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108 results about "Semiconductor sensor" patented technology

The semiconductor (or IC for integrated circuit) temperature sensor is an electronic device fabricated in a similar way to other modern electronic semiconductor components such as microprocessors. Typically hundreds or thousands of devices are formed on thin silicon wafers.

Aircraft environment monitoring method and system integrated with semiconductor sensor

The invention discloses an aircraft environment monitoring method and system integrated with a semiconductor sensor. The method comprises the steps that S10, a semiconductor sensor array deployed on the surface of an aircraft is used for collecting temperature, humidity, air pressure, gas concentration and surface wind speed data in real time; s20, performing format standardization and error correction on the collected original environment data through a multi-channel data fusion engine, and constructing a unified input vector; s30, calculating a multi-dimensional fluctuation amplitude value of the input vector in the flight mission time window, and judging whether to trigger a high-frequency monitoring mode or not based on the value; s40, performing convolution fitting on the fluctuation amplitude value and a historical trend curve, and calculating a real-time environment disturbance index for updating a steady-state control parameter of the aircraft; s50, dynamically adjusting a control surface response strategy of the aircraft according to the disturbance index and synchronously generating a safety prompt level; and S60, uploading whole-process monitoring and response data to a ground monitoring center for intelligent optimization of model retraining and subsequent task planning.
Owner:WENZHOU DOVER AVIATION IND GROUP CO LTD

Indoor gas leakage monitoring and intelligent joint control system

The invention discloses an indoor gas leakage monitoring and intelligent joint control system, and belongs to the technical field of intelligent safety monitoring systems. Comprising a sensing layer, a network layer, a control layer and a platform layer, the sensing layer comprises a multi-sensor array and an edge computing node, the multi-sensor array is combined with a catalytic combustion sensor, an infrared sensor, a semiconductor sensor and a temperature and humidity sensor, and sensor data are fused through a weighting algorithm so as to reduce the false alarm rate; a temperature and humidity sensor dynamically adjusts a detection threshold value to adapt to different climate conditions, and an edge computing node is deployed with a lightweight machine learning model. Through multi-sensor data fusion and a weighting algorithm, the false alarm rate is reduced to be smaller than 0.1% per year, environment self-adaptive calibration and AI auxiliary decision making are performed, interference of alcohol, perfume and the like is effectively eliminated, different climate conditions are adapted, leakage judgment is completed at an equipment end through edge calculation, cloud delay is avoided, a multi-stage emergency strategy is provided, and intelligent safe ecology driven by the Internet of Things is constructed.
Owner:YANAN GAS CO LTD

Gas detection system based on AI technology and method thereof

The invention relates to the technical field of gas detection, in particular to a gas detection system and method based on an AI technology, and the system comprises a differential sensing module, a drift compensation processor, a dynamic risk assessment unit and a cloud-edge collaborative learning framework. Compared with the prior art which adopts a single-sensor independent compensation scheme and has the defects that the false alarm rate is high and long-term drift is difficult to correct under environmental interference, the scheme innovatively introduces a dual-mode differential sensing architecture and an adaptive drift compensation algorithm, a reference sensor is packaged in an inert gas environment, and the reference sensor and a main sensor are subjected to real-time collaborative analysis; the pre-trained lightweight neural network is combined to dynamically eliminate temperature and humidity cross interference, the detection precision and stability under complex working conditions are remarkably improved, and the aging distortion problem of the semiconductor sensor is effectively solved.
Owner:SHENZHEN MEIXINCHUANGJING CO LTD

Beam halo detection device and method based on semiconductor sensor

The invention discloses a beam halo detection device and method based on a semiconductor sensor. The device comprises the semiconductor sensor, a driving module, a data acquisition module and a processing module, a first end of the driving module is connected with the semiconductor sensor, a second end of the driving module is connected with a first end of the processing module, the driving module is used for moving the semiconductor sensor along a first direction to scan a beam halo, and a second end of the semiconductor sensor is connected with the data acquisition module; the semiconductor sensor is used for generating a corresponding radio frequency electric signal according to a scanning signal of the beam halo; the data acquisition module is used for receiving radio frequency electric signals and transmitting the signals to the processing module; and the processing module calculates the beam halo distribution of the beam halo according to the radio frequency electric signal. According to the beam halo detection device provided by the invention, the beam halo is detected through the semiconductor sensor so as to obtain beam halo distribution, so that the beam halo detection device not only has an enough high signal-to-noise ratio, but also can realize a measurement dynamic range greater than 106.
Owner:CHINA SPALLATION NEUTRON SOURCE SCI CENT +1

