291 results about "Radiation sensor" patented technology

The invention provides a network construction type photovoltaic system control method supporting active support of power grid frequency, and the method comprises the steps: (1) designing a PV system power reduction operation control strategy which is used for enabling a PV system to reserve power to participate in frequency adjustment of a power grid; (2) designing a PI-based DC bus voltage control strategy for adjusting the DC bus voltage to a reference value; (3) designing a load side step-down operation control strategy based on PI, wherein the strategy is used for stabilizing the DC bus voltage in an off-grid mode; (4) designing a VSG control strategy, and enabling the network-forming inverter to simulate a synchronous generator to participate in active frequency modulation; and (5) in a grid-connected mode, designing a pre-synchronization control strategy, and enabling the grid-forming inverter and the power grid to operate in a grid-connected manner. According to the invention, the frequency stability of the new energy high-permeability power system can be improved. In addition, the method only depends on local information, does not need a maximum power point estimator, a central controller or a solar radiation sensor, and has the advantage of low implementation cost.

A system determines the position of an elevator car movable in an elevator installation shaft. A transmitter emits modulated electromagnetic radiation with a first modulation frequency as a first output signal, a sensor cell receives electromagnetic radiation reflected by a detected object as an original measurement signal, and an evaluation unit, communicating with the transmitter and the sensor cell, delays the original measurement signal thus generating a delayed measurement signal, determines a first phase offset between the original measurement signal and the first output signal, determines a second phase offset between the delayed measurement signal and the first output signal, selects either the first phase offset or the second phase offset based upon a selection condition to determine a position of the elevator car within a portion of the elevator shaft, and determines the elevator car position based upon the elevator shaft portion and the position within the portion.

The invention discloses a dual-band infrared radiation attitude estimation method for deep learning assisted extended Kalman. The method comprises the following steps: analyzing the influence of geometric errors and random errors in dual-band infrared radiation measurement signals on attitude estimation reliability; the method comprises the following steps: constructing a CBGTE model to eliminate geometric errors and random errors in dual-band infrared radiation signals, firstly, collecting a dual-band infrared radiation signal data set by using a semi-physical simulation platform, cleaning the dual-band infrared radiation signal data set, inputting the dual-band infrared radiation signal data set into a BGT neural network for feature learning, and storing an optimal weight; and inputting data obtained by the dual-band infrared radiation sensor into the BGT neural network with the optimal weight to obtain infrared radiation data after compensation of random errors, and inputting the data after filtering of the random errors into an extended Kalman algorithm to filter geometric errors to obtain reliable attitude angle information. The invention provides a high-precision and robust attitude information acquisition and processing method for a spinning unmanned aerial vehicle taking infrared radiation as an attitude measurement method.

Disclosed are a radiation protection robot and a scattered inspection apparatus. The radiation protection robot includes: a first wheel capable of allowing the radiation protection robot to move; a shielding device capable of reflecting and / or absorbing radiation; and a radiation sensor for sensing radiation. The radiation protection robot is configured to move through the first wheel towards an area where the radiation dose value sensed by the radiation sensor is increased, and shield the propagation of radiation through the shielding device.

Method for measuring the orientation of the emission direction of radar sensors in a motor vehicle. The motor vehicle is located in a vehicle test stand (301) for the purpose of conducting a test bench run. The vehicle is designed such that the radar sensor emits radar beams and, during the operation of the motor vehicle, receives radar beams reflected from objects in the vicinity of the motor vehicle. For the execution of the method, the position and orientation of the motor vehicle are defined in a coordinate system of the vehicle test stand (301). According to the present invention, the position and orientation of at least one measuring surface (303) are defined in the coordinate system of the vehicle test stand (301). The measuring surface (303) is divided into several measuring points, which are horizontally and vertically spaced apart from one another.A sensor unit is provided for measuring the intensity of the radar beams emitted by the vehicle sensor at one or more measurement points on the measuring surface (303). If the sensor unit does not measure the intensity of the radar beams at all measurement points on the measuring surface (303) at a single time, its position (Y, Z) on the vehicle test bench (301) can be changed so that the intensity of the radar beams is measured at multiple points on the measuring surface (303). By comparing the measured intensities at the measurement points on the measuring surface (303) and evaluating symmetries in the measured intensities at the individual measurement points on the measuring surface (303), the intersection point of the radiation direction of the radar sensor of the vehicle on the test bench with the measuring surface (303) is determined.

