318 results about "Organic glass" patented technology

The invention discloses a grinding and polishing tool applied to curved surface machining and a preparation method of the grinding and polishing tool. The grinding and polishing tool comprises a grinding and polishing layer, a base body layer and a rigid layer. The grinding and polishing layer is a uniform mixture of hydrophilic resin and grinding materials, protrusions are evenly distributed, the center axes of the protrusions are perpendicular to the lower end face of the tool, and the spherical surface where the tops of the protrusions are located and the spherical surface where the bottoms are located are the same in radius and collinear in sphere center. The matrix layer is made of hydrophilic resin the same as that of the grinding and polishing layer; the rigid layer 3 is one of an organic glass plate, a polyvinyl chloride plate and a polycarbonate plate. A convex tool is adopted for concave surface machining, and a concave tool is adopted for convex surface machining. The grinding and polishing tool is integrally formed, bonding is reduced, functional structure integration of the tool is achieved, and the machining precision is improved; the hydrophilic resin has the swelling characteristic when encountering water, full flexibility of the tool is achieved, and the tool can be attached to the surface of a workpiece easily and has the self-finishing function.

The present invention relates to the technical field of CT, and discloses a dual-energy-spectrum material decomposition calibration phantom and method. The dual-energy-spectrum material decomposition calibration phantom comprises an organic glass cylinder having a length of 16 cm, two Teflon cylinders having different diameters are embedded in the organic glass cylinder, and the diameters of the two Teflon cylinders are respectively one third and one fourth of the diameter of the organic glass cylinder. According to the dual-energy-spectrum material decomposition calibration phantom and method, calibration is performed on a projection, without relying on an image reconstruction process, so that energy spectrums and original projection data information can be more fully utilized, so as to obtain a more accurate image and a more accurate material decomposition result.

The utility model relates to the technical field of grassland soil gas collection, in particular to a soil profile gas collection device which comprises a supporting cylinder, four groups of partition plates arranged from top to bottom are fixedly installed in the supporting cylinder, each partition plate is composed of a first plate body and a second plate body, each second plate body is provided with an L-shaped vent hole communicated with the outside, and the opening of each vent hole faces upwards. The supporting cylinder is divided into four cavities through four sets of partition plates, four organic glass tubes extending into the four cavities respectively are fixedly installed on the supporting cylinder, a three-way valve is fixedly installed at the top of each organic glass tube, and a gas suction cylinder used for extracting gas is arranged on each three-way valve. According to the utility model, the four chambers are uniformly arranged in the supporting cylinder, so that gases with different depths can enter the corresponding chambers. And a pressure applying plate is arranged on the supporting cylinder, so that the supporting cylinder can stably move downwards into the soil.

The invention provides a detonation pressure optical testing device for a micro-dose powdery explosive, which comprises a rotating mirror type scanning camera and an explosive detonation unit, and is characterized in that the rotating mirror type scanning camera is used for collecting a shock wave motion trail image when the powdery explosive is detonated; the explosive detonating unit comprises an organic glass column body and a high-pressure exploder, an explosive charging hole with an open top is formed in the organic glass column body in the axial direction, a stress wave adjusting rod is arranged in the explosive charging hole in a penetrating mode, and the bottom face of the stress wave adjusting rod can make contact with powdery explosives charged into the explosive charging hole; a first detonating hole and a second detonating hole are coaxially formed in the organic glass column body in the radial direction, and both the first detonating hole and the second detonating hole communicate with the charging hole; the heating wire penetrating through the first detonating hole, the charging hole and the second detonating hole can make contact with the powdery explosive in the charging hole, and the two ends of the heating wire are connected with the positive electrode and the negative electrode of the high-pressure exploder correspondingly. According to the invention, a traditional detonation mode is not needed, the interference of the detonator and the explosion expanding explosive on the measurement process of the sample with the small explosive quantity is solved, and the test convenience and the test precision are improved.