In-situ construction method and application of gas sensor for detecting volatile aroma substances

The invention relates to the technical field of semiconductor gas sensors for gas detection, in particular to an in-situ construction method and application of a gas sensor for volatile aroma substance detection, and the in-situ construction method comprises the following steps: mixing an aqueous solution of zinc nitrate hexahydrate and an aqueous solution of 2-methylimidazole according to different molar ratios to obtain a precursor solution; upwards fixing a planar electrode on the surface of a glass slide, and then transferring the planar electrode into the precursor solution; carrying out hydrothermal reaction on the precursor solution at 90 DEG C for 4 hours, after the hydrothermal reaction is finished, cooling to normal temperature, taking out the glass slide, washing the surface of an electrode by using deionized water, removing impurities, and then carrying out drying treatment; calcining the obtained dried electrode in an air atmosphere at 500 DEG C for 2 hours to construct an in-situ growth semiconductor sensor; according to the present invention, the rapid sensing response on nine volatile aroma substances is achieved, and the excellent gas sensitive characteristic is represented in the gas sensitive research on the volatile substance ocimene in the volatile aroma substances.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Main shaft lifting and rotating device used for vapor deposition equipment and using method of main shaft lifting and rotating device

The invention discloses a main shaft lifting and rotating device for vapor deposition equipment and a using method, and relates to the technical field of vapor deposition equipment.The main shaft lifting and rotating device comprises a support, a chemical vapor deposition furnace is fixedly installed on the top face of the support, and a furnace door is installed on the front side wall of the chemical vapor deposition furnace through a connecting piece; the lifting and rotating mechanism is arranged in the furnace door, the lifting and rotating mechanism comprises a base, a mounting groove is formed in the top surface of the base, a servo motor is fixedly mounted in the mounting groove, and the top surface of the base is rotationally connected with a main shaft body. Real-time monitoring and accurate control of the concentration of mixed gas in the reaction chamber are achieved, an electrochemical sensor, a resistance-type semiconductor sensor and a heat-conducting gas sensor in the detection assembly can accurately measure the concentration of methyl trichlorosilane, the concentration of hydrogen and the concentration of argon respectively, and comprehensive monitoring of gas components in the reaction chamber is guaranteed.
Owner:HANGZHOU ATOM TECHNOLOGY CO LTD

Sensor for detecting gas based on two-dimensional material

The invention discloses a sensor for detecting gas based on a two-dimensional material, and relates to the technical field of semiconductor sensors and battery safety. In order to solve the problems that an existing lithium ion battery management system lags in early warning and a traditional sensor is difficult to integrate and not resistant to corrosion, flexible polyimide is used as a substrate of the sensor, a back gate type two-dimensional material field effect transistor serves as a core, and a gate dielectric layer is arranged between a gate and a two-dimensional material channel in a spaced mode. A functional modification layer is arranged on the surface of the channel to improve the gas recognition specificity, a breathable hydrophobic layer covers one side deviating from the gate dielectric layer, and the breathable hydrophobic layer is matched with a passivation layer and a sensing window to form anti-corrosion packaging. The sensor can be implanted into a battery, real-time in-situ detection of ppb-level trace characteristic gas is realized through an adsorption-charge transfer-field effect amplification mechanism, and the sensor is linked with a BMS (Battery Management System) to realize ultra-early warning of thermal runaway. The device has the advantages of flexibility, easiness in integration, high sensitivity, corrosion resistance and long service life, and the safety management level of the battery is greatly improved.
Owner:STARRY SKY SOURCE STORAGE (XIAMEN) TECHNOLOGY CO LTD

Detection device, detection method, and program

PCT designated stage expiredWO2025074932A1Material resistanceSemiconductor sensorTesting Methods
The present invention provides a technology for identifying or quantifying allergens such as pollen, mold, and mites. This detection device uses a plurality of semiconductor sensors. With respect to the same gas component, the plurality of semiconductor sensors indicate relatively different response characteristics. The detection device: acquires signal patterns detected by the plurality of semiconductor sensors; identifies or quantifies an allergen from the plurality of signal patterns; and outputs a result of identification or quantification.
Owner:DAIKIN INDUSTRIES LTD

