2929results about How to "Precise temperature control" patented technology

An integrated deposition system is described that is capable of vaporizing low vapor pressure liquid precursors and conveying the vapor to a processing region to fabricate advanced integrated circuits. The integrated deposition system includes a heated exhaust system, a remote plasma generator, a processing chamber, a liquid delivery system, and a computer control module that together create a commercially viable and production worthy system for depositing high capacity dielectric materials from low vapor pressure precursors.

The invention provides an intelligent controller used for a direct current (DC) frequency-conversion air conditioner compressor and a technical proposal of the control method thereof; the hardware proposal comprises a rectifier filter circuit and a power module which are electrically connected sequentially; the rectifier filter circuit (220) is also electrically connected with a single DSP controller used as a core processing unit by a switch power supply (240); the single DSP controller is also respectively and electrically connected with the power module, a communication isolation circuit which is used for communicating with the indoor machine of the air conditioner, a fan driving circuit (280), and a temperature sampling circuit (270); the control method comprises the steps as follows:the control software is embedded in the DSP controller; by a control type of dual close-ring FOC no-sensor magnetic field vector, the current ring at the internal ring realizes the decoupling controlto the driving current of the permanent magnetic synchronous motor of a compressor and indirectly controls the output torque of the motor; the speed ring at the external ring is used for controlling the working frequency of the compressor, thus not only meeting the stable requirement during fixed frequency but also meeting the dynamic response during the frequency conversion; and the control software comprises a primitive recursive function and a main interrupt function.

An automated temperature control system for a barbecue grill or other structure comprises an automated damper assembly coupled to a vent of said grill, which damper assembly opens and closes selectively to adjust the flow passage area of the grill's vent. The system further comprises an operating area temperature probe for communicating the temperature of the operating area of the grill to the automated damper assembly, such that the automated damper assembly may maintain a user-specified target operating temperature by way of affecting combustion rates within the grill. A remote control may also be provided to allow the user to input a desired temperature for the system to obtain and / or to change temperature information for the grill or other structure.

A substrate heating device comprises a ceramic base plate having a heating surface on which a substrate is placed, resistance heating elements buried in the ceramic base plate for respective zones into which the heating surface is divided, terminals connected to the resistance heating elements respectively, and lead wires connected to the terminals respectively and wired on an outer surface of the ceramic base plate other than the heating surface.

A slow cooker comprises a case; a control circuit component and an inner pot for receiving food are disposed inside the case; the inner pot is arranged inside the case in a pick-and-place manner; a temperature detection component for temperature detection is arranged on the sidewall of the inner pot, and a mount seat connected to the case is arranged at the bottom of the inner pot; a liftable heating apparatus is arranged on the mount seat; the heating apparatus comprises a heating component and a lifting mechanism which can drive the heating component upwards and downwards. A temperature detection component arranged in the slow cooker is capable of detecting the temperature in the inner pot precisely; a lifting mechanism arranged in the slow cooker is capable of adjusting the distance from the inner pot to preheat the inner pot, improving cooking efficiency.

Scanning localized evaporation and deposition of an evaporant on a substrate utilizes a mask assembly comprised of a series of mask elements with openings thereon and spaced apart in a stack. The openings are aligned so as to direct the evaporant therethrough onto the substrate. The mask elements are heated and the stack may include a movable shutter element to block openings in adjacent mask elements. The evaporant streams are usually vertical but some may be oblique to the substrate, and they may be of different materials.

A method of operating an internal combustion engine coupled in a hybrid powertrain, the method comprising of extracting waste energy from a component of an electrical power system of the hybrid powertrain, and adjusting intake air temperature during homogeneous charge compression ignition operation of the engine by using said extracted waste energy.

