320results about How to "Achieve temperature" patented technology

The optical fiber grating sensor detecting pressure and temperature simultaneously consists of mainly free elastic cylindrical pressure transducer, cantilever beam mechanism, fiber grating, sealed part, end element and pre-tensed spring; protective casing and transmission fiber. The technological scheme is that two fiber gratings are fixed to the upper and the lower surface of the cantilever beamin the corresponding positions and connected to transmission fiber via one fiber coupler; that the triangular cantilever beam mechanism converts the radial information of the cylinder under the outer pressure into deflection of the cantilever beam and thus the variation of the Bragg reflection wavelength with temperature and pressure, and that differential measurement technology is used to solvethe cross sensitivity of fiber grating.

The invention provides a cooling device of a fracturing truck. A support of the integrated cooling device of the fracturing truck is connected with a connection base and a chassis crossbeam connection frame through a shock pad by means of a bolt, a control device and a lubrication oil tank provided with a lubrication oil temperature sensor are arranged below the chassis crossbeam connection frame, a fuel tank provided with a fuel temperature sensor is arranged at the lower portion a truck crossbeam, the upper front portion of the truck crossbeam is provided with a hydraulic oil tank provided with a hydraulic oil temperature sensor, an electrically-controlled volume adjustable hydraulic pump is arranged at the lower portion of the hydraulic oil tank, the electrically-controlled volume adjustable hydraulic pump is connected with an engine provided with a water temperature sensor, and the other side of the engine is provided with a transmission tank provided with a transmission tank oil temperature sensor. A horizontal heat sink is respectively provided with an engine water-cooling device, a power end cooling device, a hydraulic cooling device, a fuel cooling device and a transmission tank cooling device. According to the cooling device of the fracturing truck, a horizontal structure and a concentrated heat dissipation mode are adopted, a pipeline of a cooling system is arranged reasonably, and the requirements for the weight and installation space of vehicle-mounted fracturing equipment are met.

The invention relates to the technical field of fiber sensing, and especially to a pre-pumped pulse and Gray code based BOTDA instrument. The BOTDA instrument comprises a narrow-linewidth semiconductor sensor, a coupler, a first erbium doped fiber amplifier, a first polarization controller, a single sideband modulator, a microwave source, an optical isolator, a sensing fiber, an optical annular device, a second erbium doped fiber amplifier, a polarization scrambler, an electro-optical intensity modulator, a second polarization controller, an arbitrary waveform generator, an optical filter, a photoelectric detector and a signal collecting and processing system. On the premise that the high spatial resolution of a BOTDA system is maintained, the BOTDA instrument ensures the sensing distance and the measuring precision of the system, and improves the sensing performance of the system.

The invention provides a greenhouse control system based on an SCM, which comprises a greenhouse execution mechanism, a parameter detecting device used for collecting parameters of the greenhouse and an SCM for the control in the greenhouse. The greenhouse execution mechanism comprises a ventilation system, a heating system, a sunlight shedding system and a pad and fan system or an irrigation system; the parameter detecting device comprises a temperature sensor and a humidity sensor or a lighting intensity sensor; the SCM comprises a database for storing the specialist knowledge of specific crop growth or livestock breeding, a man-computer operation module used for parameter setting and the selection of crop variety or livestock variety, a greenhouse parameter control module which sends a starting instruction to the execution mechanism of the corresponding parameters by the control manner of the specialist knowledge according to the received signals of the parameter detection device; the output of the greenhouse parameter control module is connected with the greenhouse execution mechanism. The system of the invention can increase the production efficiency, reduce costs, have high control precision and can effectively meet the requirements of the growth of greenhouse crops or the breeding of livestock.

A temperature control device controls the temperature of a controlled object by circulating a fluid in a temperature adjustment unit arranged near the controlled object. The temperature control device comprises a heating pathway that heats and circulates the fluid in the temperature adjustment unit, a cooling pathway that cools and circulates the fluid in the temperature adjustment unit, a bypass pathway that does not pass the fluid through the heating pathway and cooling pathway, but circulates the fluid in the temperature adjustment unit, and adjustment means that adjust a flow ratio of the fluid that is supplied from the heating pathway, cooling pathway, and bypass pathway to the temperature adjustment unit via a confluence unit that combines these flows. The adjustment means are provided on a downstream side of each of the heating pathway, the cooling pathway, and the bypass pathway and on the upstream side of the confluence unit.

