29 results about "Oil immersion" patented technology

A multifunctional pathological section scanning and arranging machine disclosed by the present invention comprises a rack, the rack is provided with a light path assembly, a scanning assembly, an XY platform, an objective table and a slide automatic loading assembly, the slide automatic loading assembly comprises a base, the base is rotatably connected with a rotating disc, the rotating disc is driven by a rotating disc motor fixedly installed on the base to rotate, and the rotating disc is driven by a motor to rotate. A plurality of partition columns are uniformly arranged on the turntable along the circumference at intervals, slide box placing positions are respectively arranged between every two adjacent partition columns and are used for placing slide boxes, a lifting station is arranged on one side, corresponding to the base, of the turntable, a lifting assembly and a guide assembly are respectively arranged on the base and correspond to the lifting station, and a slide pushing assembly is arranged at the upper part of the lifting assembly. The equipment disclosed by the invention integrates four basic functions of bright field, fluorescence, high flux and oil immersion lens, and has multiple purposes; and the automatic slide loading assembly can be used for sorting the scanned slides, so that an operator is helped to sort and sort the slides.

This invention belongs to the field of medical image processing technology, specifically relating to a method for identifying, counting, and determining the proportion of target-shaped red blood cells. The method involves acquiring high-resolution digital images of bone marrow or peripheral blood smears under an oil immersion lens; inputting these high-resolution digital images into a dual-task deep learning detection model, which simultaneously performs pixel-level semantic segmentation of individual red blood cells and their intracytoplasmic target structures; based on the localization and pixel-level semantic segmentation, determining the presence and classification of each red blood cell, counting the number of target-shaped red blood cells and the total number of red blood cells, and determining the proportion of target-shaped red blood cells using a proportioning algorithm; based on the proportion of target-shaped red blood cells, fusing red blood cell parameters to generate morphological integrated indicators, and outputting a diagnostic report. This solves the problems of lacking standardized image acquisition procedures and difficulty in accurately distinguishing between target and non-target-shaped red blood cells in existing technologies.

The invention relates to a reliability device for testing an optical microphone by simulating oil pressure and a testing method, and belongs to the technical field of optical sensor testing. The device mainly comprises a test box, an oil conservator, an air pressure system, a pressure control system and an ultrasonic signal generation system. The test box is pressurized through the blast pump and the oil conservator, and oil pressure environments at different depths in the transformer are accurately simulated by using a plurality of pressure release valves with different pressure thresholds. According to the invention, not only can the sensitivity and the minimum sensing amount of the optical microphone under different static oil pressures be tested, but also fatigue life evaluation can be carried out through controllable pressure circulation. The device has the advantages that the oil pressure control is accurate, the range is wide, the safety is high, the functions of vacuum simulation, ultrasonic excitation and the like are integrated, and a key test means is provided for model selection, point distribution and reliability evaluation of the optical microphone in the oil-immersed transformer.

The invention relates to the technical field of electrical equipment defect detection, and particularly discloses an oil-immersed transformer detection device based on fluorescence reflection. The device integrates excitation, filtering, imaging, data processing and supporting modules, realizes oil film thickness quantification through a corrected Beer-Lambert law, analyzes oil film edge continuity based on a fluid mechanics equation so as to discriminate the oil stain type, and solves the problems of fuzzy nature determination, incapability of quantification and low discrimination precision in the prior art.

This invention discloses a non-oil immersion large numerical aperture microscope objective, composed of a first lens group S1, a second lens group S2, a third lens group S3, and a fourth lens group S4. The total length (Lob) of the four lens groups is ≤50mm, and the focal length (EFL) of the microscope objective is... ob The focal length EFL of the first lens group S1 S1 The focal length EFL of the second lens group S2 S2 The focal length EFL of the third lens group S3 S3 The focal length EFL of the fourth lens group S4 S4 Satisfying: -3.40 ≤ EFL S1 / EFL ob ≤-3.90, 5.0≤EFL S2 / EFL ob ≤9.0, 8.0≤EFL S3 / EFL ob ≤21.0, 1.30≤EFL S4 / EFLob≤1.75, HI / EFLob≤0.139, where HI is the height of the observed object. The second lens group S2 can move along the optical axis. Its advantage is that the numerical aperture of the objective lens can be ≥0.95 without oil immersion. By adjusting the distance between the objective lens elements, the imaging blur caused by the processing error of the coverslip can be corrected, and the difference caused by the thickness of the coverslip can be compensated. It has a good effect on correcting chromatic aberration without using special optical materials such as DOE.