The invention relates to the field of test of mechanical properties of materials and in particular relates to a thermo-mechanical-environmental coupling effect testing device and application from room temperature to ultrahigh temperature. The device comprises an electronic universal testing machine, a loading control system, a power supply control system, an induction heater, a strain measurement system, a sample clamp, a temperature measuring system, a pressure control system, a display and analysis system and a vacuum system, wherein a vacuum cavity in the electronic universal testing machine is in a fully water-cooled design, and various functional windows, such as a sensor connector of the clamp and the electronic universal testing machine, an infrared or thermocouple temperature measuring opening of the temperature measuring system, a pressure control opening of the pressure control system, an induction power supply introduction opening of the power supply control system, an extensometer introduction opening of the strain measurement system and a connector of the vacuum system and the vacuum cavity, are reserved in different parts of the vacuum cavity. The device disclosed by the invention can quantitatively research the thermo-mechanical-environmental coupling effect and has the advantages of diversified tested mechanical property parameters, high sample heating and cooling speed and the like.

In a laser-diode-pumped laser apparatus, a solid-state laser crystal doped with at least one rare-earth element including at least Pr3+ is pumped with a laser diode, and emits laser light. In the first aspect, the laser diode has an active layer made of one of an InGaN, InGaNAs, and GaNAs materials, and an optical wavelength conversion element converts the solid-state laser light into ultraviolet laser light by wavelength conversion. In the second aspect, the solid-state laser crystal is codoped with Pr3+ and at least one of Er3+, Ho3+, Dy3+, Eu3+, Sm3+, Pm3+, and Nd3+. In the third aspect, instead of the solid-state laser crystal, an optical fiber codoped with Pr3+ and at least one of Er3+, Ho3+, Dy3+, Eu3+, Sm3+, Pm3+, and Nd3+ is pumped with a GaN-based compound laser diode. In the fourth aspect, an optical fiber codoped with Pr3+ and at least one of Er3+, Ho3+, Dy3+, Eu3+, Sm3, Pm3, and Nd3+ amplifies incident light having a wavelength which is identical with a wavelength of fluorescence generated by pumping of the optical fiber with a GaN-based compound laser diode.

The invention discloses a close isothermal forging method of GH4169 alloy tray-shaped forging in the air, the technological process is that: making GH4169 finegrain roughcast adopting method of upsetting, punching and rolling after heating GH4169 alloy original rod material to 995-1005 DEG C; respectively heating the finegrain roughcast to 995-1005 DEG C and forging die to 950-965 DEG C; diefilling and positioning the finegrain roughcast; while heating finegrain roughcast and forging die to keep the heating warm humidity; forging die and forging press the finegrain roughcast forming under the 55MN to 65MN forging pressure and 0.01s-1 to 0.05s-1 strain rate; obtaining the tray-shaped forging; water-cool processing the tray-shaped forging. Adopting forging method of the invention can realize forming of the GH4169 alloy material tray-shaped forging difficult to deform and obtain the GH4169 alloy tray-shaped forging with weensy crystal grain, high intensity and complicated shape.

A compact medical device for tissue welding is provided. The hand-held plasma heads are configured for deep cuts and long cuts. A bio-compatible liquid capable of solidifying in response to application of plasma, such as an albumin solution, is applied to the wound. Plasma created from a gas such as helium is then applied to said bio-compatible liquid to solidify it and seal the wound. An additional polymerizing gas may also be applied. A feedback mechanism may maintain the temperature of said plasma. A wiper fort removal of excess liquid may also be provided.

A refrigerated transport system includes a prioritizing algorithm to limit the maximum amount of refrigerant flow available to at least one limited cooling compartment by holding a delta T (difference between the supply air temperature and return air temperature) instead of a setpoint temperature in the at least one limited cooling compartment when the available cooling capacity is insufficient to hold a substantially constant temperature in all compartments. A method for creating multiple refrigerated compartment spaces having precision temperature control includes the steps of: prioritizing the compartments by identifying at least one priority compartment to be held at a setpoint temperature; and limiting refrigerant flow to all but the priority compartment when there is insufficient cooling capacity to maintain all compartments at their respective setpoint temperatures.

