201results about How to "Large detection area" patented technology

There is a need for a detection device which has high photoreceptive sensitivity in a generally wide frequency region including the infrared region. Therefore, in the present invention, by utilizing a phenomenon in which electric field strength is enhanced by surface plasmon resonance in a negative dielectric constant medium, a detection device is provided which has an electromagnetic wave detection portion disposed at a position where the electric field strength is large.

A tactile sensing garment of intelligent robot consists of garment wearing on intelligent robot and tactile sensing unit set on said garment. It is featured as forming said tactile sensing unit by both top and bottom film electrode plates with each electrode contact being corresponded one by one as well as with one electrode contact being arranged in line array form and another one being arranged in column array mode, sticking a conductive rubber on each electrode contact of bottom film electrode plate and setting a backing strap with holes corresponding to said conductive rubber between two said film electrode plates.

The invention relates to a crop pest detection system positioned on an unmanned aerial vehicle. The crop pest detection system comprises a random access memory, a high-definition camera, an image processor and a main controller, wherein the high-definition camera is used for capturing a crop image; the image processor is connected with the high-definition camera and is used for processing the crop image to obtain a crop pest type in the crop image; the main controller is connected with the random access memory and the image processor respectively and is used for storing the crop pest type in the random access memory. By virtue of the crop pest detection system positioned on the unmanned aerial vehicle, the pest type of a field crop can be automatically obtained, and relevant agricultural management departments can conveniently call the system when the unmanned aerial vehicle returns, so that targeted pest prevention and control measures are taken.

The invention relates to a Hall element differential array based ferromagnetic construction member surface crack detector, comprising a differential array type flux leakage probe, a displacement detecting unit, a signal conditioning circuit and a data acquisition unit; wherein Hall sensors arranged on one surface of a probe circuit board are arranged in a regular array, the Hall sensor group of the probe is arranged at the upper and lower sides of the circuit board in a differential way, two voltage signals are respectively output to the signal conditioning circuit, so as to form a reflective flux leakage voltage signal, and the voltage signal is input into the data acquisition unit. The invention can conveniently detect the size and position of crack defect and has the advantages of large detection area, fast speed and low defect omission ratio.

A hybrid pixel detector structure including a plurality of detector entities, each detector entity including at least one read-out element, such as a read-out ASIC, and an overlapping substantially edgeless radiation sensitive detector volume, these two being electrically coupled utilizing a number of conductive elements in between, further including a substrate, such as a circuit board, or multiple substrates such as one per detector entity, for accommodating the plurality of detector entities, wherein the substantially edgeless detector volume of at least one detector entity of the plurality includes an overhang portion outside the overlap between the detector volume and the read-out element, and the read-out element of at least one other detector entity of the plurality includes an extension portion, also outside the overlap, with a number of electrical coupling elements to electrically couple to the substrate, such as conductors and / or electronics thereof. A corresponding method of manufacture is presented.

A resonator element includes: a base part; plural vibrating arms extended from the base part, each having a first principal surface and a second principal surface opposed to each other and a first side surface and a second side surface connecting the first principal surface and the second principal surface and opposed to each other, the first side surface of at least one vibrating arm of the plural vibrating arms having a first step part provided from the first principal surface side and a second step part provided from the second principal surface side; a first electrode provided on the second side surface of the vibrating arm; a second electrode provided in a position opposed to the first electrode of the first step part; and a third electrode provided in a position opposed to the first electrode of the second step part.

The invention discloses a mechanical polishing solution for preparing an EBSD sample, a preparation method and a mechanical polishing method, and belongs to the technical field of Ni-base single crystal superalloy crystal orientation analysis. The mechanical polishing method of the Ni-base single crystal superalloy EBSD sample is provided for solving the problems that the Ni-base single crystal superalloy EBSD sample is complex in preparation process, time-consuming, low in indexing rate and the like, and the mechanical polishing method with easy preparation of the polishing solution is easy and convenient to operate, low in cost, good in polishing effect and high in indexing rate. The polishing solution is composed of 25 wt%-30 wt% of colloidal silicon dioxide, 2 wt%-3 wt% of hydrogen peroxide, 1 wt%-2 wt% of oxalic acid, 2 wt%-3 wt% of glycerinum, and the balance a pH modifier and distilled water. The mechanical polishing method comprises the steps of (1) cutting, (2) cleaning, (3) inserting, (4) grinding and (5) mechanical polishing. The mechanical polishing method is easy to implement, low in energy consumption and suitable for preparation of the Ni-base single crystal superalloy EBSD sample.

