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511 results about "Visual observation" patented technology

Visual observation in English. observation made by the naked eye, observation done without visual aids or other equipment. Inspection activities to be implemented within the cascade area include visual observation, radiation monitoring and non-destructive assay measurements, environmental sampling, and application and verification of seals.

Embedded interferometer for reference-mirror calibration of interferometric microscope

InactiveUS6545761B1Implemented easily and economicallyAccurately determineInterferometersUsing optical meansClosed loopOptoelectronics
A laser interferometer is embedded into an interference microscope to precisely determine the in-focus position of the microscope objective's reference mirror. A collimated laser beam is introduced into the microscope system and split into two beams directed toward a calibration reference surface and the interference objective. The light reflected from the calibration reference surface is returned to the camera. The light into the interference objective is focused onto the reference mirror and returned to the camera. For the purpose of calibration, the two beams are combined at the camera to produce interference fringes. When the reference mirror is in focus, the returned beam is collimated; if the mirror is on either side of focus, the beam is either converging or diverging. Accordingly, the interferogram produced at the camera reflects the in-focus or out-of-focus condition of the reference mirror. The curvature of the wavefront returned from the reference mirror is determined electronically by analyzing the interference fringes produced with the beam returned from the calibration reference surface. By minimizing the curvature of the reference-mirror wavefront as the mirror is translated along the optical path, the reference mirror can be focused with an accuracy greater than possible by visual observation. Furthermore, by automating the focusing system with a precise translation mechanism driven by closed-loop control, operator-to-operator variations are completely eliminated.

System and method for locating inspection robot in petrochemical plant

ActiveCN108225302AGuaranteed seamless positioningObservation synchronizationNavigation by speed/acceleration measurementsSatellite radio beaconingPetrochemicalGlobal Positioning System
The invention discloses a system and a method for locating an inspection robot in a petrochemical plant. The system comprises a global positioning system (GPS) observation unit, an ultra-wide bandwidth (UWB) observation unit, a visual observation unit, a laser observation unit, a mileage observation unit, a combination decision module, an inertial state estimation module, an available positioningobservation/strapdown inertial navigation system (SINS) combination module, and a positioning information fusion module. The GPS observation unit, the UWB observation unit, the visual observation unit, the laser observation unit and the mileage observation unit acquire the respective observation data and send same to the combination decision module; the combination decision module performs multi-layer map-based positioning by combining an environmental map model stored in an environmental model prior information module so as to determine available observation types; the available positioning observation/SINS combination module combines available observation data with a corresponding motion equation established by an inertial state estimation module, and the combined result is sent to the positioning information fusion module for carrying out final integrated pose estimation. The system and the method solve the problem of seamless positioning of the inspection robot which runs in various complicated regions of the petrochemical plant, and guarantee the continuity of a positioning process and the stability of the positioning result.

Protective tool for therapeutic material delivery device, cartridge for therapeutic material delivery device, and a therapeutic material delivery device

InactiveUS6988981B2Preventing wrong and accidental stickingPreventing dissipation of blood adheringInfusion needlesSuction devicesVisual observationRadioactive source
A protective tool for a therapeutic material delivery device prevents wrong sticking of the outer needle of the device after use and prevents dissipation of blood adhering to the outer needle and comprises a cover (8′A) and a cap (61) or stopper (65) attached to a forward end of said cover for protecting the forward end of the outer tubular needle (2A), wherein said cover (8′A) is formed of a plurality of tubes (8′A1, 8′A2, 8′A3, . . . ) having different diameters that are formed so as to consecutively decrease from a forward place to the outer needle hub (2B) in a backward place, and said tubes are thereby connected such that the cover (8′A) is extendable in the longitudinal direction, and a cartridge for use with the therapeutic material delivery device permits direct calibration of a radioactive source charged therein and comprises a transparent cartridge body (8, 18, 38) that holds said therapeutic material (10) inside and permits external visual observation of the therapeutic material (10) and a shielding outer tube (9, 19, 39) that is fitted on an outer circumference of the cartridge body, is slidable in the longitudinal direction of said cartridge body and is made of a radioactive ray shielding material, said cartridge body (8, 18, 38) being exposable with said sliding of said shielding outer tube.

Liquid drop and solid plate oblique collision testing device

The invention relates to a testing device in the aviation field, in particular to a liquid drop and solid plate oblique collision testing device. The problems that an oil drop and cavity wall collision visual test cannot be carried out in an existing aircraft engine bearing cavity test platform, the physical variance of the adjustment scopes of parameters such as liquid drop sizes of other liquid drop and solid wall face collision testing devices and a bearing cavity project is large, the device is complex in structure and high in cost are solved. According to the technical scheme, the liquid drop and solid plate oblique collision testing device is built and comprises a supporting frame, a liquid drop generation component, an angle-adjustable solid plate component, an oil return component and a lighting pick-up system, the dropping diameters of liquid drops are changed by changing syringe needles of the liquid drop generation component, and the dropping speed of the liquid drops is changed by changing the distance between the liquid drop generation component and a collision plate in a sliding mode; oblique angles of the collision plate can be continuously changed. By means of the liquid drop and solid plate oblique collision testing device, the splashing critical working condition caused after the liquid drop and solid plate oblique collision happens is conveniently determined, visual observation on the oil drop and cavity wall collision can be achieved, and cost is reduced.

