28 results about "Exposure chamber" patented technology

The invention provides an integrated animal contamination experiment device for combined exposure of environmental adverse factors, which comprises a combined exposure cabin, and a preset space is arranged in the combined exposure cabin; the animal noninvasive binding cabins are partially arranged in the preset space of the combined exposure cabin; the animal noninvasive binding cabin is communicated with the preset space; the harmful gas generation exposure assembly is communicated with the combined exposure cabin; the high-temperature environment generation exposure assembly is communicated with the combined exposure cabin, and the high-temperature environment generation exposure assembly is partially arranged in the combined exposure cabin; and the noise generation exposure assembly is arranged in the combined exposure cabin. By means of the device, the problems that an existing exposure contamination device cannot carry out a multi-factor integrated test and cannot adapt to animal body growth are solved.

The application belongs to the technical field of toxicity test, and discloses a high-repetitive and high-precision exposure and poisoning animal experiment system and method. The exposure and poisoning animal experiment system comprises an animal exposure and poisoning experiment unit. The aerosol gas inlet sleeve, the poisoning exposure cabin, the isolation mouse cage, the horn-shaped upper guide cylinder and the cylindrical lower guide cylinder jointly form two mutually isolated poisoning exposure channels. Each channel independently inputs poisoning exposure mixed gas into a poisoning exposure chamber. The animal poisoning exposure experiment in the oral-nasal exposure mode or the whole-body exposure mode can be completed by using one set of experiment system. Through the synchronous improvement of the experiment system structure and the experiment method, the oral-nasal or whole-body exposure mode can be flexibly switched, and the micro-sample high-concentration exposure experiment of multiple poisoning exposure chambers can be simultaneously performed. The accuracy and repeatability of the animal poisoning exposure experiment are significantly improved. The application breaks through the limitations of the existing experiment system and method, and has a wide application prospect.

An apparatus for exposing a flat card to sanitizing radiant energy, has an enclosure that has an exposure chamber having a source of sanitizing radiation. A first insert slot and a second insert slot, disposed along an input surface of the enclosure are each configured to accept insertion of the flat card. A transport apparatus defines a first transport path to convey the flat card from the first insert slot, and through the exposure chamber, to emerge from a first output that opens on a first side surface of the enclosure and a second transport path to convey the flat card from the second insert slot, and through the exposure chamber, to emerge from a second output that opens on a second side surface of the enclosure that is opposite the first side surface.

The utility model belongs to the field of automatic lifting devices, particularly relates to an automatic lifting device, and aims to solve the problem of poor dismounting and mounting effects caused by the fact that the conventional automatic lifting device cannot fix an outer cavity of an exposure chamber. The number of the supporting columns is four, and the four supporting columns are fixedly connected with the operation table; the servo lifting device is arranged on the operation table; the clamping device is arranged on the servo lifting device; the exposure device is arranged on the clamping device; the buckling device is arranged on the operation table; the worm and gear transmission mechanism is arranged on the buckling device; the tightening device is arranged on the worm and gear transmission mechanism; according to the utility model, the outer cavity of the exposure chamber can be fixed, so that the aim of improving the dismounting and mounting effects is fulfilled.

The invention discloses a multi-mode animal exposure device and method based on aerosol contamination, and relates to the technical field of biomedical experimental equipment. The device comprises an aerosol generating device, a breath exposure cabin and an exhaled air collecting device, the aerosol generating device comprises a gas source, a dispersed phase generating device and a mixing chamber which are connected in sequence; the breathing exposure cabin comprises an experimental animal fixing device; the breathing decoupling tube comprises a three-way tube internally provided with a one-way valve, the air inlet end is communicated with the mixing chamber, the breathing end is communicated with the respiratory tract of the experimental animal, and the air outlet end is communicated with an exhaled air collecting device. A dispersed phase output by a dispersed phase generating device and gas output by a gas source in the device can form aerosol with uniform properties in a mixing chamber, exhaled gas and inspired gas in a respiration decoupling pipe respectively flow through different gas passages, decoupling of inspiration and exhaling is realized, mutual interference between the two processes can be reduced, and the stability of the device is improved. And the result of the breathing exposure experiment is more accurate.