There is a need for a detection device which has high photoreceptive sensitivity in a generally wide frequency region including the infrared region. Therefore, in the present invention, by utilizing a phenomenon in which electric field strength is enhanced by surface plasmon resonance in a negative dielectric constant medium, a detection device is provided which has an electromagnetic wave detection portion disposed at a position where the electric field strength is large.

A lock controller for automatically unlocking and locking a lockable part such as a vehicle door uses a detector for detecting a hand approaching inside a plurality of detection areas. Such a detector is not only arranged to transmit electromagnetic waves and to receive the reflected waves from a target object of detection such as a person's hand but also provided with a plurality of wave detection circuit parts for mixing wave detection signals corresponding to said transmission waves with signals received by said reception antenna at different sampling timings and outputting the mixed signals. A plurality of judging circuit parts each correspond to different one of the wave detection circuit parts and serve to switch on a detection output based on the outputted signals from said wave detection circuit parts to indicate that said target object is approaching and at a speed within a specified range. The detection areas have different sizes for each of the judging circuit parts corresponding to the different sampling timings of the wave detection circuit parts.

The invention discloses an unmanned surface vehicle and robotic fish shoal master-slave collaboration system comprising an upper computer, a host and slaves. The upper computer communicates with the slaves through the host by a wireless communication network. The upper computer is arranged in a control center. The host is arranged on an unmanned surface vehicle. The slaves are arranged on each robotic fish of the robotic fish shoal. The unmanned surface vehicle acts as a signal transmission intermediate station to transmit the detection signals of the underwater detectors, i.e. the robotic fishes, to the upper computer through the unmanned surface vehicle so that the power of signal transmission can be enhanced, the distance of signal transmission can be increased, the robotic fish shoal is quite close to the unmanned surface vehicle, real-time communication between the underwater robotic fishes and the unmanned surface vehicle can be realized, and thus the signal stability and the operation and movement radius of the whole robotic fish shoal can be enhanced. The work mode of collaboration of multiple robotic fishes is adopted so that the detection area of the detectors can be extended and the overall work efficiency can be enhanced.

The fire detector for sensing a fire, comprises; a smoke chamber, a light emitting element, and a light detecting element for detecting a scattered light caused by scattering a light emitted by the light emitting element with a smoke which enters in the smoke chamber, wherein a wall part of the smoke chamber is formed in a shape based on a circle having a predetermined size, and comprises a projecting portion which projects from at least a part of the circle to an outside of the circle, the light emitting element is disposed on the projecting portion of the smoke chamber, and the light detecting element is arranged out of the smoke chamber and an optical axis thereof is approximately perpendicular to a plane including the circle.

A surveillance camera, useful for capturing the movement of an animate object across a wide field of view, includes three separate lens apertures having fixed and adjacent fields of view. Each lens aperture has an associated image sensor that captures the field of view for combination by a microprocessor unit to yield a panoramic image.

The invention discloses a wafer and solar cell photoinduced carrier radiation phase lock imaging detection method and system. The system comprises a near infrared camera, a signal acquisition card, a computer, a three dimensional mobile platform, a long pass filter plate, a first laser device and a second laser device, wherein a sample piece being detected is fixed on the three dimension mobile platform, the three dimension mobile platform is adjusted so as to make the sample piece being detected be clearly visible in a visual field of the near infrared camera, the computer controls the laser devices to subject the sample piece being detected to optical excitation operation by controlling signal acquisition card, the near infrared camera is controlled to be synchronously triggered to collect image sequences, the image sequences collected by the near infrared camera are sent to the computer and then subjected to phase lock processing operation, and therefore high signal to noise ratio carrier radiation signal imaging can be realized. According to the wafer and solar cell photoinduced carrier radiation phase lock imaging detection method and system, the sample piece is excited by laser light in a surface excitation manner, large area can be detected and high detection efficiency is realized, a phase lock algorithm is adopted, good detection results can be obtained in natural light background without darkroom environment, and convenience of detection is realized.

A detector array consists of the first linear-array detector used to detect the first ray penetrating at least part of detected object, the second linear-array detector set in parallel to the first one and used to detect the second ray being emitted alternatively to the first one and being used to penetrate at least part of detected object.

