43results about How to "Small external interference factors" patented technology

The invention discloses a seamless table tennis ball bounce performance detecting and sorting device, which comprises a ball supply device, a bounce device, a bounce collision information collection and treatment device and a ball collection device, wherein the ball supply device comprises a ball supply hopper, a discharge pipe, a ball supply rotary disk and a ball outlet elbow which are sequentially connected; the ball outlet elbow is provided with a ball inlet section and a ball outlet section, and the ball outlet section is horizontally arranged; the bounce device comprises a ball receiving bounce slope and a ball receiving bounce plane, the ball receiving bounce slope is arranged under the ball outlet elbow, and the normal direction of the ball receiving bounce slope is perpendicular to the axial space of the ball outlet section; the ball receiving bounce plane is arranged at the bottom of the ball receiving bounce slope and extends in the bounce forward direction of a table tennis ball; the bounce collision information collection and treatment device comprises a plurality of collision sensor and processors which are arranged on the ball receiving bounce plane in parallel. The seamless table tennis ball bounce performance detecting and sorting device can eliminate an effect of the falling initial velocity of the table tennis ball, eliminate errors generated by uneven bounce performance of different areas of a spherical surface of the table tennis ball and achieve real-time online detection.

The invention discloses a method for using photocatalytic reduction to treat waste water containing nitroimidazole antibiotics. The method includes: adding TiO2 into the waste water containing nitroimidazole antibiotics to serve as catalyst, adding organic acid to serve as reducing agent, adjusting the pH of the waste water to be 2-4, controlling a system to be under an oxygen-free condition, and using ultraviolet radiation to degrade the nitroimidazole antibiotics in the waste water. The method has the advantages that the fast opening and decomposition of the heterocyclic nitrogen in the nitroimidazole antibiotics can be achieved, so that the nitroimidazole antibiotics in the waste water can be effectively degraded; the method is high in degrading efficiency, low in external interference factor, and capable of fully utilizing the small-molecule organic acids, containing carboxylic acid functional groups, in the waste water.

The invention discloses a bounce property detection device for a table tennis ball. The device comprises a zero initial velocity release device, a bouncing device, an information acquisition device, aball receiving hopper device, a rotating disc device and classified collection devices, wherein the zero initial velocity release device can guarantee zero initial velocity release during testing ofthe bounce property of the table tennis ball and eliminate influence of the initial velocity of the table tennis ball on the accuracy of a measurement result during testing of the bounce property of the table tennis ball; angle measurement of a bouncing sloping plate is simplified by means of the bouncing device; a high-speed video camera of the information acquisition device shoots the highest point of bouncing of the table tennis ball, so that the bounce property parameters are obtained and subjected to star rating classification, and the accuracy is high; the rotating disc device guaranteesstorage and classification of the table tennis ball. The testing accuracy of the bouncing detection performance of the table tennis ball is improved.

The invention discloses a packaging structure and a packaging method for downward exposure of the front surface of a sensor chip. The packaging structure comprises a base, wherein the base is internally provided with a cavity, the cavity is internally provided with a sensor chip body, the top of the base is provided with a first gasket, the bottom inner wall of the base is fixedly provided with asecond gasket, the inner wall of the second gasket is fixedly provided with a third gasket in a sleeving mode, a screw is arranged at the bottom of the base in a penetrating mode, and two buffer devices are arranged at the top of the base. The structure is simple and novel, the sealing function of the sensor chip is improved, the stability of the sensor is improved, the sensor is connected with the outside through a screw through hole, the use sensitivity is improved, and the packaging method is simple and suitable for market popularization.

