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83results about How to "Reduce the difficulty of inspection" patented technology

Pneumatic press-fitting device and working method thereof

The invention relates to pneumatic press-fitting device. An optical fiber sensor is arranged in the proper position to which a sliding worktable slides along the Y-axis direction, and is used for detecting whether a product exists or not after the sliding worktable slides to the proper position; a proximity sensor is arranged at the travel part of a boosting cylinder, and is used for detecting whether the boosting cylinder presses and returns to the proper positions or not; a displacement sensor is arranged on the boosting cylinder, and is used for detecting whether the movement displacement of the boosting cylinder reaches the setting size or not; a weighing sensor is arranged on an upper die of the pneumatic press-fitting device, and is used for detecting whether the boosting reaches the required pressure or not; a pair of safety gratings is arranged at the two sides above the sliding worktable, and is used for realizing the protection function; the optical fiber sensor, the proximity sensor, the displacement sensor, the weighing sensor and the safety gratings are respectively and electrically connected with a control system, and the control system is connected with an alarming device, and is used for outputting an alarming signal through an acoustic-optical generation device; the optical fiber sensor, the proximity sensor, the displacement sensor and the weighing sensor are mutually interlocked, so the next function module can be stopped when any function module sends the alarming signal.
Owner:SHANGHAI TUOZHAN ELECTRICAL & MECHANICAL EQUIP

Comprehensive analysis system for xerophthalmia

The invention discloses a comprehensive analysis system for xerophthalmia. The comprehensive analysis system comprises an imaging system, an analyzing system and a video terminal, wherein the imaging system comprises a lighting source, an imaging assembly, a control panel and a camera shooting module, the lighting source penetrates through the imaging assembly and irradiates the eyes of a patient, and the camera shooting module carries out imaging on the eyes of the patient, and transmits the generated image to a PC machine through a USB interface; the analyzing system is arranged at the PC machine end, and comprises a communication module, an image data collecting module, a tear film breakup time check module, a lacrimal rivus height measuring module, a meibomian gland image collecting and enhancing module, a lipid layer analyzing module, a data analyzing module and an information management output module; the video terminal is connected with the analyzing system. With the comprehensive analysis system for xerophthalmia provided by the invention, the functions of tear film breakup time statistics checking, lacrimal rivus height measurement, meibomian gland image collection and enhancement, human eye lipid layer analysis, and the like are realized, a basis is provided for the clinical diagnosis for xerophthalmia, and the comprehensive analysis system is applied to the medical treatment in the relevant fields of clinical diagnosis of the ophtalmology department.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI

Off-axis TMA optical system for reducing processing and resetting difficulty

InactiveCN102062936AMeet the requirements of image qualityDesigned for easy implementationOptical elementsOptical propertySpace optics
The invention relates to an off-axis three-mirror-anastigmatic (TMA) optical system for reducing processing and resetting difficulty, relates to the technical field of space optics, and solves the problems that the conventional off-axis TMA optical system difficultly reaches optical imaging indexes due to difficulty in processing, detection and resetting. In the system, a secondary reflecting mirror is designed to be a sphere, a main reflecting mirror and a third reflecting mirror are designed to be aspheric surfaces, a quadratic term coefficient is set as zero, the main reflecting mirror and the third reflecting mirror are high-order aspheric surfaces containing a six-order term and an eight-order term respectively; thus, the off-axis TMA optical system reaches diffraction limit optical property. When a transfer function is 50 lp, imaging quality is approximately 0.6, and Streh1 Rate is increased from 0.91 to 0.93; surface shape processing tolerance is expanded from Lambda / 50 to Lambda / 40; and the resetting tolerance of the main reflecting mirror, the secondary reflecting mirror and the third reflecting mirror is expanded by four times. By the system, the processing and resetting difficulty is reduced; and the system can conveniently realize the optical property of diffraction limit.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Backlight source detection device