The invention relates to the field of nondestructive testing, particularly to nondestructive detection equipment for defects, such as cracks, air holes, slag inclusions, stress concentrations, and the like, on the surface of a ferromagnetic member. The invention provides an array ferromagnetic member surface defect detector based on leakage magnetic field double component, which is capable of performing surface scanning to the surface of the member. The detector comprises a differential array leakage magnetic probe which is composed of a normal component detection hall sensor set and a tangential component detection hall sensor set that are used for detecting a normal component voltage signal and a tangential component voltage signal of the leakage magnetic field respectively, a signal conditioning circuit which is used for conditioning a voltage signal detected by the differential array leakage magnetic probe, and a data acquisition and processing unit which is used for analyzing the voltage signal output by the signal conditioning circuit and judging if the surface of the ferromagnetic member has a defect. The array ferromagnetic member surface defect detector based on the leakage magnetic field double component has large one-time detection area, quick detection speed, high detection accuracy and low omission ratio, and can provide the data required for quantitative analysis of the defects such as the crack and the like on the surface of the member.

The invention provides a gas scintillation proportional counter, consisting of a gas container and a photomultiplier tube, wherein the gas container is filled with working gas; an entrance window and an exit window are respectively arranged above and under the gas container which is internally provided with an electric field; Gamma ray or X ray enters the gas container after penetrating the entrance window, and has a photoelectric effect with the working gas in the gas container so as to generate photoelectrons; under the action of the electric field, the electrons are accelerated by the electric field, then excite gas atoms to emit vacuum ultraviolet photons which are emitted from the exit window and detected by the photomultiplier tube, and the upper part of the exit window is a wavelength conversion structure. The gas scintillation proportional counter can meet the need of measurement of internal radiation living bodies after the body intakes low-energy nuclide, and can detect the returned laser of the working gas by only needing to use the common photomultiplier tube, thus greatly reducing the cost of the gas scintillation proportional counter.

The invention relates to a partial discharge detection device and method of a netted differential cable joint. The detection device comprises a signal detection unit and a signal processing unit; both the signal detection unit and the signal processing unit are arranged in the cable joint; the signal detection unit of a netted structure employs multi-sheet distributed layout to form an angular difference; and the signal processing unit uses a difference detection principle to process multiple groups of signals transmitted by the signal detection unit. According to the partial charge detection device, a differential signal detection method is used in a capacitance sensor of the cable joint to detect partial discharge signals, the capacitance sensor arranged in the cable joint is of a netted structure, and thus, the detection area is increased, the capacitance is reduced, and the device can be installed conveniently outside a silicon rubber layer of the cable joint and inside a copper case.

The invention relates to the field of bridge detection devices. The invention particularly discloses an existing bridge pier stud crack detection device. The device comprises a first semi-arc support,a second semi-arc support, a first semi-arc guide rail and a second semi-arc guide rail, wherein the second semi-arc support is detachably connected with the first semi-arc support to form a circularring shape; the second semi-arc guide rail corresponds to the first semi-arc guide rail; the first semi-arc-shaped guide rail and the second semi-arc-shaped guide rail are fixedly connected with thefirst semi-arc-shaped support and the second semi-arc-shaped support respectively. Ultrasonic flaw detection devices and driving assemblies for driving the ultrasonic flaw detection devices to move along the rails are arranged on the first semi-arc-shaped guide rail and the second semi-arc-shaped guide rail, through driving of the vertical hydraulic cylinders, the vertical supporting connecting rods drive the first hinge connecting rods to move, and therefore the first idler wheels are pressed on the outer wall of the pier column. The device can automatically detect cracks on the outer side ofthe pier column, eliminates terrain limitation, and is higher in detection speed and large in detection area.

The invention discloses a control method of a dust concentration detection component for a dust collector. The dust concentration detection component comprises a main body, a light transmitting device, a light receiving device and a transparent vibrator. The control method comprises the following steps: controlling the transparent vibrator to start to work so as to remove accumulated dust on lenses of both the light transmitting device and the light receiving device; detecting the intensity of light received by the light receiving device; when the intensity of light received by the light receiving device is smaller than the lower limit of a preset intensity interval, controlling the light transmitting device to improve the intensity of transmitted light to enable the intensity of light received by the light receiving device to be in the preset intensity interval. The control method can control the dust concentration detection component to perform self-cleaning during dust concentration detection at each time, so that the dust concentration detection precision can be greatly improved.

The invention discloses a special drill for geophysical prospecting. The special drill comprises a hollow pipe body, wherein two ends of the hollow pipe body are closed; the hollow pipe body is provided with a plurality of water outlets; the hollow pipe body is further fixedly provided with a hollow drilling rod connecting rod; and the inner cavity of the drilling rod connecting rod is communicated with the inner cavity of the hollow pipe body. The special drill for geophysical prospecting adopts the structure design and adopts a water flushing method as a working principle, so as to completely overturn the working principle of a geophysical prospecting drill and completely prevent an underground pipeline outer layer from being damaged by the geophysical prospecting drill; and the prospecting area of the drill also can be expanded, and the special drill has the beneficial effects of safety, high efficiency and the like.