Medium-high-entropy alloy air suction target material, air suction film and preparation method of medium-high-entropy alloy air suction target material

The invention relates to the field of semiconductor MEMS (Micro Electro Mechanical System) devices, and discloses a medium-high-entropy alloy air suction target material which is composed of a main element A, an element C and an element B. The content of the main element A is 25-40 at%, the content of the element B is 30-45 at%, and the content of the element C is 30-45 at%; the formula equation is as follows: A < 25-40 > B < 30-45 > C < 30-45 >; the main element A is selected from one or two of V and Co; the element C is selected from one or more of Fe, Pr, Y, Gd, Nd, Er, Sm and Ce. And the element B is selected from one or two of Ti and Zr. According to the invention, the problem of serious contradiction between the air suction performance and the mechanical property of the current semiconductor MEMS sensor packaging material is solved by utilizing the advantages of rich or multi-principal-element alloy, high mixing entropy and the like in the medium-high-entropy alloy.
Owner:SHANGHAI JINGWEI MATERIAL TECHNOLOGY CO LTD

Household wall-mounted combustible gas detector

The invention discloses a household wall-mounted combustible gas detector. A composite sensor unit comprises a semiconductor sensor and a catalytic sensor; the signal processing circuit is connected with the composite sensor unit; the control and communication module comprises an MCU and a LoRaWAN communication module. The MCU performs analysis, logic control and communication functions on sensor data; the LoRaWAN communication module performs data interaction with the outside; the control system has a multi-sensor cooperative detection mechanism, the semiconductor sensor is started when the concentration is low according to a set threshold value, the catalytic sensor is switched when the concentration is high, and the data of the semiconductor sensor and the catalytic sensor are fused to improve the full-scale detection reliability. Through cooperative work of a semiconductor sensor and a catalytic sensor in the composite sensor unit, full-scale coverage from trace leakage to dangerous concentration is realized. The semiconductor sensor ensures early-stage rapid early warning under low concentration, and the catalytic sensor keeps stable precision at a high concentration section, so that the problem that the range of a single sensor is limited is effectively solved.
Owner:SICHUAN JIUYUAN INTELLIGENT FIRE EQUIP CO LTD

Method for constructing and detecting noble metal-sensitized volatile aroma substance sensor

The invention relates to the technical field of tea aroma detection, in particular to a noble metal-sensitized volatile aroma substance sensor construction and detection method, which comprises the following steps: dissolving zinc acetate dihydrate, urea and trisodium citrate dihydrate in deionized water to obtain a mixed precursor solution; controlling the hydrothermal reaction of the precursor solution; after naturally cooling to room temperature, washing, centrifuging, drying and calcining to obtain a zinc oxide material; the preparation method comprises the following steps: impregnating a zinc oxide material with deionized water, adding an ammonium carbonate solution while stirring, stirring, and then adding a noble metal solution to obtain a noble metal modified zinc oxide mixed solution; centrifuging, drying and calcining to obtain a powder zinc oxide loaded noble metal material; dissolving the zinc oxide loaded noble metal material in ethanol, performing ultrasonic treatment to form turbid liquid, and further dispensing the turbid liquid to the surface of a planar electrode to construct a semiconductor sensor for detecting tea aroma; the sensor prepared by the method has excellent sensing characteristics of high sensitivity, high stability and the like on tea aroma.
Owner:ANHUI AGRICULTURAL UNIVERSITY

A high concentration hydrogen sensor and its preparation method and use

The present invention belongs to the technical field of hydrogen sensors, and in particular, is a sensor suitable for testing hydrogen gas concentrations above 1%. The present invention is aimed at the difficulty of semiconductor-based gas sensors in sensing high-energy concentration hydrogen. Considering that precious metals such as palladium, gold, and platinum have selective adsorption of hydrogen and catalytic overflow effects on hydrogen, the activation energy of the reaction is reduced, and the synergistic effect of precious metals and semiconductors is used to increase the upper limit of hydrogen detection. A porous tin oxide or indium oxide porous film doped with precious metals is prepared as a semiconductor sensor device for detecting high-concentration hydrogen. The semiconductor high-concentration hydrogen sensor can detect hydrogen gas with a concentration of more than 1%, and has good reusability.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES +1