The invention relates to a backlight source detection device. The backlight source detection device comprises a bearing platform for disposing a backlight source to be detected thereon, and an inspection panel which is arranged in a movable mode relative to the bearing platform and can move to a second position from a first position, wherein when the inspection panel is disposed at the first position, a first luminescence area of the backlight source to be detected is exposed, and a second luminescence area apart from the first luminescence area is shielded; and when the inspection panel is disposed at the second position, a third luminescence area, which is different from the first luminescence area, of the backlight source to be detected is exposed, and a fourth luminescence area apart from the third luminescence area is shielded. The advantages are as follows: the examination difficulty and intensity are reduced, the examination efficiency is improved, through practice examination, the defect detection rate of a large-dimension backlight source is effectively improved, and personnel missed detection is reduced.
Owner:BOE OPTICAL SCI & TECH +1

Temperature control box and refrigerator with same

The invention discloses a temperature control box and a refrigerator with the same. The temperature control box comprises a box body, a display control panel and a main control panel, wherein both the display control panel and the main control panel are elongated and arranged in the box body. The main control panel and the display control panel are parallelly arranged at a preset interval which is larger than 15mm. According to the temperature control box, the display control panel and the main control panel are elongated and parallelly arranged in the box body, so that close connection of electronic components on the main control panel and the display control panel is facilitated; the elongated main control panel occupies small space, and the size of the temperature control box can be effectively reduced, so that the production cost of the temperature control box can be reduced; and the size of the temperature control box is small, so that wires in the temperature control box are short, the winding degree of the wires in the box body is reduced, arrangement of the wires in the box body is facilitated, and the check difficulty during system failure is reduced.
Owner:HEFEI HUALING CO LTD

Long-distance intelligent real-time online sensing monitoring system and method of electricity utilization residential quarter switch board room

The invention discloses a long-distance intelligent real-time online sensing monitoring system and a method of an electricity utilization residential quarter switch board room. The long-distance intelligent real-time online sensing monitoring system comprises a server of an electric power metropolitan area network, an electric gateway and a plurality of collectors of all switch board rooms arranged in a plurality of electricity utilization residential quarter local area networks. The plurality of collectors of each switch board room are respectively connected with a down link of the electric gateway in an ether mode. The electric gateway is used as routing equipment of the system. An uplink of the electric gateway is connected with the superior power metropolitan area network in an ether mode. The collectors are used for sensing and collecting information in the switch board room and transmitting the collected information to the server of the metropolitan area network, the server receives the transmitted information then learns the information inside the switch board room according to the received information, and then the server sends out a corresponding instruction according to the received information to achieve a long-distance intelligent real-time online sensing and monitoring function to the electricity utilization residential quarter switch board room. Meanwhile, the invention provides the long-distance intelligent real-time online sensing monitoring method of the electricity utilization residential quarter switch board room.
Owner:FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID

Novel power equipment inspection tour handheld terminal

The invention relates to a novel power equipment inspection tour handheld terminal, which comprises a microprocessor and a power supply module. The microprocessor is connected to an input-output device, a wireless ad hoc network module, an RFID recognition module and a wireless communication module. The system can actively acquire information, fix the inspection tour route, and safely, reliably and rapidly upload information. The wireless communication module at least includes a GPRS wireless public network communication module and a TD-LTE wireless private network communication module. The handheld terminal provided by the invention is added with the wireless ad hoc network module and the TD-LTE wireless private network communication module, and the TD-LTE transmission and the GPRS transmission are mutually independent, thus playing a redundant role.
Owner:STATE GRID CORP OF CHINA +1

