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42 results about "Plate detector" patented technology

In electronics, a plate detector (anode bend detector, grid bias detector) is a vacuum tube circuit in which an amplifying tube having a control grid is operated in a non-linear region of its grid voltage versus plate current transfer characteristic near plate current cutoff in order to demodulate an amplitude modulated carrier signal. This differs from the grid leak detector, which utilizes non-linearity of the grid voltage versus grid current characteristic for demodulation. It also differs from the diode detector, which is a two terminal device.

Radiographic image detector

A flat panel detector (FPD) includes an imaging panel having pixels arranged in a matrix, a gate driver for turning thin film transistors (TFTs) of the pixels ON and OFF, a radiation detecting section for detecting the start of x-ray radiation from the x-ray source, and a controller. The controller controls the gate driver to turn the TFTs ON periodically to reset dark charges of the pixels. Before starting a charge accumulating operation for accumulating signal charges for imaging, the controller controls the gate driver to turn the TFTs OFF so that the radiation detecting section may detect the start of x-ray radiation on the basis of charge leaks from the pixels. When the start of x-ray radiation is detected, the controller starts the charge accumulating operation while keeping the TFTs in the OFF condition. Thereafter, the TFTs are turned ON to read out the accumulated signal charges.
Owner:FUJIFILM CORP

Method of manufacturing flat panel detector

Disclosed is a method of manufacturing a flat panel detector such that the surface on the sale of a fluorescent body layer of a scintillator panel which has the fluorescent body layer comprising a column crystal on the supporting body, is coupled to the planar light receiving element surface of a light-receiving element, comprising: a step of manufacturing the scintillator panel which has a larger area than that of the planar light receiving element surface; a step of trimming the edges of the scintillator panel, obtained by the step of manufacturing the scintillator panel, to correspond to the area of the planar light receiving element surface; and a step of coupling the edge-trimmed scintillator panel to the planar light receiving element surface, thus providing a flat panel detector which has an excellent productivity and that can be made small in size without non-image area.
Owner:KONICA MINOLTA MEDICAL & GRAPHICS INC

Movable photoelectric separation robot for coal and gangue

The invention belongs to the technical field of coal separation, and particularly relates to a movable photoelectric separation robot for coal and gangue. The robot comprises a vibration feeding module, a conveying module, a dual-energy X-ray identification and decision module and a coal and gangue separation module; a dual-energy X-ray source is fixedly installed in an installation box and is located above a conveying belt; an X-ray flat panel detector is installed under an empty belt of the conveying module and is right corresponding to the dual-energy X-ray source; a measurement and controlinstrument is in electric signal connection with the dual-energy X-ray source; a power supply device is used for supplying power to the measurement and control instrument, the dual-energy X-ray source and the X-ray flat panel detector. The intelligent and efficient coal and gangue separation equipment based on dual-energy X-ray transmission coal separation can achieve real-time and intelligent separation of coal and gangue underground, and compared with an underground jigger, a dense medium cyclone and the like, the equipment has the advantages that the coal separation technology is optimized, the coal and gangue separation rate is increased, the occupied area of a chamber is reduced, and the coal quality is improved.
Owner:ANHUI UNIV OF SCI & TECH

Ionic migration spectrometry-flight time mass spectrometer

The invention relates to a mass spectrometry instrument, in particular to an ionic migration spectrometry-flight time mass spectrometer, and the mass spectrometer comprises an ionic migration spectrometry cavity, a mass spectrometry transmission area cavity, a mass analyzer cavity and a data acquisition card; an ionization source, an ion gate and an ion migration region electrode are sequentiallyarranged in the ionic migration spectrometry cavity from top to bottom; a repulsion polar plate, a flight time mass analyzer and a micro-channel plate detector are arranged in the mass analyzer cavity; pulse voltages Ugate, Upulse and Ucard are respectively applied to acquisition trigger terminals of the ion gate, the repulsion polar plate and the acquisition card; and the pulse voltage Upse and the pulse voltage Ucard are synchronized based on the rising edge or falling edge moment of the pulse signal of the pulse voltage Ugate. The ionic migration spectrometry-flight time mass spectrometer can effectively improve the utilization efficiency of ions, the two-dimensional analysis speed of ionic migration spectrometry-mass spectrometry and the detection sensitivity by synchronizing and modulating the pulse time sequences of the ion gate, the repulsion polar plate and the acquisition card.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Radiographic image detector