Gas detection system based on multifunctional sensing technology and application thereof

The invention provides a gas detection system based on a multifunctional sensing technology and application thereof, and belongs to the technical field of sensing. The gas detection system comprises a gas collecting and processing module, a sensing detection module and a signal processing and analyzing module, and the sensing detection module comprises a metal oxide semiconductor sensor unit, a black phosphorus material modified transistor unit and a hollow-core optical fiber enhanced Raman spectrum detection unit. The multi-dimensional gas detection device is used for performing multi-dimensional detection on treated gas, and high-sensitivity and high-selectivity detection on various gases is realized. The gas detection system can accurately judge the type and concentration of gas through cooperative work of all the modules, has the advantages of quick response, real-time monitoring, high stability and reliability and the like, provides a comprehensive solution for gas monitoring, and is suitable for multiple fields such as environment monitoring, industrial safety, medical health or smart home / intelligent traffic and the like.
Owner:WUHAN UNIV

Semiconductor sensor and method for manufacturing same

This semiconductor sensor (100) comprises: a semiconductor detection element (3); a detection chamber (7) to the inside of which the semiconductor detection element (3) is fixed; a signal terminal (11) that has one end side exposed to the inside of the detection chamber (7) and the other end side exposed to the outside from the detection chamber (7) and outputs an electric signal output from the semiconductor detection element (3) to the outside; a wire (10) that connects the semiconductor detection element (3) and a signal terminal exposure part (11a) that is a part on the one end side of the signal terminal (11) exposed to the inside of the detection chamber (7); and a protective film that continuously covers the semiconductor detection element (3), the wire (10), and the signal terminal exposure part (11a). The protective film is an inorganic barrier film (19).
Owner:MITSUBISHI ELECTRIC MOBILITY CORP

Deodorizing apparatus and adaptive deodorizing control method

The application provides a kind of deodorization equipment, including support frame and control module, the support frame is connected with support frame on buffer damping member, the right end of the support frame is provided with first purification part, the left end of the support frame is provided with second purification part, the air inlet of the first purification part is connected with air inlet pipe, the outer side of the air inlet pipe is provided with multi-modal perception module and environmental parameter acquisition module, the multi-modal perception module includes electrochemical gas sensor array for detecting the concentration of multiple specific gases, and metal oxide semiconductor sensor for detecting the intensity of environmental comprehensive odor;The environmental parameter acquisition module is used to collect environmental temperature and humidity data;The left of the support frame is provided with a controller, and the controller is provided with the control module;The application can realize real-time monitoring of environmental odor changes, adaptive adjustment of purification intensity, effective reduction of energy waste, improvement of deodorization efficiency and adaptation to various odor types.
Owner:FUJIAN RISING FOOD CO LTD

Combustible gas alarm

The invention discloses a combustible gas alarm, and belongs to the field of alarms, the combustible gas alarm comprises an alarm main body and a detection head fixedly mounted with the alarm main body, an exhaust cavity is formed in the alarm main body, a standing cavity is also formed in the alarm main body, and external air can enter the standing cavity through the detection head. A semiconductor sensor is fixedly installed on the inner wall of the groove. Through the arrangement of the standing cavity, the electric telescopic rod, the first one-way valve, the semiconductor sensor and the piston disc, the electric telescopic rod works to drive the piston disc to move up and down, and gas stands in the standing cavity, so that the influence of air flow entering from the outside of the alarm main body is reduced; therefore, the semiconductor sensor has enough time to detect the content of the methane gas in the standing cavity, and the situation that the gas which is being detected by the semiconductor sensor is not completely detected and the part which is not completely detected is blown away by new gas is reduced, so that the detection accuracy of the semiconductor sensor is improved.
Owner:宋浩燕

Electronic systems and methods for health analysis from breath

A system and method for analyzing an air sample from a human uses a collection module that has a plurality of metal oxide semiconductor sensors that have different resistance responses to different gaseous compounds. A detector circuit reads the output of the sensors as analog signals for both ambient air and the air sample from the human. The ratios of the analog signals from ambient air and from the air sample can be compared to similar information from other health and unhealthy human subjects to determine the health status of the human. In one embodiment the system is used for breath analysis.
Owner:GRANT NICHOLAS +2