Virtual endoscopy system based on CT image

The present invention discloses a virtual endoscopy system based on a CT image. The system comprises: an image collection module configured to receive a plurality of CT images; an image processing module being in communication connection with the image collection module and configured to perform smooth processing and boundary processing of each CT image in the CT images transmitted by the image collection module; a three-dimensional conversion module being in communication connection with the image processing module and configured to perform surface reconstruction of each CT image after the processing through the image processing module to obtain a special three-dimensional image; a center line extraction module being in communication connection with the three-dimensional conversion module and configured to extract the center line of the special three-dimensional image; and a roaming module being in communication connection with the three-dimensional conversion module and the center line extraction module and configured to control the movement track of a virtual camera taking a center line as a viewpoint in the special three-dimensional image and perform roaming.
Owner:THE AFFILIATED HOSPITAL OF QINGDAO UNIV

Lithium ion power battery protection device and method

The embodiment of the invention discloses a lithium ion power battery protection device and method, and relates to the technical field of lithium battery protection. The device comprises at least two protection plates which are electrically connected with battery cell groups of set quantity and are used for managing the states of the battery cell groups. The set quantity is smaller than the total quantity of the battery cell groups in the lithium battery. According to the lithium ion power battery protection device and method provided by the embodiment of the invention, modular management can be carried out on the battery cell groups; and therefore, the problems of wrong wiring, low production efficiency and inconvenient maintenance are solved.
Owner:广东亿纬赛恩斯新能源系统有限公司

Automatic label production method and assembly line production equipment thereof

ActiveCN110497706AEase of handling and inspectionLow probability of printing errorsPattern printingOptically investigating flaws/contaminationPlastic filmAssembly line
The invention provides an automatic label production method and assembly line production equipment thereof. The automatic label production method and assembly line production equipment thereof is simple in control method, high in production efficiency, and adapts the heat transfer printing technology. An identification content to be printed is printed on a soft carrier, which is made of plastic film, with adhesive sticker on the back to make a soft label through using the heat transfer printing technology. The automatic label production method has the advantages that a batch printing data is automatically allocated to multiple pipeline equipment, and whether a printing pattern meets the requirements is identified, then the unqualified printing content is recorded, and finally, supplement printing is performed and the unqualified label is removed before the label is received; the difficulty of processing and checking of the batch printing data by an operator is greatly reduced, the printing error probability is low, the loss after error is small, and the production efficiency is high.
Owner:SHENZHEN KINGPEK CO LTD

V-shaped cutting deviation detecting method of circuit board

The invention relates to a V-shaped cutting deviation detecting method of a circuit board. According to the V-shaped cutting deviation detecting method, a V-CUT deviation detecting hole drilling procedure is added to the hole drilling procedure in hole drilling process of the circuit board; and the V-CUT deviation detecting hole drilling procedure is arranged as follows: one or more V-CUT deviation detecting holes are drilled at each of two ends of each V-CUT line which is proposed to be cut in V shape and outside a formation line of a base plate of the circuit board before or after drilling the hole at the first time; and after the circuit board is formed, a V-CUT groove formed after cutting in the V shape is detected to determine whether the V-CUT groove is cut through the centre of circles of the V-CUT deviation detecting holes at two ends of the V-CUT line, if so, the cutting in V shape can be determined that the deviation not occurred thereto, and if not so, the cutting in V shape can be determined that the deviation occurred thereto. The diameter of a V-CUT deviation preventing hole is 0.8 to 1.0 millimeters. The distance from the V-CUT deviation detecting hole to the formation line is 1 to 2 millimeters. With the adoption of the method provided by the invention, the difficulty in V-CUT detecting can be reduced, the detecting timeliness can be improved, the short circuit phenomenon caused by non-removed V-CUT line can be prevented, and the V-CUT precision can be improved as well.
Owner:SHENGHUA ELECTRONICS HUIYANG

