13results about How to "Achieve physical isolation" patented technology

The utility model discloses a kind of hydrogen energy power generation systems of quick heat dissipation, including outer frame, be set on base and be provided with hydrogen energy power generation module inside;Several open and close doors, hinged on outer frame and be provided with electric louvers on open and close door;Several heat dissipation fans, fixed in outer frame top and into positive pressure air to outer frame inside;The base is equipped with cavity, and the circuit of the hydrogen energy power generation module is laid in base cavity.This hydrogen energy power generation system can realize power generation function by setting power generation module inside outer frame, simultaneously, by setting heat dissipation fan and electric louvers, the ventilation inside can be guaranteed, it is convenient to quick heat dissipation, and by laying circuit in the cavity inside base, the temperature inside outer frame can be reduced, effectively guarantee the normal operation of hydrogen energy power generation system.

The utility model relates to a kind of MPCVD sealing structure, belong to MPCVD equipment technical field, including the protection structure for the protection of MPCVD body, the MPCVD body includes reaction cavity, waveguide cavity, connecting rod being set in reaction cavity inside and penetrating waveguide cavity inside, the upper portion of waveguide cavity is provided with the number of two connecting discs, two The adjusting spring is fixed between two connecting discs;The protection structure includes the base being set between two connecting discs, the base number is two, two The connecting block is detachably installed in the inside of two bases, two The telescopic protective sleeve that is fixed with the adjusting spring protection between two connecting blocks is protected. The MPCVD sealing structure, by two bases and detachable connecting block fixed, then by telescopic protective sleeve completely wrapping adjusting spring, prevent corrosive gas, particulate matter directly contact spring surface, realize the physical isolation of adjusting spring.

The utility model relates to a block type lifting workbench which comprises an installation part, a plurality of table top parts, a plurality of lifting parts and a plurality of control parts. The platform has the advantages that the modular split design is adopted, accurate partition leveling is achieved through a plurality of independently-controlled platform surface components, all stations can be independently lifted and do not interfere with one another, and the platform is particularly suitable for a multi-instrument collaborative operation scene; secondly, a worm gear and worm transmission system and a cross telescopic rod linkage mechanism are innovatively adopted, the rotating speed of a motor is accurately adjusted through a micro control unit (MCU), a four-connecting-rod structure composed of stainless steel transmission rods is matched, the lifting process meets the positioning precision, and meanwhile it is ensured that displacement drifting does not exist in the load state through the self-locking characteristic of a worm gear; in addition, in the structural design, the double-layer stainless steel installation base piece forms a stable supporting frame through the supporting foot pieces distributed in a matrix mode, the design of array type receding openings in the panel piece is matched, the overall rigidity is guaranteed, and physical isolation of the lifting units is achieved.

This invention relates to the field of precision inspection and discloses a defect detection method based on machine vision. The method includes: an illumination device projecting a modulated light field containing multiple modulation periods, wherein the spatial light intensity distribution is shifted at a preset speed between adjacent periods; a photoelectric detection array acquiring a time-varying light intensity sequence reflected from the material surface, the sequence containing the reflected light intensity values ​​of multiple sampling points within the corresponding period; extracting the transient change gradient of the reflected light intensity within adjacent periods for sampling points at the same physical coordinate position on the corresponding material surface; determining an intrinsic light intensity change threshold based on the shift speed and sampling frequency; and identifying sampling points whose transient change gradient exceeds the threshold as physical breakage defects. This invention utilizes the constraint law of the geometric continuity of the material surface on the optical response to achieve the physical separation of texture interference signals and defect abrupt change signals, thereby solving the problem of misjudgment in defect measurement under complex topological surfaces.

The present application belongs to the technical field of switching power supply, and particularly relates to a switching power supply which is ejected when overheating, and more particularly to a suspension type switching power supply and a use method thereof, wherein the suspension type switching power supply comprises a suspension plugboard, and a power supply body with a base in which a slot is formed for the insertion of the suspension plugboard; wherein the suspension plugboard is provided with plug-in blocks on both sides in a sliding manner; the suspension plugboard is further provided with elastic trigger members; and the elastic trigger members are provided with heat shrink members at the positions corresponding to the plug-in blocks. When the temperature of the power supply body rises to exceed the limit working temperature of the power supply body, the heat shrink members automatically shrink, triggering the plug-in blocks to shrink, so that the elastic trigger members are ejected, the power supply body is ejected from the suspension position, physical isolation is achieved, and the power supply body is prevented from continuing to heat up and igniting surrounding equipment after overheating. Meanwhile, a pure mechanical structure is adopted, the aging or malfunction problems of electronic sensors are avoided, and the failure rate and maintenance frequency are reduced.