The present disclosure provides a fine detection device and method for crack initiation and propagation of a rock specimen during loading process. The device comprises an organic glass skeleton, a plurality of sensor support skeletons, a multi-parameter dynamic acquisition system, a servo press bearing platform and a computer, wherein the organic glass skeleton is placed in the middle of the servo press bearing platform, the sensor support skeletons are arranged inside the organic glass skeleton, the rock specimen is arranged inside the sensor support skeleton, the multi-parameter dynamic acquisition system is fixedly arranged on the sensor support skeleton, the multi-parameter dynamic acquisition system is in contact with the rock specimen, and the multi-parameter dynamic acquisition system and the servo press bearing platform are electrically connected to the computer.

The invention discloses an experimental detection device and method for splashing of a valve in still water in an air pressure environment, and relates to the technical field of valve detection, the device comprises an organic glass box, and detection mechanisms are symmetrically arranged in the organic glass box. According to the valve still water splashing experiment detection device in the air pressure environment, the sealing ring wraps the outer side of the butt flange, so that the sealing performance is guaranteed, the communicating joint is connected with the upper hose through the connector and communicated with the communicating vessel through the hose, and then the communicating vessel is connected with the conveying pump; a right-angle pipe is arranged at the bottom of the conveying pump and communicates with the interior of the box body, so that during use, a water source is added into the box body, then the conveying pump works in cooperation with the right-angle pipe to pump out the water source, and then the water source is conveyed into a communicating connector through a communicating vessel and a hose and communicates with the interior of a valve body through the communicating connector; a water source is added into the valve body, pressure testing is carried out, and if cracks or damage exist, water pressure enables the interior of the valve body to be sprayed out.

The invention relates to the technical field of gas permeability testing, in particular to a method and a device for testing hydrogen permeability of a high-pressure flexible composite pipe under tensile load. The device comprises a hydrogen concentration detection sensor, a nut, a thrust bearing, a pull rod, a stress monitoring sensor, a blind flange, a flange, an organic glass tube and a clamping plate, wherein the blind flange can seal gas in the tube; the clamping plate is used for axially positioning the composite pipe; axial prestress can be applied to the composite pipe by screwing the nut, and the stress monitoring sensor can record a stress value; the hydrogen concentration detection sensor can detect the gas concentration in the organic glass tube. Compared with the existing closest technology, the method has the advantages that the influence of the tensile load on the hydrogen permeability of the full-size high-pressure flexible composite pipe is considered, the test result is closer to the actual working condition, and technical support can be provided for selection and research and development of the hydrogen energy conveying high-pressure flexible composite pipe material.

The invention belongs to the technical field of magnetic field sensing, and discloses a silicon-based anisotropic magnetic film non-contact magnetic field sensing device which comprises an organic glass probe, a rotating table, a steering engine, a support, a solar panel, a rear-end waterproof box and a fixed base which are sequentially combined from top to bottom. Magnetic field components at different angles are obtained through the variable attitude angle scanning mechanism, so that the optimal sensing angle is selected, measurement errors caused by installation attitude deviation, structural tolerance and environmental disturbance can be effectively eliminated, the reliability and stability of the system in outdoor long-term operation are remarkably improved, and the reliability and stability of the system in outdoor long-term operation are improved. The magnetic field of the wire is sensed in a non-contact mode, the light-weight probe and the movable fixing support are matched, fixation can be directly carried out below the measured wire, the installation process is simple, convenient and rapid, and the device is very suitable for the rapid arrangement and temporary monitoring requirements of an electric power field.

The invention relates to impact-resistant synergistic organic glass and a manufacturing method thereof.The method comprises the steps that core-layer seed forming, core-layer growing, shell-layer forming, impurity removal and concentration are conducted, nano-sized core-shell colloidal particles are obtained, during core-layer growing, a first functional monomer containing a first functional group is added, and during shell-layer forming, a second functional monomer containing a second functional group is added; adding a second functional monomer containing a second functional group; pre-dispersion liquid containing core-shell colloidal particles, a dispersing agent and an MMA monomer is formed; preparing a liquid base material; the temperature condition is controlled, the liquid matrix material is polymerized to form a solid matrix, at the moment, a transition area between the shell layer and the matrix is a compatible interface formed by polymerization and curing of the MMA permeable layer, chemical bonding is formed between the first functional group and the second functional group, chemical bonding is formed between the second functional group and the third functional group, and the solid matrix is formed. The impact-resistant synergistic organic glass is obtained. The impact resistance of the organic glass can be improved, and meanwhile, the original basic mechanical property and high visible light transmittance are reserved.