Dry eye disease full-automatic detecting apparatus

The invention discloses a dry eye disease full-automatic detecting apparatus, which comprises a probe assembly, a handle, a portable device and an analysis device, wherein the probe assembly comprises an imaging assembly, a lighting source, a camera module, a camera fixing device, a control board and a cover plate; the imaging assembly comprises an optical filter, a fixed sleeve and a conical drum; the conical drum is of an annular structure chequered with black and white; black rings are formed by conducting silk-screen printing with oil ink, and the oil ink is transmissive in infrared light and is non-transmissive in white light; one end of the handle is connected to the lower end of the probe assembly; the portable device comprises a base, a head supporting assembly, an adjusting handle rod and an adjustable workbench assembly; and the analysis device comprises an image data acquisition unit, a data detection unit and a data analysis unit. According to the detecting apparatus provided by the invention, the black annular structures on the conical drum is invisible to some infrared light while is visible to the white light, so that the demands of four imaging modes are satisfied; and it is unnecessary to detach the Placido conical drum when the detecting apparatus is used, so that a using process is simplified and the conical drum is prevented from getting lost easily.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI

Portable intelligent video detection device for health of power transmission line and pole tower

The invention discloses a portable intelligent video detection device for health of a power transmission line and a pole tower, and belongs to the field of power transmission line state detection. The problems that an existing system for monitoring the power transmission line and the tower is complex in structure, difficult to maintain and poor in portability, and related information of the power transmission line and the tower is difficult to measure and calculate are solved. A video image acquisition module is used for performing video or image acquisition on a power transmission line and a tower; a three-axis acceleration sensor is used for acquiring inclination angle information of the video image acquisition module; a data processing module is used for carrying out inclination angle correction on the videos or images of the power transmission line and the pole tower acquired by the video image acquisition module according to the received inclination angle information, and carrying out image processing on the corrected images or videos to obtain sag and foreign matter conditions of the power transmission line and inclination, defect and foreign matter conditions of the pole tower; a display module is used for displaying. The device is mainly used for monitoring the power transmission line and the pole tower.
Owner:STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD ELECTRIC POWER RES INST +1

A photovoltaic power plant UAV intelligent inspection system

The present invention relates to the field of intelligent inspection technology, in particular to an intelligent inspection system for a photovoltaic power station drone, including: an impeller cover, an impeller, a damping shaft, an upper casing, a lower casing, a connecting seat, a bracket, a connecting arm, a fixing seat, Connecting frame, micro motor, camera, folding frame; the bottom side of the upper shell is provided with a lower shell, and the lower shell is connected with the upper shell through bolts; the left and right sides of the outer wall of the lower shell are provided with a damping shaft, and the damping The rotating shaft is connected with the lower shell through the support arm; a folding frame is arranged under the outer wall of the damping rotating shaft, and one end of the folding frame is connected with the damping rotating shaft through a movable connection; the other end of the folding frame is provided with an impeller, and the impeller passes through The impeller cover is connected with the folding frame. Through structural improvement, the present invention has the advantages of small inspection difficulty, high efficiency, low labor cost, and low personal safety risk, thereby effectively solving the problems and deficiencies in the prior art.
Owner:苏州猎户座技术创新服务有限公司

Building screen lamp monitoring method and system based on video recognition

The invention provides a building screen lamp monitoring method and system based on video recognition. The building screen lamp monitoring method comprises the following steps of S1, obtaining a videosource file played by a screen; S2, playing the video source file, and performing live-action shooting on the played video through a high-definition camera to obtain an actual video file; S3, performing segmented interception on the actual video file to obtain an actual video file interception picture; performing segmented interception on the video source file to obtain a video source file interception picture; and S4, performing comparative analysis on the actual video file intercepted image and the video source file intercepted image, and feeding back the lamp state information of the screen according to a comparative analysis difference result. When the lamp of the building media screen needs to be checked, workers do not need to check on site any more, and the checking difficulty of the lamp of the screen and the workload of maintenance personnel are effectively reduced; and positioning can be accurately achieved, and later maintenance is facilitated.
Owner:深圳市睿智物联科技有限公司

Medical ultrasonic method, system and device for automatically tracking carotid artery