Provided herein are novel in vitro biomimetic aerosol exposure systems designed to enhance the understanding of respiratory health impacts from aerosol inhalant devices, such as e-cigarettes. The systems and methods described herein improve biomimicry at multiple levels, including, system, macroscopic, and cellular levels, to provide more accurate and realistic exposure conditions. As described, these systems and methods address many limitations of existing smoking machines by offering better correlation between in vitro and in vivo conditions, improved particle deposition and dosimetry, and more realistic interactions between aerosols and biological samples. As various aspects, the biomimetic aerosol exposure system includes an emissions delivery system, an oral cavity module, a bifurcated exposure chamber, and a flow control subsystem.

An in vitro trans-dermal diffusion apparatus for gas exposure, including: a gas generator, an exposure chamber, an exhaust treating device, a sampling arm, a diffusion chamber, a liquid replenishment tank, and a sample bottle rack. The in vitro trans-dermal diffusion apparatus for gas exposure supports multiple diffusion chambers conducting gas exposure experiments simultaneously. The sampling port and replenishing port of the diffusion chamber are separated, enabling the rapid replenishment of fluids through a replenishment tank after sampling, which reduces the time the skin membrane is separated from the receptor fluid. The sampling arm of the in vitro trans-dermal diffusion apparatus for gas exposure, combined with a telescoping rod, allows the sampling needle to be inserted into the sampling port for sampling and can also be extended into a sample bottle to release the sample, minimizing the contact between the sample liquid and the air.

The invention discloses PCB (printed circuit board) exposure equipment, which relates to the technical field of PCB production and comprises a base, an ultraviolet exposure chamber, a feeding area and a rack. According to the PCB exposure equipment disclosed by the invention, pre-exhausting and preliminary fixing are carried out on the photosensitive film through the lower pressing plate which moves downwards intermittently, then most air is exhausted through the soft rubber roller which rotates eccentrically, and residual bubbles are removed through the lower pressing strip which moves downwards intermittently, so that most air and residual air in the photosensitive film are removed in sequence; therefore, the exhaust quality is improved, and high-standard lamination of the photosensitive film is realized; the photosensitive film on the top surface of the circuit board main body is subjected to crossed film scraping, and the crossed film scraping ensures that each area of the top surface of the circuit board main body is subjected to pressure from different directions, so that all-directional and dead-corner-free air removal is realized, and the lamination of the photosensitive film is smoother and more uniform.

Allergen exposure chambers (AECs) can be used to produce controlled exposure to allergenic and non-allergenic airborne particles but at present cannot be used for double-blind, placebo-controlled, randomized clinical trials currently required by regulatory authorities. Accordingly, inventive naturalistic exposure chambers (NECs) designed to mimic the environment(s) within which a typical user / individual is exposed are outlined. Further, reproducible controlled allergen dispersal is achieved via robotic allergen aerosolization systems (AAS) which provide automated movement of the allergen source within the AEC as well as structure for acquiring and / or aerosolizing—distributing the allergen. Robotic AAS can be used to acquire only, distribute only, or acquire and distribute. Robotic AAS may also provide aerosolization of two or more allergens in defined manner.