GIS partial discharge rapid positioning method based on multi-normal projection principle

The invention discloses a GIS partial discharge rapid positioning method based on a multi-normal projection principle, and relates to the technical field of partial discharge on-line monitoring, a three-dimensional photoelectric array formed by silicon optical semiconductor sensors is used for obtaining a partial discharge signal amplitude, a direction vector is constructed, and a unit direction is obtained through solving a local intersection point. And further combining with least square optimization of multi-unit rays to obtain initial position estimation of the partial discharge source. On the basis, an amplitude correction and iteration updating mechanism is introduced, observation data are corrected, and a real position is gradually approached, so that high-precision three-dimensional partial discharge source positioning in a complex electromagnetic environment is realized. Through the combination of the silicon optical sensor three-dimensional array and the improved multi-vector projection iterative algorithm, high-precision partial discharge positioning can be realized in a complex electromagnetic environment, the operation reliability and the operation and maintenance efficiency of equipment are remarkably improved, and the method has a wide engineering application prospect.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO

Fire regulation field gas detection device and method based on multi-mode sensor array

The invention discloses a multi-modal sensor array-based fire regulation field gas detection device and method, and particularly relates to the technical field of gas detection, the device comprises a detection groove disc, a wireless controller, an electrochemical sensor and a gas detection assembly; the gas detection assembly comprises a metal oxide semiconductor sensor, a carbon dioxide infrared sensor, a PID sensor, a temperature and humidity sensor, a gas pressure sensor, a plurality of positioning cylinders, two elastic sheets, a sliding column and a triangular guide block. According to the invention, the gas detection assembly is adopted and has the advantages of ensuring that each sensor can accurately detect different gases in turn according to a specified fire coordinate position and improving the accuracy of multi-modal array detection of fire regulation field gases, so that the problem that in the detection process of the multi-modal sensor array, the detection accuracy of the multi-modal sensor array is influenced due to limitation is solved. It is difficult to ensure that each sensor can accurately detect different gases according to a specified fire coordinate position, so that the accuracy of the whole detection result is influenced.
Owner:SHENYANG FIRE RES INST OF MEM

Industrial gas detection device

The utility model relates to the technical field of gas detection, in particular to an industrial gas detection device. According to the technical scheme, the device comprises a device base, a detection box is fixed to the upper end of the device base, a cover plate is fixed to the front end of the detection box through locking screws, a controller is installed on the rear side of the detection box, a detection air channel is formed in the detection box, detection air pipes are installed on the rear side of the upper end of the detection air channel, and the detection air pipes are linearly distributed; an electrochemical sensor, an infrared sensor and a semiconductor sensor which are used for detecting different gases are respectively mounted in the detection box, and the upper ends of the detection gas pipes extend out of the detection box. By means of sliding of the sliding block, gas can be guided into the detection gas pipe provided with the corresponding sensor for gas detection, special detection can be conducted on different kinds of gas, the detection accuracy is improved, before detection, gas in the detection gas channel can be emptied, the influence of residual gas on a detection structure is reduced, and the detection efficiency is improved. The detection accuracy is improved.
Owner:JINAN LUYAN ENVIRONMENTAL TESTING CO LTD

Detection device, detection method, and program

The invention provides a technology for identifying or quantifying allergens of pollen, mould, mites and the like. The detection device uses a plurality of semiconductor sensors. The plurality of semiconductor sensors exhibit relatively different response characteristics to the same gas composition. The detection device acquires the signal patterns detected by the plurality of semiconductor sensors, identifies or quantifies the allergen from the plurality of signal patterns, and outputs an identification or quantification result.
Owner:DAIKIN INDUSTRIES LTD

Lung testing device

A device for determining measurement values describing the function of the lungs or the respiratory system of a patient includes a mouthpiece including a tube for introducing respiratory air and for sucking in air, and a gas measurement space. At least one of the following gas sensors is arranged in the gas measurement space: nitrogen monoxide sensor, carbon dioxide sensor, oxygen sensor, carbon monoxide sensor, multi-gas sensor, sensor for volatile organic compounds, alkane sensor, infrared sensor, fiber optic sensor, resistance sensor, and semiconductor sensor. The gas measurement chamber is separated by a closable opening into a first gas measurement chamber and a second gas measurement chamber, the second gas measurement chamber being closed or closable. The closable opening opens a flow path from the first gas measurement chamber into the second gas measurement chamber. A gas sensor is arranged in the second gas measurement chamber.
Owner:7S HEALTH CARE GMBH