The invention discloses a dissolved oxygen intelligent transducer, comprising: a dissolved oxygen probe, a temperature electrical conductivity probe, an inciting signal source, a signal conditioning module, a transducer electronic data sheet (TEDS) memory, a microcontroller, a power module and a bus interface module. The dissolved oxygen intelligent transducer integrates the dissolved oxygen probe, the temperature electrical conductivity probe, the TEDS memory, the microcontroller and the bus interface module. The dissolved oxygen probe is used for collecting the dissolved oxygen signal of a water effluent body and the temperature electrical conductivity probe is used for collecting the temperature signal and the electrical conductivity signal, the microcontroller is used for calculating the dissolved oxygen content, the electrical conductivity, the temperature and the practical salinity according to the TEDS parameter memorized in the TEDS memory and the processed dissolved oxygen signal, the temperature signal and the electrical conductivity signal, and output the same by the bus interface module, thus realizing the temperature compensation and salinity compensation for the dissolved oxygen measurement and the online detection of the water body dissolved oxygen.

The invention relates to the grain bin grain temperature and moisture detection field, in particular to a digital sensing device for carrying out on-line grain temperature and moisture measurement in a grain bin. The sensing device solves the problem that the prior grain situation measuring and controlling system can not simultaneously carry out the accurate on-line grain temperature and moisture measurement; the device comprises a tensile wirerope, a plurality of grain temperature and moisture sensors which are fixed along the tensile wirerope and connected in parallel with each other and a plastic cladding externally wrapped on the tensile wirerope and the grain temperature and moisture sensors; the digital signal transmission lines of all the grain temperature and moisture sensors are connected with each other. Each grain temperature and moisture sensor comprises a hard plastic tube with an in-built thermistance and a metal cylinder respectively sleeved and fixed on two ends of the hard plastic tube to form a detecting capacitor; the hard plastic tube is provided with a measuring circuit inside for measuring the variable quantity of the detecting capacitor and the thermistance. The digital sensing device has reasonable structure and low manufacturing cost, adopts a digital transmission mode and can carry out the accurate on-line grain temperature and moisture measurement in the grain bin.

The invention discloses a simulated interface adapter of an aircraft engine control system. The simulated interface adapter comprises an interface configuration management and signal monitoring module, a signal switching module, a signal wiring module, a fault injection module, a signal conditioning module and an interface control module. The interface configuration management and signal monitoring module is connected with the signal switching module, the signal wiring module, the fault injection module, the signal conditioning module and the interface control module. The signal switching module, the signal wiring module, the fault injection module, the signal conditioning module and the interface control module are sequentially connected. The signal switching module is connected with a controller of the aircraft engine control system. The interface control module is connected with an external real-time hardware platform. The open and modularized overall simulated structure is adopted for separating all the modules from one another, the real-time simulated platform of various interfaces is supported, and expansibility and maintainability are remarkably improved.

Provided is a preparing method of aperture-adjustable graphene aerogel. The graphene aerogel is prepared from graphene oxide through a reduction freezing method and has the advantages that the aperture adjustable range is 5-240 micron, the highest elasticity modulus is 327 kPa, and organic solvents can be absorbed. A freezing device used in the freezing step is composed of a cooling system and a temperature measuring system, the reduction freezing temperature interval is -10 DEG C to -196 DEG C, and the temperature is lowered by 0.2-20 DEG C every second. Ice crystals are used as the templatefor precisely adjusting the appearance of the aerogel, and the graphene aerogel with different apertures is obtained. The small-aperture graphene aerogel prepared under the high-speed freezing condition has extremely high mechanical performance and heat conduction and electric conduction performance and can be used in the catalysis and battery fields. The large-aperture graphene aerogel prepared under the low-speed freezing condition has extremely high oriented adsorption performance and can be used for sewage treatment. The superlarge-aperture graphene aerogel prepared under the superlow-speed freezing condition has extremely high compression and resilience performance and can be used for a pressure sensor.

The invention discloses a narrow-band distributed feedback laser wavelength scanning fiber bragg grating sensing device, which senses and detects external physical quantities in the following way that: the device comprises a current-driven distributed feedback laser controlled by a temperature control circuit; light emitted from the laser enters a sensing fiber bragg grating through an optical isolation unit; the light passing through the fiber bragg grating enters an opto-electric receiving unit and then enters a control analysis unit in a form of electrical signal; the output wavelength of the distributed feedback laser can be regulated by changing a control temperature; and a grating reflection centre wavelength and a corresponding external physical quantity are reckoned according to an extremum output by the opto-electric receiving unit when the output wavelength of the laser is matched with the fiber bragg grating reflection centre wavelength by temperature scanning. Compared with a conventional structure where sensing is realized by performing wavelength demodulation at the output end of the fiber bragg grating with a broadband light source, the narrow-band distributed feedback laser wavelength scanning fiber bragg grating sensing device has the characteristics of great production cost reduction, and miniature and low-cost engineering.