The invention discloses a composition, a film, a preparation method and a detection method for detecting the intensity of an ultraviolet light, and relates to the technical field of optical detection, aiming at detecting the intensity of large area of ultraviolet light as well as lowering complexity in the detection. The composition includes a nematic phase mixed crystal, a chiral additive, a cholesteric liquid crystal, an azobenzenes monomer, a light polymerable monomer and a photoinitiator. The film includes the composition provided by the technical solution. Upon preparation, each component of the composition is evenly mixed and spread to form a mixed system pre-fabricated film layer which is radiated by ultraviolet light, thus preparing the film. According to the invention, the composition is intended for detecting the intensity of the ultraviolet light.

The invention discloses a manipulator logistics sorting system based on machine vision processing and a working method thereof. The manipulator logistics sorting system includes a computer, a camera device and a manipulator, the computer communicates with the manipulator through a wireless communication network, the camera device is arranged on a telescopic clamping claw of the manipulator, and the manipulator is installed on the base. According to the manipulator logistics sorting system based on machine vision processing and the working method thereof, since the openMV camera device is usedfor machine vision processing, bar codes on logistics express delivery can be identified and contained contents are obtained, the required express delivery can be very accurately identified and sortedout, obtained information can be transmitted to the computer for storage, and manual inspecting and recording are convenient; and since the openMV camera device is adopted, the sizes of objects and the current distance from the manipulator can be judged autonomously through captured pictures, the included angle of extension required by the clamping claw of the manipulator is autonomously calculated, the problem that traditional manipulators can only operate products with the same specification in flow is solved, and applicability is high.

An agricultural harvester is provided with a pivotable discharge elbow that conveys picked-up and processed crop into a transport container of a transport vehicle. An electro-optical device is correlated with the discharge elbow. An electronic evaluation and control processing unit is connected to the electro-optical device and processes signals received from the electro-optical device to effect an automatic targeted control of the crop stream into the transport container based on the processed signals. The electro-optical device is a 3D laser scanner provided with a 2D laser scanner and a pivot unit that pivots the 2D laser scanner about an approximately horizontal axis.

An agricultural harvester is provided with a pivotable discharge elbow that conveys picked-up and processed crop into a transport container of a transport vehicle. An electro-optical device is correlated with the discharge elbow. An electronic evaluation and control processing unit is connected to the electro-optical device and processes signals received from the electro-optical device to effect an automatic targeted control of the crop stream into the transport container based on the processed signals. The electro-optical device is a 3D laser scanner provided with a 2D laser scanner and a pivot unit that pivots the 2D laser scanner about an approximately horizontal axis.

A resonator element includes: a base part; plural vibrating arms extended from the base part, each having a first principal surface and a second principal surface opposed to each other and a first side surface and a second side surface connecting the first principal surface and the second principal surface and opposed to each other, the first side surface of at least one vibrating arm of the plural vibrating arms having a first step part provided from the first principal surface side and a second step part provided from the second principal surface side; a first electrode provided on the second side surface of the vibrating arm; a second electrode provided in a position opposed to the first electrode of the first step part; and a third electrode provided in a position opposed to the first electrode of the second step part.

The invention provides an automatic detection tool which comprises a bottom structure, a horizontal movement mechanism, a vertical feeding mechanism and a manipulator system, and the detection tool has the advantages of long detection distance, large detection area, many detected points, accurate control and high efficiency. The invention also discloses an automatic detection method based on the automatic detection tool. A horizontal mobile supporting plate is moved to at least two fixed positions of a horizontal guide rail, the manipulator system is adjusted to detect a detected object within the whole length interval along the horizontal guide rail direction without omission, the horizontal supporting plate is prevented from selecting different positions continuously in the length direction, and the automatic detection efficiency can be substantially improved.

The invention provides an ATM vibration detection alerter which mainly comprises a power supply management module, a vibration detection module which is used for detecting a vibration signal, a signal amplification module which is used for amplifying the signal, an A / D conversion module, a threshold control module which is used for setting alarm difficulty, a pulse number control module which is used for selecting the counting number of pulse number, and an alarm output module. The ATM vibration detection alerter is small in size and easy to use, and can be directly adhered on an object requiring protection. When the object requiring protection is intruded and vibrates, cables are damaged, the ATM vibration detection alerter is disassembled or an alarm terminal falls off, an alarm signal can be transmitted to an alarm host by the ATM vibration detection alerter. Besides, the ATM vibration detection alerter is high in detection sensitivity and quite high in security and reliability.