A flat panel detector (FPD) includes an imaging panel having pixels arranged in a matrix, a gate driver for turning thin film transistors (TFTs) of the pixels ON and OFF, a radiation detecting section for detecting the start of x-ray radiation from the x-ray source, and a controller. The controller controls the gate driver to turn the TFTs ON periodically to reset dark charges of the pixels. Before starting a charge accumulating operation for accumulating signal charges for imaging, the controller controls the gate driver to turn the TFTs OFF so that the radiation detecting section may detect the start of x-ray radiation on the basis of charge leaks from the pixels. When the start of x-ray radiation is detected, the controller starts the charge accumulating operation while keeping the TFTs in the OFF condition. Thereafter, the TFTs are turned ON to read out the accumulated signal charges.
Owner:FUJIFILM CORP

Ion mass screening device in flight time mass spectrometry

The invention relates to a mass spectrometry instrument, in particular to an ion mass screening device in flight time mass spectrometry, and the device comprises a mass analyzer; the mass analyzer comprises a vacuum cavity, a field-free flying area located in the vacuum cavity, a grid electrode, a micro-channel plate and a Faraday disk; an ion mass screening electrode is arranged in an area between the two metal grid meshes of the grid mesh electrode; pulse voltages U1 and U2 which are opposite in polarity, identical in pulse width and synchronous in time sequence are applied to all the adjacent plate-type structure electrodes of the ion mass screening electrode respectively. According to the invention, the ion mass reaching the micro-channel plate ion detector can be selectively filtered;the interference of high-strength ion background ions and reaction reagent ions on the micro-channel plate detector is eliminated, the dynamic range of an instrument can be effectively enlarged, thedetection sensitivity is improved, and the service life of the micro-channel plate ion detector can be greatly prolonged.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Radiation detector for use as an image intensifier

A flat panel detector is provided having a circular active area. The flat panel detector is built using complementary metal-oxide-semiconductor (CMOS) tiles. In one implementation, the flat panel detector having a circular active area can be used as a replacement for a conventional image intensifier, including an image intensifier used in a fluoroscopy system.
Owner:GENERAL ELECTRIC CO

Connector

The invention provides a connector assembly, which belongs to the technical field of low-voltage electrical equipment and comprises a shell, a copper bar and a contact, the copper bar and the contact are arranged in the shell, the connector assembly is used for communicating a loop between a power distribution drawer cabinet and a main bus, and the connector assembly further comprises a detection device and acircuit board, the detection device is arranged in a cavity in the shell and corresponds to the copper bar, the detection device is suitable for monitoring any one or more of a temperature signal, current and voltage of the copper bar, and the circuit board is arranged outside the shell and is electrically connected with the detection device. According to the connector provided by the invention, the detection device and the circuit board are arranged in the shell, the detection device is electrically connected with the circuit board, and the detection device can monitor any one or more of a temperature signal, current and voltage of the copper bar in the connector; and a monitored signal is processed by a chip on the circuit board and then converted into a digital signal to be transmitted to the display panel, so that the running state of the plug-in is displayed in real time, and when the plug-in breaks down, early warning can be conducted in time.
Owner:WENZHOU DEYUAN ELECTRIC

Instrument for assaying radiation

An instrument for assaying radiation includes a flat panel detector having a first side opposed to a second side. A collimated aperture covers at least a portion of the first side of the flat panel detector. At least one of a display screen or a radiation shield may cover at least a portion of the second side of the flat panel detector.
Owner:SAVANNAH RIVER NUCLEAR SOLUTIONS

Invisible light flat plate detector and manufacturing method thereof, imaging apparatus

The present invention provides an invisible light flat plate detector and a manufacturing method thereof, an imaging apparatus, relates to the field of detection technology, can solve problems that the structure of the invisible light flat plate detector in the prior art is complex and the manufacturing method thereof is tedious. The invisible light flat plate detector of the present invention comprises a plurality of detection units and an invisible light conversion layer provided above the detection units for converting invisible light into visible light, each of the detection units comprising a thin film transistor provided on a substrate, and a first insulation layer, a first electrode, a semiconductor photoelectronic conversion module, a second electrode which are successively provided above the thin film transistor and of which projections on the substrate at least partially overlap with a projection of the thin film transistor on the substrate.
Owner:BOE TECH GRP CO LTD