The invention discloses a medical ultrasonic method, system and device for automatically tracking a carotid artery. The method comprises the steps of collecting a two-dimensional gray-scale ultrasonicimage of the neck of a patient; performing edge detection on the ultrasonic image to obtain a corresponding ultrasonic edge image; extracting a carotid artery edge image from the ultrasonic edge image; determining the size and the yaw direction of a sampling frame according to the carotid artery edge image; and outputting the carotid artery ultrasonic image in the sampling frame according to theyaw direction. The principle is simple; the computational complexity is low; and the sampling frame can be automatically adjusted in real time according to the carotid artery, and accurately locate the carotid artery, so that the difficulty of examination is reduced and the efficiency and accuracy of diagnosis are improved.
Owner:深圳蓝影医学科技股份有限公司

Elevator visual inspection method and elevator visual inspection device

The invention discloses an elevator visual inspection method. The inspection method comprises the following steps: acquiring a preset hoistway model and a preset elevator part model; acquiring safetysize requirement information, and generating a corresponding safety module based on the safety size requirement information; adjusting the preset elevator part model based on the safety module to obtain an adjusted elevator part model; and generating an inspection result of an elevator based on the adjusted elevator part model and the preset hoistway model. The invention further discloses an elevator visual inspection device. In the elevator inspection process, the three-dimensional models of a hoistway and the elevator are established according to the actual size of a field site, a field actual object is converted into a virtual three-dimensional model, safety inspection is conducted on actual operation of the elevator by controlling relative operation of the three-dimensional models, andtechnicians do not need to carry out manual observation or measurement in the hoistway any more, so that the inspection difficulty is greatly reduced, and the inspection accuracy is improved.
Owner:GUANGZHOU GUANGRI ELEVATOR IND

Remote transmission equipment and multipoint driving method

PendingCN110877816ANo limit strengthRealize ultra-long distance transportationConveyor partsControl theoryMechanical engineering
The invention discloses remote transmission equipment and a multipoint driving method. The equipment includes a first conveying section, a second conveying section and a third conveying section; a first driving device and a second driving device are respectively arranged at two ends of the first conveying section; the second conveying section and the first conveying section are not on a same straight line, and a third driving device and a fourth driving device are respectively arranged at two ends of the second conveying section; and two ends of the third conveying section are respectively connected to the first conveying section and the second conveying section to realize the conveying of goods from the first conveying section to the second conveying section. The method includes the following steps: obtaining total power of the remote transmission equipment and the number of the driving devices; calculating allocated power of the driving devices according to the total power and the number of the driving devices; determining whether the allocated power exceeds a power threshold of the driving devices; and when the allocated power does not exceed the power threshold of the driving devices, driving the driving devices according to the allocated power. The equipment and method realize ultra-long-distance conveying, reduce a transfer link, and reduce costs.
Owner:HUADIAN HEAVY IND CO LTD

Optical cable state monitoring system

The invention relates to an optical cable state monitoring system, which comprises a data center and a plurality of optical cable state monitoring subnet systems, and is characterized in that the datacenter comprises an online monitoring platform and a GIS display platform; each optical cable monitoring subnet system comprises a transformer substation machine room module and a power transmissionline module; each transformer substation machine room module comprises a distributed optical fiber sensor, a demodulator, a data processing PC and a router; each power transmission line module comprises a point type fiber Bragg grating (FBG) sensor; and the optical cable state monitoring subnet systems are used for controlling the sensors and collecting, processing and analyzing detection data ofthe sensors. The GIS platform displays position information of optical cables, stations, towers and the like in a geographic information graph mode. The fault point position on a current optical cablecan be accurately reflected in real time according to the longitude and latitude of the fault point, and the operation early warning information of the optical cable is displayed in time.
Owner:BEIJING UNIV OF POSTS & TELECOMM +3