The temperature control device comprises a heating pathway that heats and circulates the fluid in the temperature adjustment unit, a cooling pathway that cools and circulates the fluid in the temperature adjustment unit, a bypass pathway that circulates the fluid in the temperature adjustment unit without passing the fluid through the heating pathway and the cooling pathway, an adjustment means that adjusts a flow ratio of the fluid that is supplied from the heating pathway, cooling pathway, and bypass pathway to the temperature adjustment unit, and a flow means that flows the fluid in order to circulate the fluid, and wherein a heating unit for heating the fluid is arranged in the heating pathway, and the flow means is disposed downstream from the heating unit along at least one of the pathways for circulating the fluid.

The invention relates to a distributed temperature testing system and method for a hot dry rock deep well. The system comprises a distributed optical fiber temperature collection device, a logging winch, a well descending device and a temperature measuring optical cable, wherein the distributed optical fiber temperature collection device is used for completing collection of temperature along the temperature measuring optical cable and data processing; the logging winch is used for containing and transporting the temperature measuring optical cable and further used for providing a power source for fixed-depth and uniform-speed descending and winding of the temperature measuring optical cable; the well descending device is used for mechanical fixation and guidance for descending and winding of the temperature measuring optical cable; and the temperature measuring optical cable serves as a temperature sensing element and a data transmission channel. The system and the method achieve distributed temperature measurement of the hot dry rock deep well, and have the characteristics of resisting high temperature and high pressure, resisting electromagnetic interference, being free of limitation of severe environments like complex geometric space, and the like.

A freeze-drying device water-collecting system, its characteristics are: the prolonging section or lower or two sides of the drying warehouse (1) end away warehouse door (18) is divided by the baffle (2) as the cold-trap warehouse bodies (3) of the water collectors; the baffle (2) is equipped with venting window (16); or the cold-trap warehouse bodies (3) installed individually are connected with the drying warehouse (1); the cold-trap warehouse bodies (3) are equipped with many water collectors; the water collector (7) with minimum surface area is installed near the side of drying warehouse (1) in the cold-trap warehouse bodies (3) and the collector (8) with maximum surface area is installed near another side in cold-trap warehouse bodies (3); the water collectors with middle surface area are installed between the water collector (7) with minimum surface and the collector (8) with maximum surface area sequentially; the upper of rear closed head of drying warehouse (1) or cold-trap warehouse bodies (3) is equipped with vacuum valve (6) which is connected with the vacuum system. The invention can increase the production efficiency of freeze-drying machine, improve product quality, reduce energy consumption and simplify the structure of equipments.

The invention discloses a novel concrete intelligent temperature control system and method. The system comprises a main server, an intelligent monitoring main control room and branch control stations. The main server of the system is responsible for data storage, management, calculation, analysis, pre-warning, forecasting and instruction transmission of the whole system and can dynamically and visually display all types of temperature control information in form of graphs, lists and lines, and related workers can conveniently conduct supervision and management. The intelligent monitoring main control room directly distributes instruction information of the main server to all the branch control stations and can send temperature control information of all the branch control stations to the main server in a concentrated mode. The branch control stations draw all monitoring devices to the system so that management and information transmission can be conveniently conducted. By means of the modularized, unitized and systemic design, the true temperature and stress, influenced by the true environment where various factors exist at the same time, of concrete are achieved, man-made influence factors are reduced through intelligent water injection, and rapid and high-quality construction of large-size concrete are ensured under the complex environment conditions.