The invention discloses an image signal enhancement processing method. The method comprises following steps of (1) collecting original image signals; preliminarily detecting the image signals; (2), inputting the preliminarily detected image signals in an SRD gauss narrow pulse generation circuit so as to form narrow pulse signals; forming the narrow pulse signals into subnanosecond-level second-order differential gauss pulse signals through a second-order differential gauss pulse forming circuit; (3), calculating the output subnanosecond-level second-order differential gauss pulse signals in the step (2) by a calculation device; calculating transmission characteristics according to feedback image signal characteristics; (4), repeating the steps (2) and (3) according to the feedback image signal characteristics in the step (3); and (5) outputting the image signals. According to the method provided by the invention, the image signals are converted into the subnanosecond-level second-order differential gauss pulse signals; the quality of the image signals is improved; the efficiency is high; and the cost is low.

The invention relates to a multi-index detection device based on local surface plasmon resonance sensing. The multi-index detection device comprises a first soft rubber layer, a second soft rubber layer, light sources, an ordered LSPR sensor, microfluidic chips and signal detection components, wherein the first soft rubber layer is provided with a plurality of first mounting holes; the interior ofeach first mounting hole is provided with a light source; the ordered LSPR sensor and the microfluidic chips are successively loaded on the first soft rubber layer; the second soft rubber layer is laid on the microfluidic chips and provided with second mounting holes corresponding to the positions of the first mounting holes; and the interior of each second mounting hole is provided with a signaldetection component. The above-mentioned multi-index detection device provided by the invention can set a plurality of detection channels as needed to facilitate multi-index high-throughput detectionof a sample and improve testing efficiency; in addition, the above-mentioned multi-index detection device only needs to simply track testing light intensity; and once a detection marker is bind to the sample, light intensity changes, and thus, the content of the sample can be detected through detection of the light intensity.

The invention relates to an exhaust gas recycling system for a garbage brick factory. The exhaust gas recycling system comprises a kiln body and a closed garbage green brick producing workshop, wherein the kiln body is divided into a green brick drying section, a furnace section and a finished brick cooling section sequentially, a first air outlet is arranged on the green brick drying section, a first air inlet and a second air inlet are arranged on the finished brick cooling section, and a second air outlet is arranged on the closed garbage green brick producing workshop; a first fan is installed on the first air outlet, a first ventilation pipeline through which the first fan is communicated with the finished brick cooling section is installed on the first fan, and a dust remover, an oxygenation device and a first control valve are arranged on the first ventilation pipeline; a second fan is installed on the second air outlet, a second ventilation pipeline through which the second fan is communicated with the finished brick cooling section is installed on the second fan, and a second control valve is arranged on the second ventilation pipeline. According to the exhaust gas recycling system, repeated combustion of monoxide such as carbon monoxide in exhaust gases can be achieved, so that exhaust emissions are reduced, the utilization rate of fuel is improved, energy conservation and emission reduction are achieved; the exhaust gas recycling system has the advantages of being simple in structure, convenient to use and popularize and capable of achieving energy conservation and emission reduction.

The electrostatic flashing type wheel comprises a center shaft, a hub and a tire, a plurality of supporting plates are fixedly installed on the side wall of the center shaft at equal intervals in an annular mode, the ends, deviating from the center shaft, of the multiple supporting plates are jointly and fixedly installed on the inner side wall of the hub, and the tire is fixedly connected to theouter side wall of the hub in a sleeving mode; a sliding cavity is formed in the center of each supporting plate, a sliding block is slidably connected into each sliding cavity, the upper end and thelower end of each sliding block are fixedly connected with the inner wall of the corresponding sliding cavity through a first spring and a second spring correspondingly, and silk and fur are bonded tothe left side and the right side of each sliding block correspondingly. And a glass screen plate and a rubber screen plate are fixedly mounted on the left side wall and the right side wall in the sliding cavity correspondingly, the rubber screen plate is slidably connected with the fur, and the glass screen plate is slidably connected with the silk. Compared with the prior art, the electrostaticflashing type wheel is small in external interference factor and can emit light stably.

The invention discloses an online analysis system for organic matters in air. According to the novel online analysis system for organic matters in air, a low-temperature (-120 DEG C to normal temperature) external heat exchange refrigeration three-way thermal desorption (double-way sampling and one-way cold focusing) system, a shunt/non-shunt sample injection three-way chromatographic column (one-way pre-column and two-way chromatographic columns with different properties) and a double-ion/photon detector (adaptive large-span concentration switching) are adopted as main analysis systems, and the organic volatile/semi-volatile organic matters in the air are fully analyzed by using a calibration system of direct sample injection multipoint calibration (same as an experimental calibration method) and sampling tube sample injection quality control.