The present invention discloses a substrate chuck for a semiconductor device, which includes a substrate chuck base and a substrate table; a knob positioning assembly is provided on the substrate chuck base, and the knob positioning assembly is used to assist in the installation and positioning of the substrate table onto the substrate chuck base and can precisely rotate and adjust the circumferential position of the substrate table on the substrate chuck base; a substrate positioning member is provided on the substrate table, and the substrate positioning member is used to clamp substrates of various specifications and sizes onto the substrate table; the tension posts on the substrate chuck base are connected to the connection device of the exposure chamber to realize the clamping of the substrate chuck base in the exposure chamber. The present invention has the advantages of compact structure, simple operation, high compatibility, and high positioning accuracy, solves the problems in the prior art that a single substrate cannot be quickly and accurately positioned after entering the exposure chamber, resulting in low substrate exposure efficiency and unstable quality, and realizes the rapid and accurate positioning of the substrate and high-quality engraving.

This invention relates to a rapid sample changing device. A first vacuum valve is provided between an exposure chamber and a first sample changing chamber, and a second vacuum valve is provided between the exposure chamber and a second sample changing chamber. A sample stage is installed in the exposure chamber, and a movable sample holder is fixed to an electromagnetic hanging rod by an electromagnetic adsorption device. A first conveying rod is configured to move between the first sample changing chamber and the exposure chamber under vacuum to transfer the sample holder from a first position in the first sample changing chamber to a second position in the exposure chamber. A second conveying rod is configured to move between the exposure chamber and the second sample changing chamber under vacuum to transfer the sample holder from the second position in the exposure chamber to a third position in the second sample changing chamber. This invention also relates to a rapid sample changing method within the rapid sample changing device. According to the rapid sample changing device and method of this invention, the vacuum state of the exposure chamber is not disrupted during sample replacement, achieving rapid sample replacement and improving experimental efficiency.

The invention provides an establishment method and application of a pertussis epidemic strain mouse mouth-nose aerosol challenge model, and the establishment method of the pertussis epidemic strain mouse mouth-nose aerosol challenge model comprises the following steps: S1, culturing a required pertussis epidemic strain, and diluting to obtain a bacterial suspension; s2, adding the bacterial suspension into an aerial fog attack system; s3, the mouse is put into a mouth and nose exposure cabin in an aerial fog attack system, aerial fog attack is conducted on the mouse, and aerial fog used for attack is bacterial suspension. According to the invention, the aerosol concentration, exposure time and environmental parameters can be accurately controlled, a natural infection approach is simulated, and the reliability and repeatability of the model are improved.

The utility model relates to the technical field of fuel gas detection equipment, in particular to fuel gas leakage inspection equipment, which comprises an inspection vehicle, a support frame and a detector main body, an exposure chamber is arranged in the support frame, a protection assembly is arranged at the exposure chamber, and the protection assembly comprises a cylinder fixedly arranged on the bottom surface of a top plate body of the support frame, an upper protection box is arranged at the tail end of a telescopic shaft of the air cylinder, a lower protection box is detachably connected to the bottom face of the upper protection box, an arc-shaped hole is formed in the arc-shaped side face of the lower protection box, a servo motor is fixedly installed on the side face of the lower protection box, and a vertical rod is detachably connected to an output shaft of the servo motor. The vertical rod penetrates through the arc-shaped hole and is in sliding connection with the arc-shaped hole, the detector body is detachably installed at the bottom end of the vertical rod, and a heat dissipation protection cylinder is fixedly installed on the side face of the lower protection box. According to the utility model, the detector main body is utilized for detection, and the effect of protecting the transmission part is achieved.

This invention discloses a fully automatic roll-to-roll metal touch exposure device, belonging to the field of metal exposure technology. It includes a feeding mechanism for feeding metal raw materials, a working mechanism for exposing the metal roll on the feeding mechanism, and a winding mechanism for rewinding the exposed metal roll. The invention integrates a dust removal mechanism within the exposure chamber, consisting of an exhaust fan, a dust removal hood, an inner fixing frame, and a dust-adhesive roller. Before the raw material enters the exposure machine, the dust-adhesive roller physically brushes the metal surface, while the brushed dust is discharged in real time through the dust removal duct and the exhaust fan. This efficiently removes electrostatically adsorbed particles remaining after the protective film is peeled off, preventing tiny impurities from forming defects during exposure and improving the integrity of the exposed pattern and production yield.