The invention relates to the technical field of motor test equipment, in particular to a test device for isolating generator vibration and a use method thereof. In order to solve the problems of insufficient external vibration isolation, structural adaptability, working condition adjustment flexibility, data acquisition precision and the like in the prior art, the invention provides the following technical scheme that the device comprises a base, a supporting platform is mounted above the base, a generator set is mounted at the top of the supporting platform, and a motor is mounted in the lower part of the supporting platform; a transmission shaft for connecting the motor and the generator set is arranged between the motor and the generator set; the supporting platform comprises a lower support in threaded connection with the base, and the lower support is fixedly connected with a plurality of sets of organic glass plates which are oppositely arranged through threads. External vibration interference can be effectively isolated, data accuracy is improved, the device is simple in structure and convenient to mount, adapts to different types of generators, can flexibly adjust working conditions, realizes integration of data acquisition and analysis, is wide in application scene, and improves test efficiency and reliability.

The invention discloses a salt lake rock core permeation sample chamber for testing the permeation coefficient of a salt lake rock core sample, the salt lake rock core permeation sample chamber comprises an upper cover (2), an organic glass barrel (3) and a lower cover (4), a base (8), a latex film (11) and a pressurizing cap (7) are sequentially arranged above the lower cover (4) from bottom to top, and the latex film (11) sleeves the base (8) and the pressurizing cap (7), is tightened by a rubber band and is fastened by a hoop straining ring; and the lower cover (4) is provided with a water inlet and outlet valve interface (13) which is connected with a confining pressure controller and is used for controlling the peripheral annular pressure of the latex film (11), and foot pads (5) for supporting the sample chamber. A salt lake rock core sample is put into the latex film and then put into the sample chamber, a certain annular pressure is given to the sample through the water inlet and outlet valve interface, lateral seepage is prevented by controlling the annular pressure, and the situation that the permeability coefficient test result is unreliable due to the fact that the original structure state of the sample is changed under the action of large external force is prevented.

The utility model provides a low-concentration electroplating wastewater two-stage treatment device driven by a source heat pump, which belongs to the field of electroplating wastewater treatment and can operate at medium and low temperature without special equipment through a tower top, a hot air inlet pipeline, a heat source pump, an electroplating wastewater inlet pipeline, a pressure nozzle and a waste gas outlet pipeline. The requirement for sealing performance is low, consumables are few, the requirement for materials is not high, simplicity and convenience are achieved, and the operation cost is low; the device can be used for directly observing the whole evaporation and separation process of the evaporation and separation tower body part, so that unfavorable conditions occurring in the heat and mass transfer process can be conveniently found in time and adjusted and optimized in time; the device treats electroplating wastewater by using air as a separation carrier, and the separation carrier is convenient to obtain and is basically not limited by the environment; the device adopts the visual polyacrylate material tower body which is high in transparency, low in price and easy to machine, and the internal temperature of the tower body is lower than that of the tower top part, so that the problems of softening and deformation of organic glass caused by high temperature and the like are effectively avoided.

1. Name of the designed product: double-layer coffee cup holder (acacia organic glass). 2. Use of the designed product: for placing coffee cups. 3. Design points of the designed product: in the combination of shape and pattern. 4. Picture or photo best indicating the design points: perspective view.

The utility model discloses a lighting device which comprises an infrared sensor, a top flange, a light-emitting control panel, an organic glass protection tube and an organic glass cap. The infrared sensor is connected to the top of the top flange, the top flange is provided with a threading hole, and the bottom is provided with a wiring terminal; the wiring terminal is connected with an input port of the light-emitting control panel through a flat cable, and a cable connected with the wiring terminal is led out through the threading hole; the light-emitting control panel comprises a single-chip microcomputer and an LED light-emitting tube, and the LED light-emitting tube is connected with an output port of the single-chip microcomputer through an internal circuit. The top end of the organic glass protection tube is connected to the bottom of the top flange; the organic glass cap is connected to the bottom of the organic glass protection tube; and the light-emitting control panel and the wiring terminal are positioned in the organic glass protection tube. The utility model further discloses a box type rare earth extractor. According to the utility model, the state of a solution in the extraction tank can be clearly observed, and the observation definition and contrast are improved.