Calibration method for elimination time of ion fan

The invention discloses a calibration method for elimination time of an ion fan. The calibration method comprises steps of calibrating elimination time of an ion fan by a standard charging plate detector, charging positive and negative charges on a plate capacitor through a high-voltage generator to obtain static elimination time; and then calibrating ion balance including recording calibration results and determining re-calibration intervals. According to the calibration method for elimination time of the ion fan provided by the invention, by arrangement of the ion fan, a work plane and capacitor plates, the plate capacitor is charged with the positive and negative charges by the high-voltage generator, and the ion balance is calibrated to uniformly regulate the static elimination time ofthe ion fan, thereby reducing error of the static elimination time, improving measurement accuracy of the ion fan, and making the calibration method suitable for first calibration, subsequent calibration and in-use inspection of the ion fan neutralizing static charges in the air.
Owner:广东省世通仪器检测服务有限公司

Semi-finished product production line suitable for float electronic display glass

The invention discloses a semi-finished product production line suitable for float electronic display glass. The semi-finished product production line comprises an annealing kiln, a first broken platedetector is arranged at the downstream position in the pulling direction of the annealing kiln, an emergency transverse cutting machine is arranged at the downstream position in the pulling directionof the first broken plate detector, a breaking roller is arranged at the downstream position in the pulling direction of the emergency transverse cutting machine, and an emergency falling plate is arranged at the downstream position in the pulling direction of the breaking roller; according to the invention, the stress of the glass substrate can be detected online; glass scratches can be reduced;the online detection precision of the appearance size of the glass can be improved; the breakage rate of subsequent production, processing, packaging, transportation and client sheet taking caused byglass microcracks can be reduced; the glass sampling difficulty can be reduced, and the sampling safety is improved; the semi-finished product packaging device can be in seamless butt joint with a post-processing line while realizing semi-finished product packaging so that continuous production of glass from semi-finished products to finished products is realized, and the production efficiency isimproved.
Owner:BENGBU CHINA OPTOELECTRONIC TECH CO LTD

An ion mobility spectrometer-time-of-flight mass spectrometer

The invention relates to a mass spectrometry instrument, in particular to an ionic migration spectrometry-flight time mass spectrometer, and the mass spectrometer comprises an ionic migration spectrometry cavity, a mass spectrometry transmission area cavity, a mass analyzer cavity and a data acquisition card; an ionization source, an ion gate and an ion migration region electrode are sequentiallyarranged in the ionic migration spectrometry cavity from top to bottom; a repulsion polar plate, a flight time mass analyzer and a micro-channel plate detector are arranged in the mass analyzer cavity; pulse voltages Ugate, Upulse and Ucard are respectively applied to acquisition trigger terminals of the ion gate, the repulsion polar plate and the acquisition card; and the pulse voltage Upse and the pulse voltage Ucard are synchronized based on the rising edge or falling edge moment of the pulse signal of the pulse voltage Ugate. The ionic migration spectrometry-flight time mass spectrometer can effectively improve the utilization efficiency of ions, the two-dimensional analysis speed of ionic migration spectrometry-mass spectrometry and the detection sensitivity by synchronizing and modulating the pulse time sequences of the ion gate, the repulsion polar plate and the acquisition card.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Flat panel detector structure and its preparation method

The invention provides a flat panel detector structure and a preparing method thereof. The preparing method comprises the steps of providing a substrate and preparing a lower electrode layer on the substrate; providing a radiation absorbing material liquid, wherein the radiation absorbing material liquid comprises a lead-containing compound liquid; and coating the radiation absorbing material liquid on a lower electrode layer to prepare a light-converting layer on the lower electrode layer based on the coated radiation absorbing material liquid; and preparing an upper electrode layer on the light-converting layer. The structure and method of the invention improve the materials of the existing light-converting layer, improve the radiation absorption capability of the light-converting layer,reduce the thickness of the light-converting layer, design the forming method of the light-converting layer and solve the problem in forming a polycrystalline structure. Furthermore, the chemical composition and phase uniformity of the device are improved; the uniformity of the image is raised; the effective utilization of raw materials is raised; the process equipment is simplified; the structure of the detector is designed; the problem of leakage current is mitigated; the noise of detector is reduced; the sensitivity and the contrast ratio are raised; the electrode materials of the detectorare improved; and the cost is reduced.
Owner:IRAY IMAGE TECH TAICANG CO LTD