The utility model discloses a ray exposure room flat car track movable connecting device which comprises a bottom plate, second double tracks are symmetrically and fixedly connected to the upper surface of the bottom plate, the second double tracks are vertically and symmetrically arranged, a sliding track structure is arranged on the inner side wall of the bottom plate, a through hole plate is fixedly connected to the side wall of a shielding door plate, and a through hole is formed in the through hole plate. The lower surface of the through hole plate is attached to the upper surface of the sliding rail structure, and the through hole plate is fixedly connected with the sliding rail structure through bolts. When the shielding door is completely opened, the first double rails on the surface of the sliding rail structure are just connected to the rail disconnection position of the second double rails, when the shielding door is closed, the sliding rail structure is pushed open through power of the door, so that the sliding rail structure is contained in the through groove inner cavity of the bottom plate, the second double rails are disconnected, and the door is smoothly closed; the rails do not need to be disassembled manually, combination of the rails is completed when the shielding door switch is closed, safe operation of the flat car and the shielding door is guaranteed, and potential safety hazards are eliminated.

The utility model relates to the technical field of POS machines, in particular to a portable POS machine convenient to maintain, which comprises a POS machine main body, an inner side exposure cavity with the top communicated with the outside is arranged in the POS machine main body, end screw bumps are fixedly mounted on the cavity walls of two corner parts of the right side of the inner side exposure cavity, and the end screw bumps are fixedly mounted on the end screw bumps. The left side of the inner side exposure chamber is provided with a front side exposure chamber communicated with the outside, the bottom wall of the front side exposure chamber is provided with a left inclined clamping groove and a right inclined clamping groove which are mutually symmetrical, the top of the POS machine body is provided with a top cover, the left end part of the top cover is fixedly provided with a front side cover plate, and the front side cover plate covers the front side exposure chamber. A left clamping protruding block and a right clamping protruding block which are mutually symmetrical are fixedly installed on the bottom face of the front side cover plate, the clamping protruding blocks are matched with the inclined clamping grooves in a clamping mode, and a right end plate body of the top cover is fixedly connected with the end screw protruding block. The LED lamp is convenient to disassemble and maintain, has a heat dissipation function, and is convenient to use.

The utility model relates to a high temperature and PM2.5 combined exposure cabin, and relates to the technical field of exposure experiment devices, the high temperature and PM2.5 combined exposure cabin comprises a cabin body, a plurality of cages are uniformly arranged in the cabin body along the height direction at intervals, and the plurality of cages are distributed in a step shape; an air inlet located above the cage at the second top layer is formed in the top of the cabin body, and the top of the cabin body inclines downwards from the air inlet to one side of the cage at the topmost layer; an air outlet located below the cage at the second bottom layer is formed in the bottom of the cabin body, and the bottom of the cabin body inclines upwards from the air outlet to one side of the cage at the bottommost layer; heating pastes are arranged on the two side walls of the cabin body, and temperature probes are arranged at the top, the middle and the bottom in the cabin body. The utility model provides the exposure device capable of performing the high-temperature and PM2.5 combined exposure experiment, and the requirements of the high-temperature and PM2.5 combined exposure experiment are met.

A substrate processing apparatus includes a table in an exposure chamber that is configured to perform an exposure process on a semiconductor substrate, a guiding device including a first horizontal driving body slidably movable in a first horizontal direction and a guide rail on the first horizontal driving body and having a trench extending in a second horizontal direction, a positioning device connected to the guiding device, the positioning device including a slider, a second horizontal driving body and a substrate stage, the slider configured to slidably move in the second horizontal direction along the trench, the second horizontal driving body connected or fixed to the slider, the substrate stage on the second horizontal driving body and configured to support the semiconductor substrate, and a blocking member between the guide rail and the substrate stage to block an inflow of foreign substances onto the substrate stage.