The present invention discloses an electric power dispatching monitoring device and a method for using the same, and relates to the technical field of electric power monitoring devices. The present invention includes an electric power dispatching monitoring module and a firmly connected and separated composite module. Both ends of the electric power dispatching monitoring module are provided with firmly connected and separated composite modules. The electric power dispatching monitoring module includes a carrying box module, a monitoring main body module, a cover, organic glass, and a grounding pin. The present invention facilitates the connection of the device to the circuit through the coordinated design of the electric power dispatching monitoring module and the firmly connected and separated composite module, thereby forming a dispatch monitoring of the electric power flow between the inflow end and the output end, greatly improving the convenience of monitoring and viewing. Moreover, through the design of the firmly connected and separated composite module, the device facilitates the convenient two-way derivation connection and stable fixation of the circuit that needs to be dispatched and monitored after connection, and facilitates rapid separation when a circuit abnormality occurs, thereby facilitating the auxiliary processing of special dispatching situations.

The present invention relates to the technical field of simulation experimental devices, and specifically to a deep tunnel vertical shaft water drop and sediment movement simulation experimental device and method. The experimental device includes a water storage tank equipped with a water pump, and also includes an eddy current component, which is conductively installed with the water storage tank; the vertical shaft component includes a vertical shaft body with a semi-cylindrical pier and an energy dissipation cone installed at the bottom end thereof, and the eddy current component is arranged at the top end of the vertical shaft body and aligned with the center of the energy dissipation cone; a transparent sedimentation tube, which is conductively installed at the bottom end of the vertical shaft body and conductively connected to a sampling tank at the end thereof; and an organic glass tube, which is conductively installed between the sampling tank and the water storage tank, and between the water storage tank and the eddy current component. The deep tunnel vertical shaft water drop and sediment movement simulation experimental device and method can simulate a deep tunnel environment, can analyze and simulate different deep tunnel environments by controlling experimental conditions, reduce experimental costs and safety risks, and are of great significance to deep tunnel engineering design and risk assessment.

The utility model discloses an organic glass connecting mechanism and an organic glass system.The organic glass connecting mechanism comprises a buckle structure and a connecting piece, the buckle structure is used for being fixed to the edge of organic glass, the buckle structure comprises a connecting part, and the connecting piece is used for sequentially penetrating through the connecting parts of the buckle structures of two pieces of organic glass; and the two pieces of organic glass are connected. According to the application, the buckle structures are fixed at the edge of the organic glass, and then the connecting piece sequentially penetrates through the connecting parts of the buckle structures of the two pieces of organic glass, so that the two pieces of organic glass are tightened and connected, and therefore, through the cooperation of the buckle structures and the connecting piece, the two pieces of organic glass can be tightened and connected; connection of large organic glass with the edge of a complex structure is achieved, the requirement for reliable coating of large connecting tension loads and the complex structure is met, and meanwhile operation convenience and safety are achieved.

The utility model discloses a mould is placed under the mould of simulation ultrasonic real -time guidance of nasal -intestinal tube, including the digestive tract simulation body of simulation esophagus, stomach, duodenum and jejunum, it adopts the flexible material of ultrasonic wave penetration, front surface is not transparent, back surface is transparent, and its inside esophagus is used for filling air, and the part except esophagus is used for filling liquid, the digestive tract simulation body is fixed between two organic glass, front surface is not transparent, back surface is transparent, the organic glass of front surface opens at esophagus place, antrum gastricum place respectively, as the acoustic window of ultrasonic, is used for the inflation sign of esophagus and antrum gastricum nasal -intestinal tube catheter tip cloud sign of ultrasonic observation when placing nasal -intestinal tube respectively, is provided with many resistance positions at stomach and duodenum, for making nasal -intestinal tube catheter tip forward into the obstruction. The utility model can simulate the sign of ultrasonic under different conditions on the mould, effectively simulates the actual entering process of nasal -intestinal tube under the real -time guidance of ultrasonic, and facilitates simulation teaching demonstration.