Pet detector

The application provides a PET detector. The PET detector comprises: a crystal array comprising a plurality of crystal units arranged in a single layer, the crystal units extending in a top-bottom direction and having a top surface, a bottom surface and a side surface between the top surface and the bottom surface; a light reflection film arranged on a surface of at least one crystal unit in the plurality of crystal units; and a semiconductor sensor array comprising a plurality of semiconductor sensors, only part of the crystal units in the crystal array being coupled with the semiconductor sensors, the number of the crystal units in the crystal array being greater than the number of the semiconductor sensors in the semiconductor sensor array. By arranging a light splitting structure on the crystal units, the transmission distance of photons can be effectively shortened relative to arranging a light guide sheet between the crystal array and the semiconductor sensors, and thus the light transmission loss caused by the light guide sheet can be avoided, so that the resolution of the PET detector can be improved.
Owner:SHANGHAI UNITED IMAGING HEALTHCARE

Inverse design of angle sensitive metasurfaces for light field imaging

A semiconductor-based sensor to detect light angle of incidence includes a semiconductor light sensor element and a patterned spatially inhomogeneous dielectric layer disposed over the semiconductor light sensor element. Characteristically, spatial inhomogeneity of the patterned spatially inhomogeneous dielectric layer is optimized to provide a maximized electric field in the semiconductor light sensor element such that the semiconductor-based sensor is operable to detect one or more incident angles of light at a predefined wavelength or wavelengths of light.
Owner:UNIV OF SOUTHERN CALIFORNIA

In-situ infrared dynamic sensing and computing array based on ferroelectric capacitors

The present invention discloses an in-situ infrared dynamic sensing and computing integrated array based on ferroelectric capacitors, belonging to the field of semiconductor sensors. The array is composed of a plurality of pixels, each pixel is composed of a plurality of sensing and computing integrated devices, wherein the sensing and computing integrated devices at the same position in different pixels are connected in parallel by wiring, and the sensing and computing integrated devices are deep-grooved ferroelectric capacitors composed of a bottom electrode, a top electrode, and a ferroelectric dielectric material between the two electrodes on a deep-grooved insulating substrate. The ferroelectric dielectric material produces a pyroelectric charge response related to polarization intensity as the temperature changes. The present invention realizes zero-power in-situ infrared dynamic sensing, reduces system power consumption and delay overhead; and realizes weighted information perception, realizes four-quadrant multiplication of perception information and weights within a single device, and realizes complex in-sense computing functions.
Owner:PEKING UNIV

A semiconductor sensor base detection device and detection method

The present invention relates to the technical field of semiconductor sensor base detection, and discloses a semiconductor sensor base detection device and detection method. An electric telescopic rod is fixed in the middle of the bottom of the top plate, and a protective cover is fixedly installed on the output end of the electric telescopic rod. A detection piece is provided at the top of the protective cover, and stress points are evenly distributed on the bottom of the detection piece. A clamping assembly is installed on the top of the turntable, and the size of the protective cover corresponds to that of the base body. The detection piece and the base body are matched. The diameter size of the base body, whether the jack aperture has deviation, and whether the outer edge of the base body has defects or burrs can be measured by the distribution change of the stress points. The surface of the base body can be intuitively detected, errors in manual detection can be avoided, and detection accuracy can be improved. The outer edge of the mounting seat can be scraped and cleaned by multiple sets of scrapers, and the base body can be trimmed in real time.
Owner:HUIZHOU CHEUNG SHING HIGH PRECISION METAL PROD CO LTD

Two-dimensional magnetic sensitive sensor based on two-dimensional electron gas channel structure and preparation method thereof