Systems and methods for improved contraband detection

A system for multi-stage differential mobility spectrometer (multi-stage DMS) and the method of operating and using the same are described. Ions produced in an ionization source are introduced into the separation region of multi-stage DMS, which includes at least two DMS stages. Each DMS stage is configured to generate separation and compensation fields to characterize, separate, or select ion species. The separation region further includes ion alteration stages which are placed between various adjacent stages of multi-stage DMS. Alteration of ions can be both chemical and physical. Ions whichare separated, altered, and selectively passed by all DMS stages of multi-stage DMS are then measured or further characterized by the Faraday plate detectors or a mass spectrometer.
Owner:RAPISCAN SYST INC (US)

Method for detecting position offset of flat panel detector and radiotherapy device

The invention discloses a flat panel detector position offset detection tool, a method and a radiotherapy device. The detection tool includes: a base plate and a column, the base plate is used to be fixed on the flat panel detector, and a plurality of Columns, and multiple columns are evenly distributed on the test surface. The present invention can detect the position offset of the flat panel detector relative to the radiation source when the radiotherapy device frame is at different angles without resorting to high-precision measuring tools, quickly obtain the position offset of the flat panel detector, and the detection tooling structure is simple , easy to install, simple steps in the detection method, and easy to operate.
Owner:SUZHOU LINATECH MEDICAL SCI & TECH CO LTD

Device and method for non-destructive measurement of three-dimensional traits of rice plants and roots

The invention relates to a device and method suitable for agricultural scientific research workers who can simultaneously acquire three-dimensional morphological parameters of rice plants and rice root systems for non-destructive measurement in rice cultivation and genetic breeding research. The CT detection device of the present invention is mainly composed of 7 functional modules: a ray source, a flat panel detector, a load rotating table, a lifting module, a roller conveying line, a precision motion controller and a computer system; the present invention adopts the roller conveying line to The sample to be tested is transported from the planting area to the detection area, and the automatic positioning and rotation of the potted crops and the automatic lifting of the ray source flat-panel detector are realized through the precision motion controller, so as to obtain the visible light images of the aboveground plants and the underground root system at different angles and heights. The X-ray tomographic image is then used to obtain the 3D reconstruction data of the rice plant and root system through the motion restoration algorithm SFM and the cone beam FDK algorithm, and then the 3D model data of the whole rice plant is obtained through the fusion algorithm, and the traits are analyzed.
Owner:HUAZHONG AGRI UNIV

Factory detection device for electronic component production

PendingCN113909130AImplement detection and classificationSortingSlide plateElectronic component
The invention relates to a factory detection device for electronic component production, which comprises a base and supporting plates which are fixedly disposed on the base and are symmetrically arranged, wherein the supporting plates are fixedly provided with sliding plates which are disposed in an inclined manner, limiting plates used for limiting the positions of electronic components are arranged on the sliding plates and the supporting plates; detectors which are fixedly mounted on the sliding plates, are symmetrically arranged and are used for detecting the electronic components arranged on the sliding plates; a fixed rod which is movably arranged on the base and is matched with the sliding plates; conveying assemblies which are movably arranged on the supporting plates and are matched with the sliding plates; reciprocating mechanisms which are connected with the fixed rod; diving mechanisms which are connected with the conveying assemblies and the reciprocating mechanisms; and a classification mechanism which is movably arranged on the base and is matched with the sliding plates.
Owner:怀化海红盛电子科技有限公司

