of the ELISA reader. The defoamer comprises a fixing part, a pair of transmission parts, and a striking part and an air blowing part disposed within the fixing part. This bladder cancer metabolomics biomarker detection device, through a mechanical linkage design between the moving stage and the defoamer, uses a gear-driven toothed plate to move a dial-driven bending plate up and down, causing a striking rod to strike the well plate. Combined with synchronous airflow from the air blowing part, a protrusion pushes a piston plate within a second groove, directing airflow from the nozzle. This achieves automated removal of air bubbles from the wells before ELISA reader detection. The dual defoaming effect of striking vibration and airflow impact eliminates optical interference, ensuring the accuracy of the detection values ​​and simplifying the detection process.

The invention relates to the technical field of processing pretreatment, and particularly discloses a disposable PVC glove production raw material premixing and screening device which comprises a bottom plate, a shell is fixedly connected to the top of the bottom plate, a pre-screening device is fixedly connected to the top of the inner wall of the shell, and a PVC raw material mixing device is fixedly connected to the part, located on one side of the shell, of the top of the bottom plate. The pre-screening device can guarantee the size of PVC raw materials through repeated processing, the clean state of a filter screen can be effectively guaranteed at any time, the problem that the filter screen is blocked in the processing process is avoided, the PVC raw material mixing device can remove bubbles generated in the mixing process through different internal and external air pressure intensities, and the mixing efficiency is improved. Meanwhile, sufficient mixing can be guaranteed through sufficient stirring. According to the raw material premixing and screening device for production of the disposable PVC gloves, the purposes that the filter screen is clean, the size of raw materials can be ensured through repeated processing, and stirring is more sufficient are achieved.

The present application relates to a kind of forming die and method of large size curved rigid aerogel material.The forming die of large size curved rigid aerogel material includes: male die;Assembled female die, which is fixedly connected with male die, and the assembled female die and male die form forming cavity between them.The present application adopts multiple vacuumizing and pressurizing auxiliary impregnation mode in x, z two dimensions, to ensure that fiber preform is fully impregnated, by adjusting the size of pressurization and impregnation speed, solve the surface wrinkle of the formed aerogel material, by heating vibrator auxiliary removal of the air bubble generated in mould, greatly improve the cooperation precision of aerogel material and other components.

The utility model discloses a fluid heating device, a hydraulic module and heating and ventilation equipment, and the fluid heating device comprises a cavity shell assembly, a heating body, an exhaust valve and a flow guide structure; a heating cavity is formed in the cavity shell assembly, a liquid inlet, a liquid outlet and an exhaust port are formed in the cavity shell assembly at intervals, and the liquid inlet, the liquid outlet and the exhaust port all communicate with the heating cavity; the heating body is connected with the cavity shell assembly and used for heating liquid flowing through the heating cavity. The exhaust valve is connected with the cavity shell assembly and is arranged at the exhaust port; the flow guide structure is arranged in the heating cavity and used for disturbing liquid flowing from the liquid inlet to the liquid outlet so that at least part of bubbles carried in the liquid can be separated out and discharged through the exhaust valve. According to the technical scheme, the separation efficiency of the gas contained in the fluid heated in the fluid heating device can be improved.

The invention belongs to the technical field of forklift hydraulic diagnosis optimization, and provides a fault self-diagnosis and optimization method for a forklift hydraulic system, which is used for monitoring the air pressure of an oil suction pipeline in the forklift hydraulic system, judging whether the oil suction pipeline leaks air or not, directly determining whether a fault occurs at the oil suction pipeline or not, and improving the working efficiency of the forklift hydraulic system. The content of bubbles in oil can be reduced, the pressure and flow transmission efficiency of a hydraulic system can be improved, when it is judged that an oil suction pipeline leaks air, under the scene that the forklift steers at a small angle continuously between narrow goods shelves, the steering lagging duration and the bubble compression duration of each time of small-angle steering are obtained respectively, and the steering lagging duration and the bubble compression duration of each time of small-angle steering are obtained. The correlation degree between the steering lag time and the oil bubble compression time is evaluated, the influence mechanism of air leakage on a steering system is known more deeply, different types of faults can be distinguished, the main reason of steering lag caused by oil bubble compression can be quickly positioned, and the method and the device can be used for adjusting parameters such as the sending opportunity and the frequency of a steering instruction in the later period. And data support is provided.

The application discloses a kind of quick liquid filling device and liquid filling method for static level system, and relates to a kind of static level liquid filling device.It can be filled with freeze-proof liquid to entire static level observation system efficiently and quickly without generating air bubble.The static level system includes liquid storage liquid tank with liquid tank upper sealing cover on top, PU liquid inlet pipe connected with the outlet of the bottom of liquid storage liquid tank and several static level sensors in series in PU liquid inlet pipe;freeze-proof liquid tank provides freeze-proof liquid for static level system;The quick liquid filling device includes vacuum pump, speed regulation circuit board and lithium battery connected with each other, the speed regulation circuit board is powered by lithium battery for vacuum pump, and the speed of the vacuum pump is controlled by the speed regulation circuit board.The application has the advantages of self-power supply, high liquid filling efficiency, low labor intensity, controllable and adjustable pressure during liquid filling process, and can perform system air tightness pre-checking.