The method suggests coating the transparent solid with an additional laser radiation absorptive layer of material and then laser texture the coated solid to attain a nanostructured transparent solid with increased transmissivity while the additional coating 5 is removed. This method is applicable but not limited to a substrate transparent solid like glasses of silicate composition, such as fused silica, borosilicates, aluminosilicates, alkali aluminosilicates, float glasses, crown glass, amorphous sapphire etc., crystals, for example crystalline sapphire, laser active medium crystals etc. and polymers, for example polycarbonate, plexiglass etc. It is also applicable to substrates coated with a thin film of 0 above mentioned materials.

The invention relates to a natural gas drag reduction evaluation device under the synergistic effect of a pipe wall interface layer and turbulent flow drag reduction. The device comprises a nitrogen purging system, a natural gas turbulence circulating system, a drag reducer quantitative injection system, a PIV imaging and testing system and a drag reducer filtering and recycling system. The nitrogen purging system is used for cleaning an experimental loop, the natural gas turbulence circulating system is used for simulating turbulence states under different working conditions, and the duplex organic glass transparent test pipe section group can test flow characteristics under different pipe diameters and inner wall conditions; the drag reducer quantitative injection system adopts a plunger pump and an atomization device to ensure that the drag reducer is uniformly dispersed; the PIV imaging and testing system is used for accurately capturing a turbulent flow microstructure. Through macroscopic flow and microscopic turbulence structure observation, the drag reduction performance under the synergistic effect of the inner coating and the drag reducer and the influence of factors such as the pipe diameter, the position, the concentration and the variety of the drag reducer on the drag reduction effect are evaluated, and experimental data and a theoretical basis can be provided for engineering application of the natural gas drag reduction technology.

The invention relates to a novel transition tank for pouring low-viscosity epoxy resin, and belongs to the technical field of production and processing of insulating parts, the novel transition tank comprises a support and a tank body mounted on the support, the tank body is a transparent tank, an injection port is formed in the middle of the top end of the tank body, and a vacuumizing pipe is further arranged at the top of the tank body; a heater, a degassing barrel, degassing rings and a degassing umbrella are respectively arranged in the tank body, the heater is arranged in the middle of the degassing barrel, and a plurality of degassing rings are arranged in the degassing barrel. The tank body is made of organic glass or high borosilicate glass, the U-shaped heating pipe is arranged in the middle of the degassing barrel, and heat is diffused from inside to outside. The heat conductivity coefficient of the tank body made of organic glass or high borosilicate glass is 50 times lower than that of the tank body made of a metal shell in the prior art, the heat preservation effect is greatly improved, and the heat efficiency is improved.

The invention discloses a large-diameter shield tunnel lining segment whole-ring stress monitoring system based on a three-axis tilt angle sensor. The system comprises a total station, a small prism, a sensor pre-installation and removal assembly and a whole-ring segment stress calculation algorithm. The total station is mounted in a pipe piece vault area 20 rings away from a tunneling face and used for monitoring pipe piece floating; the small prism is arranged in the top area of the shield tail ring to be separated through a hot melt glue gun and serves as a base point of rigid deformation of the duct piece; the sensor pre-installation assembly comprises a sensor, an organic glass base and a fisheye screw; the sensor transmits arrangement point position angle data to a cloud end through 4G network signals, and real-time monitoring is carried out on the pipe piece arrangement point position angle; according to the calculation method for the whole-ring duct piece, the duct piece is regarded as an elastic body, the duct piece is equivalent to a continuous beam, the arch crown displacement measured by a small prism is regarded as the rigid body displacement of the duct piece, the elastic displacement of each part of the duct piece is calculated according to the inclination angle value measured by a sensor, and then the whole-ring stress of the duct piece is obtained more accurately; and the flare angle of the adjacent segments can be calculated according to the sensors at the joints of the adjacent segments. According to the invention, under the condition of considering the elastic deformation of the segment, the whole ring stress condition of the large-diameter shield tunnel lining segment can be obtained in real time.