Disclosed in the present invention are a sunshade system with independently adjustable thermal insulation and shading performance and a control method therefor. The sunshade system with independently adjustable thermal insulation and shading performance mainly consists of a glazing system, a window frame, a sunshade mechanism, and a monitoring mechanism. A solar radiation sensor and an outdoor air temperature sensor in the monitoring mechanism are used to collect outdoor solar radiation data and air temperature data in real time, and the data is transmitted to a central processing unit; and on the basis of a sun-shading area ratio prediction model and according to measured values from the solar radiation sensor and the temperature sensor, the central processing unit extracts geometric parameters of an external window to determine the unfolding degree of a roll film. The present disclosure guarantees year-round thermal environment and day lighting effect in the interior of a building, and reduces the air conditioning and heating energy consumption of the building.

The invention provides a large-scale natural gas hydrogen-doped gas leakage and jet fire testing device and method. A large-scale natural gas hydrogen-doped gas leakage and jet fire testing device comprises a hydrogen gas cylinder, a pressure sensor, a temperature sensor, a sheathed thermocouple, an electric ignition device, a leakage device, a natural gas tank car, a vacuum pump, a pipeline, an infrared camera, a computer, a data acquisition instrument, a gas concentration sensor and a thermal radiation sensor. The hydrogen cylinder, the pressure sensor, the temperature sensor, the leakage device, the natural gas tank car and the vacuum pump are all connected with the pipeline, and the sheathed thermocouple, the electric ignition device, the infrared camera, the gas concentration sensor and the thermal radiation sensor are all adjacent to the leakage device. The data acquisition instrument is respectively connected with the pressure sensor, the temperature sensor, the sheathed thermocouple, the gas concentration sensor and the thermal radiation sensor, and the infrared camera and the data acquisition instrument are both connected with the computer.

The utility model provides a pipe cutting tool, and relates to the technical field of pipe cutting. And the pipe conveying assembly is fixedly connected to the top of the bottom plate, the pipe conveying assembly comprises a first support and a second support, and a plurality of first conveying rollers are rotationally connected to the inner surface of the first support at equal intervals. According to the pipe cutting device, when a pipe is cut, the two second conveying rollers can be driven to operate by starting the first motor, the pipe can be driven to move in the direction of the sliding frame through operation of the second conveying rollers, and feeding is achieved; the purpose of automatically conveying the pipe to the preset cutting position can be achieved, fixed-length cutting of the pipe is completed through cooperative starting of the first electric push rod, the cutting machine and the second electric push rod, the automation degree of the device is effectively improved, and then the machining efficiency is improved.

A radiation dose detection device includes: a power supply circuit that outputs a power supply voltage; a temperature sensor unit that functions as a first current source that outputs a first current dependent on the ambient temperature, using the power supply voltage; a radiation sensor unit that functions as a second current source that outputs a second current dependent on the dose of radiation to the radiation dose detection device, using the power supply voltage; and a detection circuit that outputs a first signal indicating the temperature corresponding to the magnitude of the first current, and a second signal indicating the dose of radiation corresponding to the magnitude of the second current. The temperature sensor unit includes one or more resistance change elements each including a variable resistance layer containing a transition metal oxide. The second current source includes a transistor.