The invention provides a distributed type fiber sensing device based on signal reusing perception and demodulation, comprising a laser, a first fiber coupler, a second fiber coupler, a light pulse modulator, a fiber annular device, an optical interface, a balance photoelectric detector, a low noise amplifier, a power divider, a first filter, a second filter, a frequency synthesizer, a mixer, a lowpass filter, a data collecting and processing module, and a computer. The feature that rayleigh scattering signals and Brillouin scattering signals can be generated at the same time is taken into consideration, and by means of the balance photoelectric detector, the rayleigh scattering signals and Brillouin scattering signals of the detection light pulse, generated in the detected fiber are simultaneously converted into radiofrequency signals of the corresponding frequency or frequency range. The rayleigh scattering signals and the Brillouin scattering signals are separated by means of the power divider and a band pass filter. The separated rayleigh scattering signals and the Brillouin scattering signals are accessed to the data collecting and processing module. The attenuation, vibration, and monitoring and displaying of the temperature and strain information of the fiber can be realized.

The invention discloses ITO-Ag-ITO etching liquid for an AMOLED. The liquid comprises, by weight percentage, 3% to 10% of nitric acid, 10% to 25% of acetic acid, 30% to 60% of a mixture of phosphoric acid and soluble orthophosphate, 1% to 5% of an additive and the balance deionized water, wherein the additive comprises nitrate. The soluble orthophosphate is added so that the viscosity of the etching liquid can be properly increased, it is guaranteed that the etched surface has the reasonable reactant and product concentration gradient in the etching process, and compared with the prior art, the silver etching speed can be properly reduced, the even etching effect can be achieved, and the controllable electrode shape is obtained; and decomposition of the acetic acid, the nitric acid and nitrous acid in the etching process can be remarkably reduced, and environment-friendly production of the etching process can be achieved conveniently.

The invention relates to the technical field of home environment application, in particular to an intelligent temperature regulating and controlling system and method. Various information of an environment and a human body is extracted through a temperature acquisition module arranged inside a mobile terminal and a pyroelectric infrared sensor arranged at the top of a room in real time, and after wind-power wind direction and temperature values are obtained through calculation and analysis, a transmitting unit arranged on a mobile phone simulates an air conditioner controller to send the values to an air conditioner so as to achieve an automatic temperature regulating function and a human body wind sheltering function of the low-end air conditioner and further achieve the purpose of enabling the human body to enjoy the comfortable environment in a low-cost mode and the energy-saving purpose.

The invention discloses a multi-field coupling device which is based on the simulated conditions of real active servicing of IC, and consists of a main workroom, a slide valve, a molecular pump, a mechanical pump, a high-voltage DC power source, a control cabinet, a heater component, a copperplate, a supporting rod of an electric field and a supporting board with a ceramic gasket, and the heater component is arranged on the back part of the copperplate. The invention implements the coupling of the electric field and a temperature field in high vacuum and the largest electric field intensity can achieve 2000 volts per centimeter, the highest temperature is 800 DEG C, the vacuum can achieve 3.0 multiplied by 10 minus 4 Pa. The invention provides the working condition simulation of IC active servicing, and by coupling the electric field and the temperature field in high vacuum, the invention implements a processing experiment of inside conducting wire of metallic Cu which is important in IC under the multi-field coupling, thus veritably reflecting the changes of the microstructure characteristics and the failure mechanism of the working Cu wire, and providing great valuable experiment data for evaluating the service life of microelectronic elements. The device of the invention has simplicity, convenient operation and good implementation effects.

The invention discloses an intelligent temperature control method for an array light receiving/transmitting module in an optical switch. The scheme comprises a temperature sensor, a voltage amplifying circuit, an 8-channel 16-bit D/A (digital/analogue) conversion module, an 8-channel 16-bit A/D conversion module, a central processing module, an FPGA (field programmable gate array) configuration module, a semiconductor refrigerator TEC, a keyboard, a liquid crystal display screen, a serial communication module and the like. The temperature sensor bonded with the array light receiving/transmitting module converts a temperature signal into a voltage signal which is amplified and then processed by the A/D conversion module and transmitted to the central processing module; the central processing module calculates a control quantity by using a temperature control algorithm, and the control information is converted into a control quantity of the TEC by the D/A conversion module; and the TEC realizes multi-point intelligent temperature control. The invention can implement temperature control on multiple modules at the same time in a large range and has the characteristics of real-time performance, high precision, high efficiency, large temperature control range, high extensibility and the like.