A portable electromagnetic radiation warning device

ActiveCN113477624BAvoid the problem of decreased monitoring accuracyReduce time for impact monitoringAlarmsCleaning processes and apparatusEngineeringElectromagnetic radiation
The invention discloses a portable electromagnetic radiation warning device, which comprises a fixed plate, a connecting plate and a detector, the bottom surface of the fixing plate is welded and connected with the top surface of the connecting plate, the top surface of the detector is embedded and connected with the bottom surface of the connecting plate, and the detector includes The back cover, the heat dissipation block, the alarm, the irradiation board, and the input block, the heat dissipation block is embedded in the left side of the back cover, the alarm is embedded in the bottom surface of the back cover, the top surface of the irradiation board is embedded and connected with the inner layer of the back cover, and the present invention uses electromagnetic radiation It enters the detector and is received by the irradiating panel to monitor the amount of external electromagnetic radiation, and promptly warns through the alarm when the radiation amount is too high. The internal pressure of the outer plug quickly pushes outward, and then knocks down the accumulated snow layer on the outer layer, so as to avoid the problem that the radiation is reflected by a large amount and it is difficult to enter due to the accumulation of snow layer, which will cause the problem of decreased monitoring accuracy.
Owner:ZHEJIANG TIANCHAUNG XINCE COMM TECH

Readout and processing arrangement in a sensor system

A sensor system includes a detector substrate, multiple readout substrates and a processing substrate. The detector substrate has a detector mounted thereon. Each of the readout substrates is disposed perpendicular to the detector substrate, and has corresponding readout circuitry mounted thereon. The processing substrate is disposed perpendicular to each of the readout substrates and parallel to the detector substrate, and has one or more processing elements mounted thereon. Electrical connections between component nodes on the detector substrate and corresponding readout substrates are made using connectors or right-angled solder joints created using a solder reflow process. Electrical connections between component nodes on the processing substrate and corresponding readout substrates are also made using connectors or right-angled solder joints created using a solder reflow process. The geometric arrangement of the substrates allows for high density of pixelation on the detector. In an embodiment, the sensor system is a radiation detector system.
Owner:JUNNARKAR SACHIN S

CBCT acquisition device and acquisition method for animals with different body types

PendingCN112842373AScanned images are rich in informationGive full play to the detection accuracyComputerised tomographsTomographyFlat panel detectorElectric machine
The invention discloses a CBCT acquisition device for animals with different body types. The CBCT acquisition device comprises a guide rail, a supporting frame is arranged below the guide rail, a flat panel detector and an X-ray bulb tube are respectively mounted at the two ends of the guide rail, a reflective film is arranged on the front side of the X-ray bulb tube, the reflective film is connected with the guide rail through a support, a sliding block is arranged on the guide rail, the sliding block is slidably connected with a sliding groove, the sliding groove is formed in the bottom of the detection table, the bottom of the detection table is connected with a rotating motor through an electric telescopic rotating shaft, the side face of the detection table is connected with a sliding motor through a telescopic rod, the sliding motor is fixed to the guide rail, and the rotating motor and the supporting plate are both located in the supporting frame. The rotating motor, the sliding motor and the electric telescopic rotating shaft are connected with a controller. According to the device, the detection size of the flat plate detector can be fully utilized so that the scanned image information is richer, and the detection flat plate can fully exert the advantage of detection precision when a smaller object is detected.
Owner:太丛信息科技(上海)有限公司

Flat panel detector and its preparation method

The invention provides a flat plate detector and a preparation method thereof. The flat plate detector comprises a substrate, a thin film transistor, a first electrode and a photoelectric conversion film layer. The thin film transistor is arranged on the first surface of the substrate. The first electrode is arranged on the first surface and on the same layer with the grid electrode of the thin film transistor. The photoelectric conversion film layer is arranged between the first electrode and the drain electrode of the thin film transistor, and is electrically connected with the first electrode and the drain electrode. The inventor finds that the flat plate detector is simple in structure, easy to achieve and quite thin; the grid electrode of the thin film transistor and the first electrode are arranged on the same layer, so the structure can be simplified and the technique processes are reduced; the photoelectric conversion film is arranged between the first electrode and the drain electrode, so the whole technique steps can be reduced and the yield of factories can be greatly improved; and meanwhile, the yield of the flat plate detector is quite high and can be prevented from being scratched during transmission or use processes.
Owner:BOE TECH GRP CO LTD +1
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