The invention provides a solar photovoltaic power generation and electrocatalytic carbon dioxide reduction reaction dynamic coupling system and method. Solar energy is converted into electric energy through the photovoltaic panel to provide electric energy for electrocatalytic carbon dioxide reduction reaction, the solar radiation intensity and the working temperature of the surface of the photovoltaic panel are collected through the solar radiation sensor and the temperature sensor respectively, and the coupling controller is used for controlling connection and disconnection of the flowing electrolytic tank according to the solar radiation intensity and the working temperature. And the flowing electrolytic tank is subjected to electrochemical carbon dioxide reduction reaction in a preset current density range, so that the electrode drowning phenomenon is avoided, and stable synthesis of ethylene under variable environment working conditions is realized.

To provide a radiation dosimetry method that can obtain a measurement value high in reproducibility of a surface dose or air dose within a measurement object area, while suppressing radiation exposure of a measurement worker.SOLUTION: A radiation dosimetry method comprises: a dose measurement step in which a robot 1 loading a radiation sensor 3a moves within a measurement object area A, and adjusts a height from a ground surface G of the radiation sensor 3a, and a radiation dose at a measurement point P within the measurement object area A is measured by the radiation sensor 3a; a sensor position information acquisition step in which sensor position information on a three-dimensional position of the radiation sensor 3a is acquired that includes information on a height from the ground surface of the radiation sensor 3a at a time of measuring the radiation dose in the dose measurement step; and a measurement value recording step in which information on the measurement value of the radiation dose obtained in the dose measurement step is recorded in association with the sensor position information obtained in the sensor position information acquisition step.SELECTED DRAWING: Figure 1

The invention relates to the technical field of nuclear radiation monitoring, in particular to an intelligent analysis system for nuclear radiation data, which comprises an acquisition planning module, a radiation intensity monitoring module, a sensor adjusting module, a radiation source positioning module and a radiation data processing module. According to the invention, the sensitivity and sampling frequency of the nuclear radiation sensor are intelligently adjusted by combining factors such as water flow velocity and temperature so as to cope with different environmental conditions and ensure the stability and accuracy of radiation data, and high-quality radiation monitoring data can be provided in a complex marine environment. Strong support is provided for accurate evaluation of a nuclear radiation source and analysis of the radiation quantity of marine products, the limitation of a traditional static monitoring technology is effectively overcome through real-time cooperation of the sensor and the unmanned ship, the response speed and precision of data acquisition are improved through continuous tracking and optimization of sensor configuration, nuclear pollution events can be rapidly coped with, and the real-time performance of the system is improved. And the radiation source position is updated in real time.

The present disclosure describes a radiation sensing and reporting devices, systems, and methods. The devices and systems are a flexible material that detects the presence of radiation over a surface area and reports the specific location and intensity of the radiation. An article is provided that includes a substrate; a plurality of radiation sensors, each radiation sensor of the plurality of radiation sensors being disposed at a corresponding position on the substrate; and alert circuitry coupled to the plurality of radiation sensors, wherein the alert circuitry indicates, in real time, a localized detection of radiation according to corresponding one or more positions on the substrate of a particular one or more radiation sensors of the plurality of radiation sensors.

The invention belongs to the technical field of fire early warning and fire extinguishing, and particularly relates to an early warning and fire extinguishing system and method for an electric vehicle in an underground garage, and the system comprises a buried fire monitoring and fire extinguishing system which is buried below a parking space; the fire extinguishing system control host is electrically connected with the buried fire monitoring and fire extinguishing system; the infrared correlation sensor is electrically connected with the fire extinguishing system control host, and the infrared correlation sensor is used for detecting the position of a vehicle; the alarm is electrically connected with the fire extinguishing system control host; the buried fire monitoring and fire extinguishing system is used for identifying a vehicle fire and extinguishing fire, and the host is controlled by the fire extinguishing system to enable the alarm to give an alarm; the buried fire monitoring and extinguishing system comprises a temperature detection module used for detecting the temperature of a battery at the bottom of a vehicle; the gas monitoring device is used for collecting and detecting air at a battery at the bottom of the vehicle, and the gas monitoring device is used for detecting and identifying gas concentration; the fire extinguishing part is used for spraying a fire extinguishing agent when the vehicle is on fire.