Surgical Procedures Using Instrument to Boundary Spacing Information Extracted from Real-Time Diagnostic Scan Data

Specific embodiments of the invention are directed to improved phacoemulsification procedures involving the use of processed non-visual three-dimensional data (i.e. diagnostic scan data) to provide a surgeon with additional guidance (i.e. more than that generally obtained from visual observation of the working area) concerning the distance separating a working end of a phacoemulsification instrument and the posterior portion of the capsule of the eye during surgical procedures involving the removal of the crystalline lens of an eye (e.g. a cataract removal procedure). Such separation (i.e. distance or gap) information may be used to aid the surgeon in cutting or scoring the lens to a desired depth while minimizing the risk of penetrating the posterior portion of the capsule with the working end of the instrument. Some embodiments provide for the visual and/or auditory conveyance of distance information to the surgeon wherein visual information may be conveyed by overlaying it with real visual images of actual surface features viewed by the surgeon. Additional embodiments provide for overlaying visual representations of selected three-dimensional structure information (e.g. depths of troughs cut into the lens) with the real surface feature images viewed by the surgeon.

One-step nucleic acid test method based on CRISPR/Cas and isothermal amplification and kit

The invention discloses a one-step nucleic acid test method based on CRISPR/Cas (clustered regularly interspaced short palindromicrepeats/CRISPR-associated protein) and isothermal amplification and akit. The method is a quick field test method used for testing nucleic acid and displaying visual test results through fluorescent light or lateral side immunochromatographic test paper. The test accuracy is effectively ensured through specificity of crRNA (RISPR-derived ribonucleic acid); at a room temperature, whether a test sample contains test nucleic acid can be determined through the test paper or the fluorescent light within 1-2h; and compared with the traditional test method, the precision, simplicity and convenience in operation of the test method are improved to some extent. The kit with purified freeze-drying LbaCas12a, crRNA and RPA (recombinase polymerase amplification) can be formed; a nucleic acid segment of a specific sequence can be conveniently and quickly tested on site;a complicated temperature control instrument such as a PCR (polymerase chain reaction) instrument and other electrophoresis and centrifugation equipment are not required; and nucleic acid of the specific sequence can be tested quickly and sensitively only by a thermostatic device and fluorescence detection equipment and even visual observation.

Core three-dimensional multi-parameter measuring instrument based on visual observation of crack

The invention provides a core three-dimensional multi-parameter measuring instrument based on visual observation of crack. The instrument comprises a controller and a core holder. The controller is used for sending and receiving signal; and measurement of all core parameters is finished in the core holder. The instrument uses nosean core as a main subject, and is provided with upper plungers with three different functions comprising a visualization plunger, an electroacoustic plunger and a porosity permeability plunger, and a public lower plunger. For experiments, nosean core is placed into the holder which is loaded with plungers at both ends, and parameters of the system are set, so that the instrument can automatically complete the corresponding parameter tests. Under conditions of heating and pressurization, the visualization plunger is used to realize real-time observation on crack changes and measurement of crack width through an internally configured camera; the electro-acoustic plunger and the porosity permeability plunger can measure parameters of core, such as porosity, permeability velocity, wave velocity and resistivity, and observe a displacement process and changes of core cracks; and measurement of parameters at three directions X,Y and Z of the core can be realized by changing loading direction of nosean core.

Detection device for bearing ball-separating holder assembly machine after riveting press

The invention relates to a detection device of an assembly machine of a bearing ball separation retainer after riveting press. The detection device is characterized in that the device comprises a frame, an electric control system and a lifting mechanism; an upper detection module is connected with the lifting mechanism; a lower module is arranged on the frame below the upper detection module and used for positioning a bearing to be detected; a first plate electrode and a second plate electrode of the upper detection module are respectively arranged in notches at two ends of an upper module body; a plurality of detection needle holes are formed on the upper module body, the second plate electrode and an upper module head; a plurality of detection needles are respectively arranged in the detection needle holes; a returning spring is arranged at the upper end of detection needles; whether the riveting press of a bearing retainer to be detected is qualified or not can be judged through the contact and break-over condition of the detection needles, the first plate electrode and the second plate electrode. Since the automatic detection manner replaces the visual observation, bearings in mass production can be fully checked, the detection efficiency is high and the detection accuracy is high, thereby reducing the labor intensity and the production cost of bearings.

Remote inversion method of internal action logic of protection device

The invention provides a realization method in which intermediate node information correlated to an internal action logic of a relay protection device is uploaded and a visual logic diagram is combined to invert a protection process of the internal logic when there is a fault at a power grid. The provided method can be applied to a power grid fault information system. And the method comprises the following steps that: when there is a fault at a power grid, internal logic operation information of a relay protection device is processed to generate an intermediate node file that can describe the fault in detail; according to an IEC61850-8-1 protocol, the relay protection device uploads the intermediate node file and a fault wave-recording COMTRADE file to a remote fault information master station; and a visual application module loads the intermediate node file, the protection logic diagram file and the COMTRADE fault wave-recording file to demonstrate a protection logic operation situation in the whole fault process. According to the invention, a visual observation means is provided for inversion of an accident in a power system; and a rapid, accurate, and high efficient informational way is provided for accident localization and a fault analysis; therefore, an action process of a relay protection device is hyalinized and the visibility is realized.