This utility model relates to an oil-immersed transformer pressure-holding and sealing testing device, belonging to the field of transformer manufacturing technology. It includes a testing pool and testing equipment mounted on the upper surface of a base. The testing equipment consists of a first electric slide rail, a gantry frame, a hydraulic telescopic rod, and a load-bearing structure. An observation mechanism is provided outside the testing pool. The observation mechanism includes a moving component, a piston assembly, and a camera. The moving component includes a second electric slide rail fixed to the upper surface of the base and surrounding the testing pool, with a mounting bracket connected to the second electric slide rail. The observation mechanism also includes a wave seat fixed outside the testing pool and used in conjunction with the piston assembly. This oil-immersed transformer pressure-holding and sealing testing device uses a camera to capture real-time images of air bubbles on the transformer surface. Combined with the airflow cleaning function of the piston assembly, it ensures clear images, improves testing accuracy, and automates the entire testing process, reducing manual intervention.

The invention discloses an astigmatic displacement microscopic imaging method and an astigmatic displacement microscopic imaging device for axial sub-nanometer resolution, namely an astigmatic displacement microscope (ADM). The astigmatic displacement microscopic imaging method and the astigmatic displacement microscopic imaging device for axial sub-nanometer resolution are applied to an astigmatic displacement microscope (ADM). The ADM technology is based on the astigmatism measurement principle, has the advantage of optical non-contact, and can simultaneously realize four measurement functions: microscopic three-dimensional shape scanning imaging, displacement measurement, vibration analysis and film thickness measurement. The Z-axis resolution of three-dimensional morphology imaging is about 0.1 nm, and the thickness detection of a monatomic layer of a two-dimensional material and the like can be met; the device can be matched with any objective lens, such as working media of air, water immersion and oil immersion; a fast scanner is adopted to replace a traditional sample displacement table for scanning, and the imaging time of a single image is fast to a second level; and in combination with a normalization circuit, the influence of different sample reflectivity on a measurement signal can be eliminated. The astigmatic displacement microscope can meet the test requirements of application scenes such as micro-nano devices, semiconductors, piezoelectric sensing, material morphology measurement, in-situ surface and interface research, precise displacement measurement, microscopic vibration analysis and the like.

The invention discloses a capacitor film breakdown characteristic comprehensive test method and device, and relates to the technical field of power test. The device comprises a control device, and an oil immersion device, a film device, a grounding electrode device, a first power connection electrode device, a second power connection electrode device, a test power supply device and a test recording device which are electrically connected with the control device. Through cooperation of all the devices, the requirement for rapid and efficient testing of a large number of to-be-tested films can be met. Point testing and surface testing functions are achieved, and testing diversity is improved; in addition, the oil immersion device can be selected to enable the to-be-tested film to be in an oil immersion state, so that the test condition is closer to the actual operation condition, and the test accuracy is improved. And the test power supply device has a function of switching power supply output modes, so that a breakdown test under direct current can be carried out, and various voltages of other types can be applied to carry out tests in consideration of actual working conditions.

The utility model relates to the technical field of micro-nano optics, in particular to a light field switching device and a light field switching and characterization system. The light field switching device comprises a laser, an optical parametric oscillator, a three-dimensional moving table, a substrate and an oil-immersed objective lens fixed on the three-dimensional moving table, the laser, the optical parametric oscillator, the three-dimensional moving table and the substrate are sequentially arranged, a metal film layer is plated on one side of the substrate, and the three-dimensional moving table is configured to bear the oil-immersed objective lens to move relative to the substrate. The three-dimensional moving table is moved to drive the oil-immersed objective lens to move, so that the relative distance between the focus of the oil-immersed objective lens and the metal film layer on the substrate is changed, the focusing degree of the exciting light is controlled, the exciting light focused by the oil-immersed objective lens and the metal film layer are subjected to different reactions, and different fields to be measured are generated. A user can quickly switch different tight focusing light fields and surface plasmon polariton fields only by adjusting the three-dimensional mobile station, and when parameters of incident light are changed, the switching device is still applicable and has high reusability.