Method to change the molecular composition of a target medium under a condition of modified physical vacuum structure, includes introducing into an exposure chamber the target medium having a Raman spectrum with a predetermined target spectral resonance; rotating a source hydrocarbon medium in a drum adjacent to the exposure chamber, to produce a vacuum and magnetic influence; propagating the vacuum and magnetic influence to the target medium in the exposure chamber; applying a mechanical vibration to the target medium to vibrate the target medium on a molecular scale, to create colloidal molecular vibrations; transferring energy from the colloidal molecular vibrations to an electron system of atoms in molecules of the target medium until at least a portion of the molecules of the target medium cracks into shorter molecular hydrocarbon products; and withdrawing the shorter hydrocarbon molecular products from the exposure chamber.

A system and method for cleaning and / or post-exposure of a body manufactured by using an additive manufacturing method from a substance curable by radiation, the system including a cleaning tank for cleaning the body and / or an exposure chamber for post-exposure of the body, the system further including a transport device having a drive for moving a build platform relative to the cleaning tank and / or to the exposure chamber. The transport device includes a force sensor, the force sensor captures a force acting on the build platform and provides a force signal, and is connected to a processing unit for controlling the drive and / or for outputting process parameters based on the force signal.

The invention belongs to the technical field of toxicity testing, and discloses a high-repeatability and high-precision exposure contamination animal experiment system and method, and the exposure contamination animal experiment system comprises an animal exposure contamination experiment unit, an aerosol inlet sleeve, a contamination exposure cabin, an isolation mouse cage, a trumpet-shaped upper guide cylinder and a cylindrical lower guide cylinder of the unit jointly form two contamination exposure channels which are isolated from each other, and contamination exposure mixed gas is independently input into contamination exposure small chambers; animal contamination exposure experiments in a mouth and nose exposure mode or a whole body exposure mode can be completed through one experiment system. Through synchronous improvement of an experimental system structure and an experimental method, mouth-nose or whole-body exposure modes can be flexibly switched, a trace sample high-concentration exposure experiment of a plurality of contamination exposure chambers can be simultaneously carried out, the precision experiment and repeatability of an animal contamination exposure experiment are remarkably improved, and the experimental efficiency is improved. Various limitations of an existing experiment system and method are broken through, and the system and method have wide application prospects.

This utility model relates to a light-shielding structure for an exposure machine, including an exposure machine body. An exposure chamber is fixedly connected to the front end of the exposure machine body. A square through-plate is disposed above the exposure chamber. Two extension plates are slidably connected to the inner wall of the square through-plate. A pressing plate is fixedly connected to one end of each extension plate, and a rubber pad is fixedly connected to one side of the pressing plate. Two fixing plates are fixedly connected inside the square through-plate. Two limiting grooves are formed on both the upper and lower surfaces of the square through-plate. Limiting sliders are slidably connected to the inner walls of the limiting grooves, and the limiting sliders are fixedly connected to the corresponding extension plates. A moving mechanism is disposed inside the square through-plate. This light-shielding structure for an exposure machine can block ultraviolet light inside the exposure chamber, preventing ultraviolet light from shining onto the human body surface during use and thus avoiding harm to health. It is quite practical.

This disclosure relates to a horizontal whole body chamber (HWBC) for conducting whole-body exposure analyses therein. The HWBC is configured to provide a uniform distribution of a test material within an air flow to achieve reliable whole body exposure. The HWBC achieves uniform mixing over short distance lengths to provide whole body exposure chambers that are practical for smaller animals and lessen the consumption of laboratory space.