The invention relates to a high-efficiency electromagnetic induction heating device for molten steel in a tundish. The high-efficiency electromagnetic induction heating device comprises the tundish, a fireproof wall body, electromagnetic induction channels, an electromagnetic induction coil A, an electromagnetic induction coil B, a steel bearing cavity of the tundish and a power supply device. A steel body of a casting cavity and a steel body of the steel bearing cavity of the tundish are overall integrated; the inside of the steel bearing cavity and the inside of the casting cavity of the tundish are isolated through the fireproof wall body; the two electromagnetic induction coils are arranged in the fireproof wall body, and the electromagnetic induction channels are arranged on the two sides of the electromagnetic induction coils so that the steel bearing cavity and the casting cavity of the tundish can be communicated; the two electromagnetic induction coils are in series connection with the power supply device. According to the high-efficiency electromagnetic induction heating device for the molten steel in the tundish, a closed-loop iron core is arranged in the tundish, the two electromagnetic induction coils are in series connection with the iron core, as a result, the problem that an outer shell of the tundish emits heat due to flux leakage when an electromagnetic induction heating device is additionally arranged in the tundish is solved, and the problems of flow fields and insufficient space also can be solved.

The invention relates to the technical field of cotton processing, in particular to a temperature-raising/temperature-measuring humidifying control method for ginning processing. The temperature-raising/temperature-measuring humidifying control method comprises a heavy impurity separating working section, a automatically-controlled seed cotton storing working section, a drying working section, a seed cotton cleaning working section, a cotton assorting working section, a ginning working section, a lint cotton cleaning working section and a sampling and packing working section, wherein a temperature-raising/temperature-measuring humidifying working section is arranged between the drying working section and the seed cotton cleaning working section; temperature-raising/temperature-measuring humidifying treatment is performed on seed cotton discharged from the drying working section in the temperature-raising/temperature-measuring humidifying working section, so that the temperature of the seed cotton is controlled at 15-40 DEG C; and the humidity of the seed cotton is controlled at 5-10%. Through seed cotton heating pretreatment, seed cotton temperature-raising/temperature-measuring humidifying treatment, and heat-preserving and heating treatment by adding a warming room and a warming pipeline, the temperature and the humidity of the seed cotton can meet processing requirements; the temperature-raising/temperature-measuring humidifying control method has the characteristics of convenience for regulation and control, good effects during the seed cotton heating pretreatment, the seed cotton temperature-raising/temperature-measuring humidifying treatment and the seed cotton heat-preserving treatment; operation is facilitated; the comprehensive grade of lint cotton is greatly improved; and the production cost is reduced.

The invention discloses a novel file management cabinet. The novel file management cabinet comprises a base, idler wheel supporting rods, idler wheels, stabilizing devices, grooves, damping springs, a dryness control device, a cabinet body, telescopic moving partition boards, horizontal partition boards, limiting blocks, connecting blocks, lead screws, cushion blocks, friction blocks and a ventilation hole. The space in the cabinet body can be adjusted freely through cooperation of the telescopic moving partition boards and the horizontal partition boards inside so that files in different sizes can be placed in the cabinet, and the comprehensive utilization rate of the file management cabinet is increased greatly; due to the fact that multiple small ventilation holes are evenly formed in each horizontal partition board, ventilation in the cabinet body is smooth; through the dryness control device and the ventilation hole on the top of the cabinet body, control over the temperature and moisture in the cabinet body is achieved, and long-term storage of files is ensured; meanwhile, a support of the cabinet is designed ingeniously, so that the cabinet can be placed more stably and moved more conveniently.

The invention relates to a heat balance adjusting method and an intelligent monitoring system based on the heat balance adjusting method. The heat balance adjusting method is characterized in that by adjusting the indoor temperature balance between terminal users, the balance of temperature flow between heat exchange stations and the balance between the heat needing amount of the heat exchange stations and the heat supply amount of a heat source, and rapid balance of the heat needing amount of the terminal users and the total heat supply amount is finally achieved; and the terminal users can rapidly obtain and keep the comfortable indoor temperature, a heating power company can adjust the heat supply amount in time, and the requirements of energy saving, consumption reduction and emission reduction are met.

The invention relates to an OPGW icing thickness measuring method and a measuring device thereof. The method comprises the following steps: (1) monitoring icing condition of OPGW ground lines in a real-time manner; (2) when the thickness of the ice on the OPGW ground lines is beyond the alert thickness, de-icing alert information is sent out; (3) establishing a de-icing circuit according to the de-icing alert information; (4) carrying out de-icing operation according to the de-icing circuit; (5) monitoring and collecting de-icing temperature and progress of the OPGW ground lines; and (6) when the icing fall-off degree of the OPGW ground lines meets the requirements, de-icing operation is stopped. The technical proposal of the method and the device provided by the invention enables icing continuous measurement of the OPGW.