Triangular crawler-type inspection robot

The invention discloses a triangular crawler-type inspection robot. The robot comprises a rack, a walking device and a sensing device, wherein the sensing device is installed on the rack and used forsensing the external environment, the walking device comprises at least two sets of longitudinally-arranged walking assemblies and a power assembly, which are installed on the rack, and the power assembly is used for driving the walking assemblies to walk so as to achieve obstacle crossing moving of the robot. The robot is convenient for remotely sensing the external environment of an applicationscene, so that remote inspection of equipment in places such as underground pipe galleries, pipelines or rugged terrains is realized, the inspection mode is convenient, and the inspection efficiency is high; the robot can be applied to places with narrow spaces, the inspection difficulty is reduced, and the labor amount of manual inspection is reduced; the robot can sense environmental noise and smoke and is matched with the camera to collect images in real time, and comprehensive judgment on whether equipment is abnormal or not is facilitated.
Owner:CHONGQING UNIV

Detection device for quickly measuring ion adsorption type rare earth content

The invention relates to a rare earth content detection device, in particular to a detection device for quickly measuring ion adsorption type rare earth content and aims to achieve the technical purpose of providing a detection device which is high in speed and efficiency and low in cost and is used for quickly measuring the ion adsorption type rare earth content. The device comprises a base plate, a capillary oil-phase layer, a capillary water-phase layer, acidity indication paper and a transparent cover plate. The base plate is provided with a detection cavity and an exhaust cavity, a water absorbing hole is formed between the outer surface of the base plate and the detection cavity, and a communication hole is formed between the detection cavity and the exhaust cavity. The capillary oil-phase layer is arranged on the bottom of the detection cavity and is internally provided with a chelating agent, a masking agent and diluent. The capillary water-phase layer is arranged in the middle of the detection cavity, the acidity indication paper is arranged on the upper portion of the detection cavity, and the upper portion of the base plate is covered with the transparent cover plate. Compared with the prior art, the detection device has the advantages that it is not necessary to adopt various devices or a complex process, an intuitive visual result can be obtained only through easy operation, and easiness and quickness are achieved.
Owner:JIANGXI UNIV OF SCI & TECH

Equipment information processing method and system for process simulation

The invention discloses an equipment information processing method and system for process simulation, and the method comprises the steps: obtaining a screening condition which comprises an area whereequipment information is to be exported, an exported equipment type, and an exported equipment attribute; calling a secondary development interface to traverse and retrieve according to the screeningcondition to obtain equipment information and writing the equipment information into the first data template; and generating a statistical data perspective table according to the equipment informationof the first data template. According to the invention, the equipment information obtained by traversal and retrieval of the secondary development interface is utilized to carry out data writing andstatistical data perspective table generation, so that automatic statistics and automatic export of the equipment information are realized, the operation is simple and convenient, the condition of artificial statistics errors is avoided, the time is greatly saved, and the requirement of quickly exporting the equipment information is met. Furthermore, according to the standard, checking is carriedout, and information which does not meet the standard is identified to prompt the user to achieve automatic checking of the equipment information. The method can be widely applied to the field of process simulation.
Owner:GUANGZHOU MINO AUTOMOTIVE EQUIP CO LTD

Gasifier

The invention relates to a gasifier and belongs to the technical field of gasification devices. The gasifier comprises a liquid carbon-5 storage tank, a gasification tank, a gas supply mechanism and a heating element, wherein the gas supply mechanism is in pipeline connection with the gasification tank and used for conveying air into a gasification tank cavity of the gasification tank, and the heating element is arranged in the gasification tank cavity of the gasification tank. The gasifier is characterized by further comprising a liquid carbon-5 material conveying mechanism and a gas spreading mechanism, wherein the liquid carbon-5 material conveying mechanism is serially connected between the liquid carbon-5 storage tank and the gasification tank, and the gas spreading mechanism is arranged in the gasification tank cavity and positioned below the heating element which is arranged, toward the height direction of the gasification tank cavity, in the gasification tank cavity. The gasifier has the advantages that remarkable conservation of energy sources for heating gasification is facilitated, initial heating time can be shortened, gasification effects and efficiency can be improved, requirements on instantaneity in utilization can be meet, inspection and maintenance difficulty can be remarkably lowered, and size can be reduced to improve adaptability to mounting space of utilization places.
Owner:CHANGSHU CITY XINMA PRESSURE VESSEL CO LTD