The application discloses a micro-visualization slice for shale bedding flow characteristic analysis and a manufacturing method thereof. The method can comprise the following steps: grinding a shale slice obtained by slicing a shale sample, and grinding the shale slice to a thickness of 30-40 microns; clamping the ground shale slice in the middle by using two pieces of organic glass slices with a thickness of 0.2-0.3 mm, and placing the clamped shale slice in an inlaying machine to perform hot pressing, so that the organic glass slices and the shale slice are pressed into one; drilling a hole in the radial direction of the organic glass slice by using a drill bit with a diameter of 0.7-0.9 mm, so that the hole after drilling is communicated with the shale slice; inserting one end of a quartz micron tube with an inner diameter of 0.5 mm into the hole to fix the quartz micron tube, and connecting the other end of the quartz micron tube with a quartz tube line with an inner diameter of 1.6 mm, so as to manufacture the micro-visualization slice for shale bedding flow characteristic analysis. The micro-visualization slice can lay a foundation for subsequent visualization seepage experiments of different bedding types, pressures and injection media, and clarify different beddings to shale gas reservoir flow patterns and development characteristics.

The utility model relates to the technical field of medical auxiliary instruments, and provides a mirror hanging frame which comprises a large-hole octagonal prism, a mirror hanging frame body and a mirror hanging frame body. One end of the first flat aluminum cross beam is inserted into the large-hole octagonal prism, and a mirror hanging frame made of organic glass is fixed to the other end of the first flat aluminum cross beam; one end of the second flat aluminum cross beam is inserted into the large-hole octagonal prism, and the other end of the second flat aluminum cross beam is fixedly provided with a mirror bracket made of organic glass; one end of the third flat aluminum cross beam is also inserted into the large-hole octagonal prism, and a small-hole octagonal prism is inserted into the other end of the third flat aluminum cross beam. The mirror hanging frame is light in weight, simple in structure, low in manufacturing cost and light and convenient to use, the flat aluminum cross beam and the large-hole octagonal prism are detachable and convenient to disassemble and assemble, and the large-hole octagonal prism can be provided with eight cross beam flat aluminum, so that more hanging requirements can be met, excessive space is not occupied, and the space is reasonably utilized.

The application discloses a preparation method of an electronic device based on a gold nanometer sawtooth grating structure, a device and a chip. A nano-hole-possessing soft film is used to perform imprinting on a photoresist layer coated on a glass substrate, so as to form a nano-square array structure on the glass substrate. Residual layers of the photoresist layer between the nano-square array structure and an organic glass layer coated on the glass substrate are etched, so as to form a to-be-angle thermal evaporation structure on the glass substrate. An angle thermal evaporation technology is used to perform thermal evaporation on the to-be-angle thermal evaporation structure at a specific incident angle, so as to form a chromium / gold composite thin film coating layer on the to-be-angle thermal evaporation structure. The organic glass layer, the photoresist layer and selected connecting lines on the glass substrate are peeled off, so as to obtain the electronic device based on the gold nanometer sawtooth grating structure. The preparation method has low cost and high throughput, can be used to prepare a large-area gold nanometer sawtooth grating structure, and realizes mass production of the electronic device based on the gold nanometer sawtooth grating structure.

The invention provides a method and a device for dehydration consolidation and directional migration of sludge containing heavy metals, belongs to the technical field of electric consolidation and heavy metal migration, and solves the problems of low sludge dehydration efficiency, unknown heavy metal migration mechanism and poor removal effect in the prior art. The method comprises the following steps: filling a reaction device with sludge containing heavy metals; graphite electrode plates are arranged at the two ends, and filter paper and a permeable stone isolation layer are laid between the electrodes and the sludge; and applying 0.5-2.0 V / cm direct-current voltage gradient for 12-72 hours, maintaining the environment temperature of 25 + / -2 DEG C, driving pore water to migrate to a cathode through electroosmotic flow, dehydrating and solidifying, and meanwhile, enabling heavy metal cations to migrate directionally by utilizing an electrophoresis effect. The matching device comprises an organic glass box body, an adjustable graphite electrode and a current detection and temperature control system. The sludge dewatering efficiency is effectively improved, the method has wide application prospects in the fields of river sludge treatment, polluted site remediation and the like, and a new technical approach is provided for solving the problem of heavy metal polluted sludge treatment.