A radiation shield assembly includes a radioembolization delivery device and a radiation shield. The radioembolization delivery device includes a radiation sensor, a vial assembly, a radioembolization administration set containing the vial assembly, and delivery line tubing in fluid communication with and disposed distally below the radioembolization administration set. The radiation shield includes a solid portion configured to block radiation. The solid portion includes an interior facing wall that defines an aperture. The solid portion and aperture of the radiation shield are sized such that, radiation emanating at a first angle from the radioembolization administration set and vial assembly passes through the aperture to the radiation sensor, and radiation emanating from a second angle from the delivery line tubing, the second angle distally below the first angle, is blocked by the solid portion of the radiation shield and does not pass through the aperture to the radiation sensor.

The present disclosure includes apparatuses, methods, and systems for a radiation sensor suite. In an example, a method can include calibrating a plurality of sensors of a sensor suite located on a non-volatile memory die and monitoring for a plurality of radiation events at each one of the plurality of sensors. In response to none of the plurality of sensors detecting a radiation event, the method can include the sensor suite continuing to monitor for the plurality of radiation events. In response to at least one of the plurality of radiation sensors detecting a radiation event, the method can include notifying a host of the radiation event and identifying a NAND flash memory array region affected and correcting the radiation event based on the radiation event and the NAND flash memory array region affected.

A radiation detector unit including an interposer configured to electrically connect a pixelated radiation sensor positioned on a front side of the interposer to an application-specific integrated circuit (ASIC) positioned on a back side of the interposer, where the interposer has at least one feature which equalizes the energy resolution (ER) response of edge and center pixel detectors of the pixelated radiation sensor within 10% of one another.

The embodiment of the invention discloses an electromagnetic range and a temperature determination method, relates to the technical field of electromagnetic ranges, and is used for improving the accuracy of cookware temperature detection of the electromagnetic range. An electromagnetic disk is arranged in the stove base, and the electromagnetic disk is used for heating cookware; a heating panel is arranged on the electromagnetic disk, and the heating panel is used for isolating the cookware from the electromagnetic disk; the first radiation sensor is used for detecting the cookware and the heating panel to obtain a first radiation quantity; wherein the cookware and the heating panel are both located on a radiation path of the first radiation sensor; the second radiation sensor is used for detecting a second radiation quantity of the heating panel; a controller configured to: acquire a first radiation amount detected by the first radiation sensor and a second radiation amount detected by the second radiation sensor; and determining the pot bottom temperature of the pot according to the first radiation quantity and the second radiation quantity.

The invention relates to the technical field of nuclear facility decommissioning robots, and discloses a nuclear decommissioning robot based on laser cutting technology teleoperation, which comprises a supporting seat, a mechanical arm assembly, a visual sensor and a laser cutting head. A crawler belt is arranged at the bottom of the supporting base and used for moving and positioning the robot. The mechanical arm assembly comprises a main arm, a supporting arm, a short arm and an end effector, and precise operation is achieved through cooperation of a multi-stage motor and an air cylinder. The visual sensor comprises a radiation sensor, a force feedback sensor and a temperature sensor and is used for monitoring environmental parameters and operation states in real time. The laser cutting head is provided with a focus lens, a cooling system and an energy regulator, and heat dissipation is achieved through a cooling liquid circulating pipe. The control system comprises a wireless communication module, a control unit, an image processing unit and a camera, and remote operation and real-time monitoring are achieved. According to the invention, the safety, flexibility and efficiency of nuclear decommissioning work are improved.