The invention provides a coin and banknote separation and coin sorting machine. The coin and banknote separation and coin sorting machine comprises a rack, a coin and banknote separating device, a coin vibration sorting device and a coin counting and settling device; a coin and banknote separating tray and a plurality of coin sieve trays are arranged in a layered manner, and the vibration settlingof the coin and banknote separating tray and the coin sieve trays is controlled by a motor; and therefore, the classified sorting of coins can be realized. The circular through holes of adjacent rowsof each sieve tray are distributed in a staggered manner, and therefore, an aperture ratio is the highest, the number of sieve holes can be highest under the same area, and the sieving effect per unit area of coins of different nominal values can be optimal. The machine has the advantages of convenient operation, low cost, short process, high efficiency, convenience and the like, and can be easily popularized in and applied to small and medium-sized financial enterprises.

The invention discloses a plastic tube connector connecting structure which is long in service life. The plastic tube connector connecting structure comprises a left plastic tube section and a right plastic tube section, a left metallic sheath concentric with the left plastic tube section is arranged on the outer side of one end of the left plastic tube section, external threads are arranged on the outer side of the left metallic sheath, a right metallic sheath concentric with the right plastic tube section is arranged on the inner side of one end of the right plastic tube section, internal threads meshed with the external threads are arranged on the inner side of the right metallic sheath, the left plastic tube section and the left metallic sheath are of an integrated structure through injection molding, and the right plastic tube section and the right metallic sheath are of an integrated structure through injection molding. The plastic tube connector connecting structure has the advantages that the metallic sheathes are arranged in plastic tube connectors, the plastic tube connectors and the metallic sheathes form a whole through injection molding, the two plastic tube sections are connected in the mode that the threads are machined on the metallic sheathes, the structure is stable, external interference factors are small, and the service life of the plastic tube connectors is greatly prolonged.

The invention discloses a detection method and system for a super high-rise concrete pump pipe based on thermal imaging recognition, and aims to solve the problems that an existing detection method cannot pre-judge and give an alarm in advance, and the detection difficulty is increased. The method comprises the following steps: obtaining a thermal imaging video of a concrete pumping pipeline, extracting multiple frames of thermal imaging images in the thermal imaging video according to a set frequency, converting the multiple frames of thermal imaging images into grayscale images and performing noise reduction, and performing low-frequency region grayscale value change trend analysis and grayscale change frequency approximation degree analysis on the denoised grayscale images respectively;and when the gray value change trend of the low-frequency region is positively increased and the gray change frequency similarity degree percentage exceeds a set threshold value, judging that the pumping pipeline has a local deposition phenomenon. The detection system comprises thermal imaging equipment, a control center and an alarm device which are in signal connection in sequence, wherein thecontrol center comprises an image conversion unit, an image comparison and conversion unit, an image recognition unit and a control unit which are in signal connection in sequence.

The invention discloses a method for preprocessing wireless data by a narrow pulse signal. The method comprises the following steps: (1) collecting the wireless data in a cellular mobile communication system, and carrying out primary defection on the wireless data; (2) filtering fluctuation with a fluctuation period smaller than a signal period N by the primary defection to form a filtering signal; (3) forming the filtering signal in the step (2) into the narrow pulse signal; (3) employing a computing device to compute a sub nanosecond level second order differential Gaussian pulse signal output in the step (2), and computing transfer characteristics according to fed back image signal characteristics; (4) repeating the step (2) and the step (3) according to the image signal characteristics fed back in the step (3); and (5) outputting the signal. The wireless data signal is converted into the narrow pulse signal to avoid and even eliminate the signal distortion problem, the signal is influenced by few external factors, the efficiency is high, the cost is low, and the dissipation is small.