Composite multifunctional anti-counterfeiting mark manufactured by utilizing laser etching

The invention provides a composite multifunctional anti-counterfeiting mark manufactured by utilizing laser etching. With respect to adopted technical means, the composite multifunctional anti-counterfeiting mark manufactured by utilizing laser etching is composed of a thin film layer, a stripping layer, a mould pressing layer, an aluminized layer and a glue layer; an optical variable image is provided with a reserved position which is added with a background pattern with the anti-counterfeiting function; the substances of the mould pressing layer and the aluminized layer in the background pattern are selectively gasified by high-energy laser to obtain an image, characters or marks which are formed by a blank position and the background pattern; consumers can easily judge the authenticity of the product by the direct visual observation by virtue of the high anti-counterfeiting performance of the optical variable image on the mark and the uniqueness of a two-dimension code and the optical variable image which are located and processed; and the invention can also provide a platform to form an interaction between the consumer and a product manufacturer by utilizing a terminal device, so that the anti-counterfeiting mark provided by the invention achieves the purposes of market popularization, market information collecting and product tracking while the information of the product is assured.

Visual test device for damaged form of pile-soil contact surface of specially-shaped pile and use method

The invention provides a visual test device for a damaged form of a pile-soil contact surface of a specially-shaped pile and a use method. The test device comprises a bearing platform, a model pile, a model tank, a water bath tank, a temperature control system, a laser source and a digital camera device, wherein the model pile is arranged as a full-scale specially-shaped pile and is arranged in the model tank; transparent soil is arranged on the periphery of the model pile; the model tank is arranged in the water bath tank; a rotating shaft hole is formed on the bottom of the model tank while a rotating shaft is arranged in the model tank; the rotating shaft is used for driving the model pile to generate vertical displacement or torsional displacement; the temperature control system is matched with the water bath tank and is used for adjusting the temperature of the pile-soil contact surface; and the laser source and the digital camera device are arranged on the upper side and side wall of the model tank. According to the visual test device provided by the invention, the visual observation for shear deformation of concave surface of the cross section of the specially-shaped pile can be realized; the shearing damage characteristics of different loading modes, different temperatures and different piles can be compared; the visual test device has significance in research on shearing of the contact surface of the full-scale model pile; the visual test device provided by the invention has the advantages of simple structure, convenience in operation, easiness in realization and lower cost.

Nozzle detecting system and method

The invention discloses a nozzle detecting system and method. The system is located inside a working bin and used for atomizing detection of a nozzle. The system comprises a clamp, video cameras, LED lamp sources and a processor, wherein the clamp is located at the center of the working bin and used for fixing the nozzle; the video cameras are arranged on the periphery of the working bin and used for shooting the cone angles of spray mist sprayed from the nozzle fixed to the clamp; the LED lamp sources are mounted on the top of the working bin and used for giving out a white light source and compensating light for the video cameras; the processor is used for obtaining the light environment inside the working bin, timely adjusting the light source intensity of the LED lamp sources according to the light environment of the interior of the working bin, and conducting grey processing on the spray mist cone angles shot by the video cameras through the light source intensity of the LED lamp sources so to as determine the sizes of the spray mist cone angles. By means of the nozzle detecting system and method, the problem of visual observation is effectively solved, and the labor intensity of operators is relieved; moreover, the influence of the illumination light source on the lighting environment inside the bin can be avoided.

Grouting and chemical electro osmosis combined discrete material pile model testing device and testing method

The invention discloses a grouting and chemical electro osmosis combined discrete material pile model testing device and testing method. The testing device is characterized by comprising a transparent model tank, wherein a transparent pressure plate is arranged at the upper part of the transparent model tank, a discrete material pile is arranged in the transparent model tank, an electric geogrid is pre-buried in the outer side of the discrete material pile, the top part of the electric geogrid is connected with the positive electrode and the negative electrode of a direct current power supply by lead wires respectively, a grouting pipe is pre-buried at the center position inside a pile body, the discrete material pile is simulated by water-soluble transparent soil and soil at the periphery of the pile is simulated by oil-soluble transparent soil, one side and the upper part of the outside of the transparent model tank are provided with a laser source arranged on a moving mechanism, a digital camera arranged on the moving mechanism and used for observing the space of the transparent model tank is arranged on the front view surface and the top view surface of the outside of the transparent model tank, and the digital camera is connected with a processing device by a data line. The testing device is simple and convenient to operate and has strong repeatability, and the prepared transparent soil is similar to the natural soil body in property; the testing method can be used for chemical electro osmosis, formation of the grouting pile body, and visual observation and measurement of grout seepage in the soil at the periphery of the pile.
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