The utility model discloses circuit board exposure equipment which comprises an equipment body, a sliding mechanism, a bearing piece and a turnover mechanism, the equipment body is provided with an exposure cavity, the exposure cavity is arranged along a first direction opening, and an exposure mechanism is arranged in the exposure cavity; the sliding mechanism is connected with the equipment body, and the output end of the sliding mechanism does linear motion along a first direction and enters and exits the exposure cavity; the bearing part is provided with a mounting groove for placing a circuit board, and the bearing part is rotationally connected with the output end of the sliding mechanism; and the output end of the turnover mechanism drives the bearing piece to rotate outside the exposure cavity. According to the utility model, the problems of low processing efficiency and high working intensity of workers of the existing exposure equipment can be solved.

The invention discloses an exposure box with adjustable and controllable environmental elements, which relates to the technical field of animal experiments and comprises a box body, an aerosol regulation and ventilation system, a light environment regulation system, a sound regulation system, a control system and a monitoring assembly. An inner cavity of the box body comprises a functional area and an animal experiment area. And the aerosol regulating and ventilating system is communicated with the box body and is used for regulating the components, concentration and air circulation of aerosol in the box body. The light environment adjusting system is fixed to the functional area and used for adjusting and controlling the illumination intensity and the color temperature in the box body. The sound regulation and control system is fixed to the functional area and used for regulating and controlling environment sound in the box body. The control system is electrically connected with the aerosol regulation and ventilation system, the light environment regulation system and the sound regulation and control system and used for integrally controlling operation of all the systems. The monitoring assembly is fixed to the box animal experiment area and used for monitoring animal behaviors in real time. According to the exposure box, single or coordinated regulation and control of various environmental elements can be realized, and the experiment stability and the operation efficiency are improved.

A lithography exposure system and a method for the same. The method for the lithography exposure system includes forming a photocatalyst material on an inner wall of an exposure chamber of an exposure apparatus. An integrated circuit wafer is transported into the exposure chamber. A photoresist liquid is applied on the integrated circuit wafer. An exposure process is performed on the photoresist liquid. A reaction of a vapor of the photoresist liquid is catalyzed by the photocatalyst material.

The utility model relates to the technical field of superfine particulate matter exposure and monitoring, and particularly discloses a superfine particulate matter exposure and monitoring platform which comprises a glove sealing box, an operation opening is formed in the lower portion of the front end face of the glove sealing box, and a door body is movably connected to the upper portion of the front end face of the glove sealing box. Through closed-loop airflow control, a modularized exposure chamber and an integrated monitoring system, the problem that the research on exposure of ultrafine particles is not easy to carry out due to interference of coarse particles in the environment is solved, and the problems that a traditional device is low in ultrafine particle separation and collection efficiency, lagged in monitoring, uncontrollable in experimental environment and the like are solved. According to the device, a large number of fine particles can be rapidly collected, other pollutants in the environment are not mixed, whole-body inhalation and exposure of small animals can be achieved, the exposure level of the fine particles is monitored in real time, the precision and efficiency of ultrafine particle research are remarkably improved, meanwhile, environment safety and operation convenience are considered, and high scientific research and practical value is achieved.

The utility model relates to the technical field of advertising lamp boxes, in particular to a splicable double-color luminous character advertising lamp box which comprises a plurality of rectangular box bodies, a vertically-arranged guide column is fixedly installed on one side of the top of each rectangular box body, a stud is fixedly installed at the top end of each guide column, and the rectangular box bodies are fixedly installed on the other side of each rectangular box body. A guide rod is fixedly installed on the box body on the other side of the top of the rectangular box body, a guide hole is formed in a plate body at the end of the guide rod, the guide hole sleeves the guide column, the stud is in threaded connection with a nut, an exposed cavity is formed in the rectangular box body, the front end and the rear end of the exposed cavity are both communicated with the outside, and a lamp bead substrate is arranged in the exposed cavity; a covering plate is arranged at the opening position of one end of the exposed cavity, and a plurality of first light emitting holes and second light emitting holes which are communicated with the outside are formed in the covering plate. According to the utility model, the splicing assembly operation is convenient, and the maintenance is also convenient.