A system and method for the measurement of radiation emitted from the body, for example, is presented. In one example, radiation sensors (e.g., gamma radiation sensors) may be used to measure activity proximate an injection site as a function of time. In some embodiments, one or more rangefinders may be employed to determine a size and / or position of a subject relative to the radiation sensors to better account for varying material densities within the system in estimating, for example, the amount of radioactive material in the tissue proximate the injection site. With an estimated function of radioactive material proximate the injection site as a function of time known, an estimated arterial input function may be determined, allowing for calculation of a correction factor that may be applied by a clinician during nuclear medical imaging. The magnitude, location, and volume of the radioactive source in the body may also be estimated.

The utility model relates to vacuum coating equipment technical field, concretely relates to a kind of alignment adjusting device for alignment of vacuum coating equipment to sensor, and the observation window seat of fixed position setting is equipped with mounting seat on the back of observation window seat, transmitter is fixedly arranged on one of mounting seat, receiver is fixedly arranged on another mounting seat, adjusting screw is respectively equipped in four corners on mounting seat, elastic member is connected between mounting seat and observation window seat, for increasing a reverse pre-tightening force between mounting seat and observation window seat, so that mounting seat remains stable, when actually using, rotating adjusting screw in four corners is used to adjust the distance between four corners of mounting seat and observation window seat, in the adjustment process, transmitter will follow the process of loosening and tightening of adjusting screw, and the position moving process of the light spot projected on the side of receiver is observed by operator through the window body at transmitter side, until receiver detects light source, that is, alignment is completed, and it is convenient to operate.

This invention discloses a method, system, equipment, and medium for testing the pressure relief effect of large-diameter boreholes. The method involves scientifically arranging borehole electromagnetic radiation sensors to collect electromagnetic radiation signals at different vertical distances before and after pressure relief, and scientifically arranging vector electromagnetic radiation sensors to collect electromagnetic radiation signals at different horizontal distances. Based on these electromagnetic radiation signals, a comprehensive evaluation index is established to evaluate the pressure relief effect along the vertical direction and along the coal wall direction, respectively. This invention enables quantitative evaluation of the pressure relief effect of large-diameter boreholes, improving the reliability and accuracy of pressure relief effect testing.

A power management system for a dispenser that includes a passive infrared radiation sensor arranged along the dispenser and configured to detect infrared radiation emitted by one or more users within a prescribed detection range, area, or zone of the dispenser. When the passive infrared radiation sensor does not capture infrared radiation within the prescribed detection range, area, or zone, the dispenser is placed in a low power state with the passive infrared sensor remaining connected to a power source and a controller, a dispensing mechanism, and / or the proximity sensor being disconnected from the power source. Other aspects also are described.

The utility model discloses a radiation protection robot and back scattering inspection equipment. The radiation protection robot includes: a first wheel disposed at a bottom of the radiation protection robot to allow the radiation protection robot to move; a shielding device capable of reflecting and / or absorbing radiation; and a plurality of radiation sensors for sensing radiation. A plurality of radiation sensors are mounted in a plurality of orientations on an outer periphery of a radiation protection robot so as to be able to receive radiation irradiated toward the radiation protection robot from any direction around the radiation protection robot. The radiation protection robot is configured to move through self-driving of the first vehicle, so that the radiation protection robot moves towards an area where the radiation dose value sensed by the radiation sensor is increased, and radiation propagation is shielded through the shielding device.

The application relates to a broken line detection device and textile processing equipment, which comprises a fixing base, a swing frame, a first infrared opposite radiation sensor, a second infrared opposite radiation sensor and a first controller; the swing frame comprises a rotating shaft, a connecting rod and a counterweight rod, the rotating shaft is rotationally connected with the fixing base, the counterweight rod is in an L shape, the lower ends of the counterweight rod and the connecting rod are fixed on the rotating shaft, the upper end of the connecting rod is provided with a first guide roller parallel to the rotating shaft, and the upper end of the counterweight rod is provided with a second guide roller parallel to the rotating shaft; the first infrared opposite radiation sensor is used for detecting the position of yarn in a horizontal state, and the second infrared opposite radiation sensor is used for detecting the position of yarn in a slanting and slack state. The application can improve the timeliness of broken line detection.