The application discloses a super-long focal depth vector polarized light imaging system and method for minimum light flux depth imaging, and relates to the field of optical imaging. The system comprises a laser for emitting excitation light; a vector polarized light generator for converting the excitation light into vector polarized light; a phase modulation element for phase modulating the vector polarized light; an imaging module comprising a high numerical aperture objective lens and a silicon oil immersion objective lens for high-precision positioning of fluorescent molecules in biological tissues; and a detection module for receiving and detecting fluorescent signals emitted by the fluorescent molecules to realize positioning and imaging analysis of the fluorescent molecules. The application significantly expands the imaging focal depth through vector polarized light and phase modulation, and can realize high-resolution imaging in tissues with a depth of more than 1 micrometer.

The utility model provides a kind of oil dropping device for high-power oil lens microscopic imaging, including support adjustment module, oil storage module and oil inlet module, and oil inlet module and oil storage module are fixedly installed on support adjustment module;Oil inlet module includes quantitative pump, oil pipe, oil dropping needle and oil dropping needle fixer, and quantitative pump is fixedly installed on the fixed plate that support adjustment module has;Oil dropping needle is fixedly installed on the adjusting support that support adjustment module has by oil dropping needle fixer, and adjusting support is used to adjust the position of oil dropping needle, and oil dropping needle, quantitative pump and oil storage module are sequentially connected by oil pipe.This utility model ensures the quantity of each oil drop consistent by quantitative pump assembly, can realize accurate quantitative oil drop, avoids the problem that manual operation oil drop quantity is not accurate, and through support adjustment module, the position of oil dropping needle can be flexibly adjusted, and the position of oil dropping needle can be adjusted according to actual needs, to adapt to the observation needs of different samples.

The utility model relates to the technical field of microscope auxiliary equipment, in particular to a device for automatically oiling a slide, detecting oil and recovering oil in a slide box. Comprising a microscope, an objective lens of which is provided with an oil immersion lens; the object carrying workbench is located below the objective lens and comprises an object carrying plate, a material taking assembly arranged on the object carrying plate, a first X-axis driving assembly driving the object carrying plate to move along the X axis and a Y-axis driving assembly driving the object carrying plate to move along the Y axis. The oil supply mechanism is used for supplying oil to the slide on the observation position of the microscope as required and comprises an oil nozzle and an oil supply assembly which are connected through an oil supply pipeline; the detection mechanism comprises a sensing device, and the sensing device faces an oil dripping position on a slide on the observation position of the microscope; the slide box feeding and discharging mechanism is located on the side edge of the carrying workbench. The device for automatically oiling the slide, detecting the oil and recovering the oil in the slide box can automatically oil, detect the oil and recover the oil in the slide box, and is high in practicability.

The utility model discloses an oil-immersed light high-voltage test transformer which comprises a transformer body, a plurality of binding posts are installed at the top end of the transformer body, fixing plugs are inserted into the tops of the binding posts, electric connection rods are installed in the binding posts, electric connection sleeves are connected to the outer sides of the electric connection rods in a sliding mode, and the fixing plugs are inserted into the fixing plugs. A supporting ring is installed on the side wall of the power connection sleeve, a groove corresponding to the power connection sleeve is formed in the bottom of each fixing plug, and one side of each fixing plug is fixedly connected with an L-shaped linkage rod. The limiting block, the L-shaped linkage rod and the fixing plug are limited through rapid limiting and locking of the limiting wedge block on the limiting block, the stability of extrusion of the fixing plug and the supporting ring on the end of the connecting line is guaranteed, the improved connecting operation is simpler, more convenient and faster, compared with a traditional screwing mode, the time for connecting multiple lines is shortened, and the connecting efficiency is improved. The connection efficiency is improved, and the labor intensity of operators is reduced.