The invention discloses a converter smelting endpoint molten steel carbon and temperature control system and a method thereof, and belongs to the technical field of converter steelmaking automation control. The converter smelting endpoint molten steel carbon and temperature control system comprises hardware equipment and a software processing module, and is characterized in that: the hardware equipment comprises converter sublance measuring equipment and converter exhaust gas analysis equipment; the software processing module comprises a converter production process data acquisition module, a converter smelting endpoint carbon calculation module, a converter smelting endpoint temperature calculation module, and an information display module; the software processing module is operated on a computer; and the hardware equipment and the software module are connected with a converter production process database through an Ethernet to realize data interaction. The control system and the method thereof have the advantages of accurately controlling the converter smelting endpoint molten steel carbon content and the molten steel temperature, along with stable operation, cost conservation, and wide application range.

The invention discloses a zero-carbon-emission hydrogen production system by methanol water reforming and application and a hydrogen production method thereof. The hydrogen production system comprises a methanol water storage vessel, a delivery pump, a first heat exchanger, a reformer and a carbon dioxide recovery device, wherein the reformer is provided with a reforming chamber, an electromagnetic heater and a hydrogen purification device; the electromagnetic heater provides heat energy for the reforming chamber; the reforming chamber is used for hydrogen production reaction of methanol and water by reforming to obtain carbon dioxide and hydrogen; carbon dioxide and hydrogen are mixed with water vapor to form high-temperature mixed gas, and the high-temperature mixed gas is delivered into the hydrogen purification device; after purification and separation, hydrogen is delivered out, at the same time carbon dioxide and unreacted water vapor mixed gas are also delivered out, and then carbon dioxide and unreacted water vapor mixed gas are delivered into the carbon dioxide recovery device after passing through the first heat exchanger; the carbon dioxide recovery device is a replaceable modular carbon dioxide recovery device and used for recovering carbon dioxide and part of the water vapor. The zero-carbon-emission hydrogen production system provided by the invention can recover carbon dioxide, has no impact on the environment and causes no harm to the hydrogen production system self and is beneficial for popularization and application in the field of new energy resources such as fuel cell cars.

The invention discloses an air supply control method for equipment in a machine room, comprising the following steps: an air supply controller receives induction values of temperature sensors at an air inlet and an air outlet in a machine cabinet and receives induction value of running current in the machine cabinet; the induction values are calculated by a presetting computing formula, a corresponding air quantity regulation value can be obtained according to the calculated value; the quantity and rotating speed of the fans at the position of the air inlet can be controlled according to the regulation value, so as to regulate the air inlet quantity; and a cabinet door of the machine cabinet is connected with a cold pool cabinet body forming an air flow circulating space, the cold pool cabinet body comprises an air inlet passage arranged at the top or bottom of the cold pool cabinet body and a fan module for regulating air quantity. A central control system calculates the received temperature values in all machine cabinets, the running current values of the machine cabinets, the needed air quantity values of the machine cabinets, the self-measuring temperature values of the machine cabinets and the running power values of the machine cabinets by a setting computing formula, so as to control a switching on / off state of the air conditioner connected with the air inlet passage and regulate the total air quantity and the total refrigerating capacity.

The invention discloses a rock-soil body temperature-control dynamic characteristic test system and method, is characterized in that the system includes a dynamic triaxial pressure chamber and a temperature control device; the dynamic triaxial pressure chamber comprises a pressure chamber cylinder body, a piston rod and an upper dowel bar; a sample is arranged between the lower end of the upper dowel bar and the upper end of the piston rod; the dynamic triaxial pressure chamber also includes a pressure sensor, an axial displacement sensor, a deformation sensor, a confining pressure sensor, a lateral displacement sensor and a pore pressure sensor; the temperature control device includes a temperature sensor, a temperature controller and an arc plate type heater symmetrically coating the outer wall of the pressure chamber cylinder body. The temperature-control dynamic characteristic test method mainly includes installing the sample, setting the temperature control device, carrying out drainage consolidation of the sample, applying dynamic / static stress, and completing a temperature-control dynamic / static triaxial test, to determine the cumulative plastic strain, dynamic damping ratio, dynamic elastic modulus and other indexes of a rock-soil body under different temperatures. The system and the method have the advantages of uniform heating temperature, short heating time and low cost, and can accurately control the temperature in the pressure chamber.

A temperature controlled showerhead for chemical vapor deposition (CVD) chambers enhances heat dissipation to enable accurate temperature control with an electric heater. Heat dissipates by conduction through a showerhead stem and fluid passageway and radiation from a back plate. A temperature control system includes one or more temperature controlled showerheads in a CVD chamber with fluid passageways serially connected to a heat exchanger.