This invention relates to a two-dimensional magnetic sensor based on a two-dimensional electron gas channel structure and its fabrication method, belonging to the field of semiconductor sensor technology. Technical solution: A buffer layer, a channel layer, and a barrier layer are sequentially grown on a substrate. The channel layer and the barrier layer form a heterojunction structure layer. A two-dimensional electron gas is induced at their interface by polarization charges. A magnetostrictive layer is placed above the barrier layer, and electrodes Sx1, Sx2, Sy1, and Sy2 are placed above the magnetostrictive layer. Electrodes Sx1, Sx2, Sy1, and Sy2 all extend from above the magnetostrictive layer to the heterojunction structure layer. Electrodes Sx1 and Sx2 are symmetrically arranged, as are electrodes Sy1 and Sy2. Beneficial effects: The two-dimensional magnetic sensor based on a two-dimensional electron gas channel structure described in this invention modulates the polarization effect of a single III-V group semiconductor heterojunction magnetic sensor. It can achieve high sensitivity when measuring magnetic fields parallel to the device direction under harsh environments, and the simple structure reduces the device size and facilitates integration.
Owner:DALIAN UNIV OF TECH

Intelligent system for real-time detection and analysis of volatile organic compounds (VOCS) contained in exhaled breath

Intelligent system for real-time detection and analysis of volatile organic compounds (VOCs) contained in exhaled breath of a patient, able to detect the imprint of the respiratory volaboloma, characterized in comprising : - a nasal electronic device (100) comprising a nasal mask (101) having at least at least one inlet opening (101a) for air and at least one outlet opening (101b) for exhaled breath; - at least one electrochemical molecule detector (102) comprising at least one semiconductor sensor able to detect volatile organic compounds, connected to the outlet opening (101b) of the nasal mask (101); - at least one processing unit able to analyze data detected by the at least one semiconductor sensor in real time and to control respiratory cycles while measuring; - an integrated artificial intelligence module, able to identify patterns in data obtained from the exhaled breath, and to correlate said patterns with suspected physiological conditions; wherein said nasal electronic device (100) comprises : - a conveyor tube (104) bent at an angle a connected to, or integrated with, the nasal mask (101) so that in correspondence with one end said conveyor tube (104) is connected to the outlet opening (101b), able to ease the passage of VOCs inside it.
Owner:BEFOREMED SRL

Packaging structure for sensors with different high and low concentrations

The utility model relates to the technical field of sensor packaging equipment, in particular to a packaging structure for sensors with different high and low concentrations. According to the technical scheme, the device comprises a packaging shell, and a semiconductor sensor and an infrared sensor which are movably installed on the packaging shell, and also comprises a dismounting assembly which is installed on the packaging shell and is used for enabling the semiconductor sensor and the infrared sensor to be dismounted at the same time; and a connecting mechanism. According to the utility model, through cooperation of the packaging housing, the dismounting assembly, the connecting mechanism, the limiting mechanism and other structures, a maintainer can selectively maintain a single sensor or all sensors according to needs, thereby not only providing greater maintenance flexibility, but also performing targeted maintenance according to actual conditions. Meanwhile, the sensor needing to be maintained can be rapidly disassembled, the maintenance time and operation steps can be reduced, the maintenance complexity and cost are further reduced, manpower and time consumption is reduced, and the sensor maintenance efficiency is improved.
Owner:BEIJING GUOXIN FUTURE INSTR CO LTD +1

Multi-channel mixed gas detection modular semiconductor sensor array

The utility model discloses a multi-channel mixed gas detection modularized semiconductor sensor array, which comprises a bottom plate, a two-way screw rod is rotatably arranged on the upper end surface of the bottom plate through a connecting frame, a rocking wheel is fixedly arranged on the outer wall of the two-way screw rod, and two moving blocks are arranged on the outer wall of the two-way screw rod through threads of a limiting mechanism. The upper end faces of the two moving blocks are fixedly provided with first connecting frames, and the interiors of the two first connecting frames are rotationally connected with second connecting frames through connecting mechanisms. According to the utility model, the prismatic rod, the clamping plates, the springs and other components are arranged, under the action of the elastic force of the springs, the clamping plates can be tightly attached to the two sides of the detection module and firmly fixed in the mounting groove, when the detection module needs to be replaced or maintained, an operator only needs to overcome the elastic force of the springs and push the clamping plates aside towards the two sides, and then the detection module can be replaced or maintained. And the operation is simple and convenient, the maintenance time of the equipment is greatly shortened, and the maintenance cost is reduced.
Owner:王中祺