An oil removal method is disclosed that removes an oil for an oil immersion object lens adhering to a smear surface of a smear of a sample. The method may include removing the oil by moving at least one of a first holder holding the smear to be subjected to oil removal or a second holder holding an oil absorption member that absorbs the oil from a separated state where a contact surface of the oil absorption member and the smear surface are positioned away from each other to a contacting state where the smear surface and the contact surface are in contact with each other, and moving at least one of the first holder or the second holder from the contacting state to the separated state after removing the oil.

The invention relates to an optical microphone vibration environment reliability test device and test method, and belongs to the technical field of power equipment detection. The device comprises a test box body, a vibration simulation system, an oil-immersed environment simulation system, an ultrasonic signal generation system and an optical microphone fixing part, and can simulate the multi-axial vibration working condition of the oil-immersed transformer in a range of 1-600Hz at high precision. The testing method of the scheme comprises the following steps: testing the change rule of the sensitivity and the signal-to-noise ratio of the optical microphone along with vibration parameters in a simulated oil immersion vibration environment; the method comprises the following steps: quantitatively measuring cavity length drift of a Fabry-Perot interference cavity caused by vibration by using a laser interferometer, and establishing a cavity length-frequency mapping model; and carrying out a reflecting diaphragm durability test and an optical fiber bending loss test, and evaluating the performance attenuation and the service life under long-term vibration. According to the invention, the blank in the prior art is filled, and a systematic evaluation basis is provided for reliable application of the optical microphone in the transformer.

This invention discloses a method for detecting fires in outdoor oil-immersed transformers based on binocular 3D vision. Based on the imaging effect of an infrared thermal imager, the geometric imaging model of the infrared thermal imager is treated as a pinhole camera model, and a pinhole camera model is established. A checkerboard calibration plate is fabricated. Using external transmission infrared radiation, the specially made checkerboard calibration plate is attached to the surface of the heat source. Multiple infrared images of the calibration plate from different angles are acquired, and then calibration is performed using a camera calibration tool provided by OpenCV. The intersection center of the horizontal and vertical bars of a ladder is used as a feature reference point for calibrating the extrinsic parameters of the infrared thermal imager. The EPnP algorithm and ICP-based 3D-3D pose estimation are used to calculate the camera pose. After registration of the infrared and visible light images, abnormal high-temperature areas and target points are extracted. This invention solves the problem of large errors in single-band infrared fire detection methods due to interference from outdoor sunlight, humidity, and wind speed, and improves the accuracy of calibration.

This invention provides a rotating interferometric imaging spectroscopic microscopy system and apparatus. Light emitted from a multi-band LED light source passes through a multi-band fluorescence filter to obtain narrowband light, which then enters an oil immersion lens to illuminate a fluorescently labeled sample. The excitation light from the fluorescently labeled sample passes through the multi-band fluorescence filter into a rotating Sagnac interferometer, forming two transversely sheared interference beams. These beams are then converged through a Fourier lens onto the image plane of a high-sensitivity camera, generating an interference image. The high-sensitivity camera continuously acquires multiple frames of interference images. A computer processing module performs multi-frame interference image registration and Fourier transform to achieve spectral reconstruction, obtaining a unified spectral data cube that includes both two-dimensional image information and one-dimensional spectral information of the fluorescently labeled sample. This invention utilizes interferometry to obtain the spectral information of all pixels in the sample, offering high light throughput and high reliability, thus improving the imaging system's resolution of fluorescently labeled samples.

The utility model relates to the technical field of electric power engineering equipment, in particular to an oil-immersed power transformer which comprises a transformer body, an oil tank support is fixedly installed on one side of the transformer body, and an oil level gauge assembly is arranged on the top of the oil tank support; by arranging the oil tank body, the oil conveying pipe, the light disc, the stroboscope lamp body and other components, the transformer body communicates with the oil tank body through the oil conveying pipe, so that liquid oil in the transformer can flow into the oil tank body. When the oil level changes, the floating disc drives the connecting rod and the light disc to move up and down, and the pressure-sensitive trigger element at the bottom of the light disc controls the light emitting color of the stroboscope lamp body. Therefore, the device can monitor the change of the oil level to visually warn the screened abnormal condition of the oil level through the light beams with different colors of the stroboscope lamp. By arranging the light-transmitting holes, the polyhedral crystal, the light-transmitting grating, the limiting columns and other parts, the movement range of the floating disc is limited through the limiting columns, and the oil level monitoring accuracy is guaranteed.