The invention discloses a high polymer material ultraviolet laser 3D (three-dimensional) printing method and device for precise temperature control. The device comprises a thermostat, a laser head, a non-contact type temperature monitoring device, a scanning galvanometer, a machining platform, a powder paving device, a machining material and a computer control system. The laser head adopts a dual-tube core structure, an inner tube and an outer tube are coaxially fixed, one or more than one gradual-change neutral filter piece is arranged between the two tubes, and the laser transmittance of the filter piece(s) is radially reduced from the inner tube to the outer tube. The method comprises the following steps: presetting the machining temperature by the control system, in the process of machining, monitoring the temperature rise condition of an object to be machined in real time under the irradiation of laser by the non-contact type temperature monitoring device, feeding back to the control system, recording the increased value of the temperature within a certain time, and obtaining the absorption capability of the material to be machined to the laser and the temperature rise degree by the system, so that according to the preset machining temperature value, the laser output power can be calculated, the laser power can be timely adjusted, and the machining temperature can be precisely controlled.

A reactor comprises a reaction zone, optionally containing a catalyst bed, and heat exchange means inoperative contact with the reaction zone, e.g. embedded in a catalyst bed, and arranged so as to received reactants for heat exchange purposes, wherein the heat exchange means is formed from a plurality of superposed metal plates wherein fluid flow channels have been formed, according t a pre-determined pattern, the channel-bearing plates being aligned during superposition to define discrete heat exchange pathways respectively for reactant and working fluids, and the said plates are diffusion bonded together.

The invention discloses a refrigerator and its temperature control method. The method comprises the following steps: detecting the current temperature of a variable-temperature chamber; judging whether a difference between a shutdown temperature of the variable-temperature chamber and the current temperature is not lower than a first difference temperature; if yes, detecting an ambient temperature of the refrigerator, and judging whether the ambient temperature is not higher than a preset ambient temperature; and if yes, controlling a temperature compensation heater in a first preset mode to heat the variable-temperature chamber, otherwise controlling the temperature compensation heater to operate in a second preset mode. The refrigerator temperature control method of the inventive embodiment can precisely control the temperature compensation heater to carry out temperature micro-adjustment on the variable-temperature chamber in different modes when the set temperature of the variable-temperature chamber is relatively high (usually used for a refrigerating chamber), to make the temperature of the variable-temperature chamber quickly reach the set temperature, and has advantage of high control accuracy, thus contributing to food storage in the variable-temperature chamber and improving practicability of the refrigerator.

This invention relates to a process for conducting a hydrocracking or a hydrotreating process in a microchannel reactor. This invention also relates to a process and apparatus for flowing a vapor and liquid into a plurality of microchannels in a microchannel processing unit.

The invention provides a control method, a control device and a steam cooking device. The control method is used for controlling cooking cavity temperature of the steam cooking device and includes steps of detecting temperature of a cooking cavity of the steam cooking device, controlling operation power of the steam cooking device according to the detected temperature of the cooking cavity so as to control the temperature of the cooking cavity. By the control method, operation power of the steam cooking device can be accurately controlled according to the temperature of the cooking cavity, so that the temperature of the cooking cavity can be controlled, energy consumption caused by fluctuation of the temperature of the cooking cavity is reduced, and steam cooking effect is thereby guaranteed.

Apparatus and methods for thermal conditioning equipment. In a preferred embodiment, an equipment enclosure comprises a body, a wall, a fluid port, and a fixture. The body defines an outer plenum and an inner chamber in the latter of which the fixture retains the equipment. The wall, which is between the outer plenum and the inner chamber, isolates the thermally conditioned first fluid from a second fluid in the inner chamber. Since the wall is thermally conductive it allows heat to be transferred between the outer plenum and the inner chamber. The fluid port is in communication with the outer plenum to allow the thermally conditioned first fluid to flow into the outer plenum. Baffle plates are also provided to distribute flow of the second fluid to the equipment.