Embodiments of the present disclosure relate to methods, systems, and apparatus for monitoring the radiant output of lamps in a processing chamber. In some embodiments, the system includes a plurality of lamps coupled to a chamber and one or more radiation sensors. Each lamp is associated with one or more zones, the radiation sensors are coupled to the chamber, and each radiation sensor is adjacent to at least one lamp. The controller includes commands to cause the radiation sensors to transmit information to the controller relating to the radiation emitted by the lamps, which, when executed, includes analyzing the information, which includes determining a function of radiation over time for each zone and monitoring a function of the lamps relating to their aging, and to cause the controller to perform at least one of the following based on the analysis of the information: changing the input power delivered to the lamps and generating a warning.

A bonding detector system comprising a radiation sensor, one or more processors, instructions, or other components is described. The system comprises a radiation sensor configured to generate a signal based on a pattern of diffracted radiation received from a diffraction based alignment mark of a semiconductor die. The instructions cause the one or more processors to determine a position of the diffraction based alignment mark based on the signal; and generate, based on the position, a signal configured to cause alignment of the semiconductor die to a bonding location.

The present invention relates to a vehicle interior temperature sensor, and more particularly, to a vehicle interior temperature sensor which smoothly discharges wet foreign matter flowing into a sensor housing from the outside through a cutting portion of the sensor housing, and increases an air contact area of a terminal sensor unit, thereby improving the reliability of a vehicle interior temperature sensor. Therefore, the sensitivity of temperature sensing can be improved. To this end, the present invention comprises: a PCB substrate; a tip sensor unit connected to a front side of the PCB substrate and including a first temperature sensor for detecting a temperature of an outer surface of one side of the tip case and a solar radiation sensor for sensing an amount of solar radiation incident on the outer surface of one side of the tip case; and a sensor housing that accommodates at least a part of the tip sensor unit and at least a part of the PCB substrate so as to prevent foreign matter from flowing into the PCB substrate from the outside, in which a lower side of a top portion of the sensor housing has a cutting portion that enables foreign matter flowing between the tip housing and the sensor housing to be discharged at the lower side, and the air contact area of the tail end sensor unit is increased.

A charge-sensitive amplifier configured to receive an input charge signal from a radiation sensor includes a high-open-loop- voltage gain amplification stage including at least one of an operational amplifier and / or operational transconductance amplifier, a capacitive network electrically coupled between an input and an output of the high-open-loop- voltage gain amplification stage, and an active feedback circuit network electrically coupled between the input and the output of the high-open-loop-voltage gain amplification stage. The capacitive network provides integration of the input charge signal and conversion of the input charge signal to a voltage available at an output of the charge-sensitive amplifier.

The invention belongs to the technical field of semiconductor equipment, and particularly relates to a wafer mapping mechanism for detecting the placement state of wafers in a wafer cassette, which comprises two groups of correlation sensor assemblies, and each group of correlation sensor assembly comprises a transmitting end structure and a receiving end structure, the transmitting end structures of the two sets of correlation sensor assemblies are installed on the lifting cavity door, and the receiving end structures of the two sets of correlation sensor assemblies are installed on the inner side face of the side wall, away from the lifting cavity door, of the lifting equipment cavity. Projections of light rays emitted by the transmitting end structures of the two groups of correlation sensor assemblies on a vertical plane intersect but are not parallel. Through cooperative arrangement of the two groups of correlation sensor assemblies, two groups of detection data can be adopted for comparison, and comprehensive logic judgment is performed, so that the scanning time can be effectively shortened, the defect that wafer crossing or lamination is possibly misreported when the wafer box is inclined is effectively avoided, the accuracy and efficiency of an identification result are improved, the mounting structure is relatively simple, and the practicability is high. Adjustment and maintenance are convenient.