The application discloses a kind of anti-twist steel wire rope maintenance detection integrated machine, including feed end, feed end is sequentially connected cleaning assembly, detection box and oil immersion component by steel wire rope, the inside front end of cleaning assembly is rotationally arranged front end ring, the right side circumference of front end ring is equipped with a plurality of cleaning brushes, the front end of cleaning brush is rotationally connected with the right side of front end ring, the rear end outside of cleaning brush is provided with spring column, the outer end of spring column is rotationally arranged rear end ring, the inside of rear end ring is evenly provided with a plurality of lugs, the outside of front end ring is meshedly connected with first power mechanism by gear;Detection box includes detection box shell, camera and reflector, camera is set on the inside of detection box shell upper plate, reflector is set in the inside lower two corners of detection box shell, light source is respectively set on the inside two side walls of detection box shell.The application discloses device can improve the cleaning force and effect of cleaning assembly, low-cost time detects the broken wire of steel wire rope, while shortening oil draining time, improve work efficiency.

This utility model relates to the field of medical image processing technology, specifically to a fully automated cell microscopy image scanning system. It aims to solve the problems of low throughput, time-consuming and labor-intensive traditional image acquisition methods, which are prone to errors and missed detections. The key technical points are: it includes a host computer, scanning and browsing software, and a workstation. The host computer includes: a slide loading module, a stage, an image acquisition module, and a light field module arranged sequentially along the slide delivery direction; it also includes an automatic lubricator. It can realize automatic scanning, identification, acquisition, statistical analysis, and other functions of target samples, and provides a user-friendly interface. It has compatibility with brightfield, fluorescence, and high-precision oil immersion scanning capabilities, and can be applied to clinical pathological diagnosis, pathological teaching, histological cell imaging, fluorescence analysis, and digital immunohistochemical imaging.

This invention relates to the field of power equipment defect detection technology, specifically disclosing a detection device for oil-immersed transformers based on fluorescence reflection. The device integrates excitation, filtering, imaging, data processing, and support modules. It quantifies oil film thickness using a modified Beer-Lambert law and determines oil stain type by analyzing the continuity of the oil film edge based on fluid dynamics equations. This solves the problems of vague qualitative analysis, inability to quantify, and low accuracy in existing technologies.

The embodiment of the invention provides a defect detection method and device for oil-immersed equipment, equipment and a storage medium. The method comprises the following steps: firstly, acquiring a to-be-processed image of the oil-immersed equipment, then carrying out image standardization processing on the to-be-processed image to obtain a standard to-be-processed image, inputting the standard to-be-processed image into a preset defect detection model, and carrying out defect detection on the to-be-processed image according to the standard to-be-processed image, the defect detection model is determined on the basis of a plurality of defect images of the oil-immersed equipment and the labeled defect information corresponding to each defect image. According to the method provided by the invention, by constructing the defect detection model, the defects of the oil-immersed equipment can be efficiently and accurately detected, and the reliability of a detection result is improved.

The purpose of this invention is to propose a grounding monitoring and protection system for the final screen of an oil-immersed instrument transformer with photoelectric signals. This system includes an electrical signal monitoring circuit for the final screen grounding, an optical signal monitoring circuit for the final screen grounding, and a grounding protection circuit for the final screen. It can monitor the final screen's grounding status (good, poor, ungrounded, and under maintenance). This system monitors the final screen's grounding status during operation, eliminating the need for on-site inspections by maintenance personnel during power outages. This avoids situations where maintenance personnel fail to check for grounding issues or where grounding is poor during operation. Furthermore, when the final screen is ungrounded, the surge arrester protects the final screen from damage.

1. The name of the design product: optical fiber through device. 2. The use of the design product: the product is used in oil-immersed transformer to connect the internal and external optical path to achieve the purpose of temperature measurement. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.