The subject invention provides a display element which achieves reduction in driving voltage. The display element according to the present invention includes substrates 1 and 2, at least one of which is transparent, and a medium layer 3 held between the substrates 1 and 2, the display element further including on the substrate 1 electrodes 4 and 5 for generating an electric field in a direction substantially parallel to the substrates so as to apply the electric field to the medium layer3 to cause optical modulation of the medium; and an alignment film 6 which is provided on the surface of the substrate 2. With this arrangement, the voltage level is not decreased because of the alignment film 6, and the driving voltage of the display element does not need to be increased, thereby ensuring reduction of driving voltage.

A temperature controlled showerhead for chemical vapor deposition (CVD) chambers enhances heat dissipation to enable accurate temperature control with an electric heater. Heat dissipates by conduction through a showerhead stem and fluid passageway and radiation from a back plate. A temperature control system includes one or more temperature controlled showerheads in a CVD chamber with fluid passageways serially connected to a heat exchanger.

The disclosed invention relates to a process for conducting a multiphase reaction in a microchannel. The process comprises: forming a multiphase reaction mixture comprising a first reactant (214) and a second reactant (242); the first reactant (214) comprising at least one liquid; the second reactant (242) comprising at least one gas, at least one liquid, or a combination of at least one gas and at least one liquid; the first reactant (214) forming a continuous phase in the multiphase reaction mixture; the second reactant (242) forming gas bubbles and / or liquid droplets dispersed in the continuous phase; and reacting the first reactant (214) with the second reactant (242) in a process microchannel (210) in the presence of at least one catalyst (215) to form at least one product (216).

The invention relates to the field of testing technique of gas sensor and discloses a system for testing calibration and reliability of gas sensor. The system comprises of inlet unit, gas flow monitor, components control unit, gas mixed cavity, vacuum testing cavity and sensor electric parameter measuring device. Gas in said inlet unit is entered in gas mixed cavity to premix under the control of gas flow monitor and components control unit, and then to vacuum testing cavity which has gas sensor to be determined, the said sensor electric parameter measuring device is connected with vacuum testing cavity to detect capacity of gas sensor to be determined in vacuum testing cavity. The present invention avoids the disadvantages of dynamic gas elements capacity testing device in existence, realizes controlling exactly consistence of gas to be measured, testing different gas and controlling exactly temperature of elements.

The invention discloses an underground layered gas-liquid two phase fluid pressure and temperature-retaining sampling device, which is arranged on the inner wall of a drilled hole or a sleeve and consists of a packer system, a liquid sample inlet system, a gas sample inlet system, an automatic multi-way valve, a sampling system, a temperature control system, and an external pressure / flow control system, wherein a thermal-insulation layer or temperature control system covers the outside of the entire sampling device. The device accurately controls the layer under ground fluid sampling positionto realize gas and liquid fluid sampling at different layer positions of a stratum, ensures the temperature and pressure in a sampling process are consistent with those of the underground fluid, and improves the pressure and temperature-retaining degree of the fluid in the sampling process. The principle of the device is simple, the parts are assembled simply and the device is suitable for multilayer sampling in a drilled well and underground gas-liquid two-phase fluid sampling.

Consistent with the present invention, tissue adhesive compositions and an associated laser exposure system are provided for bonding or sealing biological tissues. The compositions are comprised of chemically derivatized soluble collagen which is formulated to concentrations ranging from 300 mg / ml (30%) to 800 mg / ml (80%) collagen protein. In particular, Type I collagen, for example, is first prepared by extraction from bovine or porcine hide and purified. The collagen preparations are then chemically derivatized with sulfhydryl reagents to improve cohesive strength and with secondary derivatizing agents, such as carboxyl groups, to improve the adhesive strength of the solder to the tissue. The compositions are then formed into viscous solutions, gels or solid films, which when exposed to energy generated from an infrared laser, for example, undergo thermally induced phase transitions. Solid or semi-solid protein compositions become less viscous enabling the high concentration protein to penetrate the interstices of treated biological tissue or to fill voids in tissue. As thermal energy is released into the surrounding environment, the protein compositions again become solid or semi-solid, adhering to the treated tissue or tissue space.