Power distribution network detection device

The application relates to an electric power distribution network detection device which comprises a high-voltage data acquisition device, a low-voltage data acquisition device and a temperature acquisition device. The high-voltage data acquisition device, the low-voltage data acquisition device and the temperature acquisition device respectively collect high-voltage end data, low-voltage end dataand temperature data of a power system. An operation inspection terminal receives the high-voltage end data, the low-voltage end data and the temperature data and sends the data to receiving equipment of a monitoring main station. And finally, processing equipment determines whether the operation state of the power distribution network is abnormal or not according to a fact that whether the high-voltage end data, the low-voltage end data and the temperature data are abnormal or not. According to the embodiment of the application, the high-voltage end data, the low-voltage end data and the temperature data in the power distribution network are automatically collected and processed, and an inspector can monitor the monitoring points in the power distribution network in real time only by thehigh-voltage end data, the low-voltage end data and the temperature data in the processing equipment. The technical effects of reducing the inspection difficulty and improving the safety of inspection workers are realized.
Owner:SHENZHEN POWER SUPPLY BUREAU

A detection device for rapid determination of ion-adsorption type rare earth content

The invention relates to a rare earth content detection device, in particular to a detection device for quickly measuring ion adsorption type rare earth content and aims to achieve the technical purpose of providing a detection device which is high in speed and efficiency and low in cost and is used for quickly measuring the ion adsorption type rare earth content. The device comprises a base plate, a capillary oil-phase layer, a capillary water-phase layer, acidity indication paper and a transparent cover plate. The base plate is provided with a detection cavity and an exhaust cavity, a water absorbing hole is formed between the outer surface of the base plate and the detection cavity, and a communication hole is formed between the detection cavity and the exhaust cavity. The capillary oil-phase layer is arranged on the bottom of the detection cavity and is internally provided with a chelating agent, a masking agent and diluent. The capillary water-phase layer is arranged in the middle of the detection cavity, the acidity indication paper is arranged on the upper portion of the detection cavity, and the upper portion of the base plate is covered with the transparent cover plate. Compared with the prior art, the detection device has the advantages that it is not necessary to adopt various devices or a complex process, an intuitive visual result can be obtained only through easy operation, and easiness and quickness are achieved.
Owner:JIANGXI UNIV OF SCI & TECH

Off-axis TMA optical system for reducing processing and resetting difficulty

InactiveCN102062936BMeet the requirements of image qualityReaching Diffraction-Limited Optical PropertiesOptical elementsOptical propertySpace optics
The invention relates to an off-axis three-mirror-anastigmatic (TMA) optical system for reducing processing and resetting difficulty, relates to the technical field of space optics, and solves the problems that the conventional off-axis TMA optical system difficultly reaches optical imaging indexes due to difficulty in processing, detection and resetting. In the system, a secondary reflecting mirror is designed to be a sphere, a main reflecting mirror and a third reflecting mirror are designed to be aspheric surfaces, a quadratic term coefficient is set as zero, the main reflecting mirror andthe third reflecting mirror are high-order aspheric surfaces containing a six-order term and an eight-order term respectively; thus, the off-axis TMA optical system reaches diffraction limit optical property. When a transfer function is 50 lp, imaging quality is approximately 0.6, and Streh1 Rate is increased from 0.91 to 0.93; surface shape processing tolerance is expanded from Lambda / 50 to Lambda / 40; and the resetting tolerance of the main reflecting mirror, the secondary reflecting mirror and the third reflecting mirror is expanded by four times. By the system, the processing and resettingdifficulty is reduced; and the system can conveniently realize the optical property of diffraction limit.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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