This utility model provides a corrosion-resistant axial flow fan, belonging to the field of fan technology. It solves the technical problems of existing fans being prone to corrosion. This corrosion-resistant axial flow fan includes a fan casing, a motor, fan blades, and a support frame. A fixed shaft is fixedly connected to the support frame. The motor includes a stator assembly and a rotor assembly, which are integrally formed with the fixed shaft. The fixed shaft has an upper cover and a lower cover, forming a receiving cavity between them. The rotor assembly and stator assembly are located within the receiving cavity, and the rotor assembly is fixedly mounted by the upper and lower covers. The fixed shaft includes a first fixing part and a second fixing part, with the stator assembly located between the first and second fixing parts. A first bearing is installed between the first fixing part and the upper cover, and a second bearing is installed between the second fixing part and the lower cover. The fan blades and the lower cover are integrally formed. This utility model solves the problem of motors being easily corroded when exposed to airflow in the duct, extending the service life of the motor and the entire machine, and significantly reducing maintenance costs and the risk of downtime due to corrosion.

The application relates to the technical field of first-aid kits, in particular to a first-aid kit for a critical care medicine department, which comprises a shell, a cover plate installed on the shell, a placing table for placing ampoules arranged in the shell, a pull-out plate for placing medical instruments arranged below the placing table and a compartment arranged in the shell, at least one partition plate is arranged in the compartment, at least one sliding rail is arranged on the side wall of the compartment, and a sliding groove matched with the sliding rail is arranged on each partition plate. Therefore, the technical problems of low taking and placing efficiency, single storage chamber and insufficient expansion and adaptability of the first-aid kit can be solved by the first-aid kit for the critical care medicine department.

The invention provides a board card environment test system, a board card environment test method and a test workstation. The board card environment test system comprises an incubator used for simulating a tested temperature and humidity environment; the jig card is arranged in the incubator, and the jig card is provided with a power interface, a data transmission interface and a board card slot for inserting a test sample; the power supply is arranged outside the incubator, and the power supply is connected with the power interface on the jig clamp and used for providing electric energy for the jig clamp; and the control system is arranged outside the incubator, and the control system is used for running a test script, is connected with the data transmission interface on the jig card, and performs data transmission with the test sample inserted into the board card slot through the data transmission interface. According to the board card environment test system, the board card environment test method and the test workstation provided by the invention, the stability, controllability and efficiency of the test can be improved, and the test cost is reduced.

This invention relates to a method for secure unidirectional data transmission and physical isolation, comprising an external data receiving module, a first microprocessor, a specific wavelength invisible light emitting module, an optical filtering module, a specific wavelength invisible light receiving module, a second microprocessor, and a final data user terminal. In this invention, due to the unidirectional nature of optical data, the specific wavelength invisible light emitting module can only emit light; the specific wavelength invisible light receiving module can only sense light; and the final data can only be transmitted from the specific wavelength invisible light emitting module to the specific wavelength invisible light receiving module, and cannot be transmitted in the opposite direction. This ensures that data can only enter the internal PC / server from the external environment, and cannot be transmitted from the internal PC / server to the external environment. This achieves unidirectional data transmission from the external environment to the internal environment while avoiding any cable or wireless electromagnetic communication connections between the external and internal environments, thus achieving physical isolation.

The present application belongs to the field of precision machinery measurement technology, and particularly relates to an automatic multi-parameter comprehensive measurement system and method for a precision spindle. The method comprises supporting the spindle on an adjustable span support assembly, locking the axial position of the movable abutting surface through a pressure signal; controlling the probe feed using a distance measuring sensor; automatically switching between non-contact and contact measurement according to the axial distance between the impeller and the positioning end surface; detecting the rotation of the driving spindle after the protective cover is closed, simultaneously pressing the driving wheel and locking its horizontal degree of freedom; synchronously collecting displacement data and calculating the radial runout, axial runout, end surface runout and end surface flatness. The system comprises a support assembly, an axial positioning assembly, a measurement assembly, a distance measuring sensor, a driving assembly, a protective cover, a data acquisition unit and a control unit. The present application realizes automatic measurement of multiple parameters, has high efficiency and good safety, and can adapt to narrow gap impeller spindles.

This invention relates to the field of engine testing system technology and discloses an integrated command system for an engine test bench, comprising: a time synchronization unit and a data video processing unit. The time synchronization unit is networked with the process measurement system and camera system of the engine test bench via a network switch. The first network port of the data video processing unit is connected to the process measurement system, and the second network port of the data video processing unit is connected to the camera system via the network switch. By setting up the time synchronization unit and the data video processing unit, the time synchronization unit provides a unified absolute time reference for the process measurement system and the camera system. The data video processing unit adopts a dual-port independent connection design, receiving measurement parameters and video streams in real time, and performing precise matching according to timestamps to automatically generate a fused image integrating parameters and video. This eliminates the need for test personnel to switch between multiple screens for observation, significantly improving test monitoring efficiency and operational convenience.