The invention discloses an ocean detection underwater equipment recovery device, and relates to the technical field of detection underwater equipment. The ocean detection underwater equipment recovery device comprises a floating device, the floating device comprises a tail sealing cover, a top sealing cover and an organic glass sealing box, the top of the tail sealing cover is fixedly connected with a mounting bracket, the mounting bracket is fixedly connected with a battery pack and a solar cell panel, the side wall of the mounting bracket is fixedly connected with a mounting plate, and the mounting plate is fixedly connected with the top sealing cover. And the side wall of the mounting plate is fixedly connected with an AIS circuit board, a display screen and a main control board. According to the marine detection underwater equipment recovery device, floating is controlled in a preset countdown mode, and compared with a fixed buoy, the marine detection underwater equipment recovery device stays underwater at ordinary times, and channel operation is not affected; an AIS system can be used for positioning on the water surface, all ships equipped with the AIS system can identify the water surface, and meanwhile, the safety and the fishing operation efficiency are improved; the photovoltaic panel is adopted for charging, the water surface working time is greatly prolonged, and the number of times of uncovering for charging is reduced.

The invention discloses a high-load transparent rare earth complex organic glass scintillator as well as a preparation method and application thereof. The scintillator comprises a polymer matrix and an ionic rare earth complex dispersed in the polymer matrix, the rare earth complex comprises coordination anions and ionic liquid cations, the coordination anions comprise rare earth ions and organic ligands, and the loading capacity of the rare earth complex in the polymer matrix can reach 80-90 wt%. According to the scintillator, an ionic liquid is introduced to construct an ionic supramolecular structure, effective isolation of a luminescence center is realized by utilizing steric hindrance and a charge shielding effect, concentration quenching is inhibited, and compatibility with a matrix is enhanced, so that the material still keeps transparency of 90% or above under an ultrahigh load. The maximum radiation luminous intensity of the scintillator is 23.9 times that of commercial LYSO, the lower detection limit is as low as 56nGy / s, and the scintillator is suitable for the fields of high-energy particle detection, X-ray imaging and the like.

The utility model belongs to the field of aircraft aerodynamics and flight mechanics teaching, and relates to a Bernoulli theorem demonstration device, which comprises a multi-tube pressure gauge, a hose, a Pitot tube, a fastening knob, an organic glass cavity, a contraction block, a ruler and a wind speed generation device, and is characterized in that the multi-tube pressure gauge is connected with the Pitot tube through the hose, and the Pitot tube is fixed on the fastening knob; the contraction block is fixed inside the organic glass cavity, the ruler is fixed on the side wall of the organic glass cavity, and the wind speed generating device is placed at an inlet of the organic glass cavity. By continuously adjusting the position of the Pitot tube in the organic glass cavity, the Bernoulli theorem is clearly and visually displayed to students by using the total pressure and static pressure liquid level height and change conditions displayed by the multi-tube pressure gauge, and meanwhile, a continuity equation can be demonstrated in an auxiliary manner by means of simple calculation, the theory and practice are combined, the teaching effect is improved, and the teaching efficiency is improved. And the device has the characteristics of convenience in observation, low cost, simplicity in operation, good portability and the like, and can well meet teaching requirements.

The utility model discloses a dust cover for a conveying channel of a beverage production line, which belongs to the technical field of beverage production and comprises a conveying frame, a conveying mechanism is arranged on the inner side of the conveying frame, a limiting mechanism is arranged on the side of the conveying frame, and two groups of slots are arranged on the top surface of the conveying frame. According to the utility model, the two L-shaped transparent organic glass covers are rotatably connected between the two L-shaped brackets at the side parts of the two U-shaped brackets, the bottom ends of the two U-shaped brackets are inserted into the slots, and the U-shaped brackets are mounted on the conveying frame through the matching of the insertion holes, the screw holes and the bolts; the L-shaped transparent organic glass cover is installed on the side portion of the top end of the conveying frame, the top of the conveying frame is protected through the L-shaped transparent organic glass cover, dust is prevented from falling on bottle bodies conveyed on the conveying mechanism, meanwhile, mosquitoes can be prevented from falling on the bottle bodies, and attractiveness of the device is guaranteed.