128results about How to "No bias" patented technology

The invention provides a steel tube drilling device provided with multiple drill heads. The device comprises a workbench, a driving mechanism, a drilling mechanism and a clamping mechanism, wherein the driving mechanism comprises a first gear, a rack and a drive shaft; the drilling mechanism comprises multiple drilling apparatuses, and each drilling apparatus comprises a stand column mounted on the workbench, a cross bar mounted on the stand column, a connecting plate mounted on the stand column and at least two drilling units; each drilling unit comprises a slider, a first connecting rod, a second gear and a drill rod; the connecting plates are hinged with the sliders through second connecting rods with equal lengths; the clamping mechanism comprises a mounting plate, a first drive device and clamping devices symmetrically arranged at two ends of the mounting plate; each clamping device comprises a bracket, a first rotating shaft and a clamping unit, the first rotating shaft is horizontally and rotationally mounted on the bracket, and the clamping unit is mounted on the first rotating shaft; the first drive device is in transmission connection with the first rotating shafts through transmission mechanisms. The device can drill multiple holes in the same steel tube, and the product quality is high.

The invention provides a multi-angle drilling device for a vehicle pipe fitting. A clamping mechanism comprises two clamping devices symmetrically arranged, wherein each clamping device comprises a first rotating shaft, a supporting rod, a first supporting plate and a second supporting plate; the supporting rod is mounted on the first rotating shaft, and the first supporting plate and the second supporting plate are symmetrically mounted on the supporting rod and used for supporting the vehicle pipe fitting; a controller is connected with the first rotating shaft and used for controlling the first rotating shafts to rotate, and the surfaces of the first supporting plate and the second supporting plate are respectively jointed with the inner wall of the vehicle pipe fitting. A drilling mechanism comprises a plurality of drilling heads arranged in parallel, wherein the controller is connected with the drilling heads and used for controlling the drilling heads to displace in the vertical direction of the supporting rod. A laser displacement sensor capable of detecting the displacement of the drilling heads is arranged at the end part of the first supporting plate and connected with the controller. The multi-angle drilling device disclosed by the invention can drill holes at different angles in the same vehicle pipe fitting, a plurality of holes can be processed in the same pipe fitting at a time, the multi-angle drilling device has the advantages of being accurate in positioning, high in accuracy, high in drilling efficiency, good in drilling effect and high in product quality, and deflection does not exist.

The invention relates to an automatic SUSAN (Smallest Univalue Segment Assimilating Nucleus) focusing method for a video monitoring system, which is used for maintaining a position of an optical lens invariable, and adjusting a target surface position of an image detector to an optimal imaging position along an optical axis. The method comprises the following steps that an improved SUSAN edge extraction algorithm is adopted to serve as a definition evaluation function in an automatic focusing process, and an adaptive variable step size hill climbing algorithm is adopted to serve as an optimal definition value position searching algorithm in the automatic focusing process. As an SUSAN operator is improved to serve as the definition evaluation function in the automatic focusing process, the automatic SUSAN focusing method for the video monitoring system has good unimodality, unbiassedness and keenness, and also has good noise immunity and good real time. When the method is applied to automatic focusing in the video monitoring system, the automatic focusing of the system can be realized quickly and accurately.

The invention discloses a non-aliasing reconstruction method of high-speed leaf undersampled leaf apex vibration signals. The method comprises the following steps that (1) a leaf apex timing signal acquisition system is used for obtaining undersampled leaf apex vibration signals, (2) the frequency band range of high-speed leaf vibration performance is determined, (3) leaf apex vibration signals are reconstructed for the first time based on the Shannon sampling theorem, (4) proper wavelet packet decomposition layer numbers are determined to enable the assigned frequency band range is consistent with one frequency band after wavelet packet decomposition, (5) signals in the assigned frequency band range are reconstructed again from the reconstructed signals hat(z)[n] at the first time using wavelet packets, (6) the coefficients of wavelet packets except for the Rth wavelet packet are all set to be zero, and the traditional wavelet packet reconstruction algorithm is utilized for reconstructing signals in the frequency band range of [f0-B0/2, f0+B0/2]. The non-aliasing reconstruction method is simple in process and easy to realize, reconstructed signals are not deflected and not in aliasing, and real and reliable high-speed leaf vibration signals can be provided.

The invention provides an undersampled leaf apex timing vibration signal reconstruction method and a device thereof. The method comprises the steps of (1) acquiring the displacement sampling data of a non-uniform blade end based on a blade end timing vibration measurement system; (2) determining the vibration characteristics of a high-speed blade and the frequency band range of the high-speed blade; (3) based on the periodic non-uniform sampling theory, completing the interpolation reconstruction for the vibration signal of the blade. The vibration displacement is acquired by a first blade end timing sensor and a second blade end timing sensor, wherein the first blade end timing sensor and the second blade end timing sensor are arranged in a casing. Based on the method, reconstructed signals are agonic and non-biased. Meanwhile, only by means of two blade end timing sensors, corresponding data can be acquired. In this way, not only data can be acquired completely and accurately, but also the cost is effectively reduced.

The invention provides an inhomogeneous undersampled blade end timing vibration signal reconstruction method and device, and the method comprises the following steps: 1), obtaining inhomogeneous blade end displacement sampling data through employing a blade end timing vibration measurement system; 2), determining the vibration characteristics and frequency band range of a high-speed blade; 3), achieving the interpolation reconstruction of a blade vibration signal based on a periodic inhomogeneous sampling principle. The method causes no deviation and aliasing during signal reconstruction.

Disclosed is an LED drive circuit, which is low cost, small, and capable of efficiently eliminating a through current between a plurality of LED groups. The LED drive circuit has: a rectifier; a first LED group that includes a plurality of LEDs; a second LED group that includes a plurality of LEDs; a connecting unit, which connects the first and the second LED groups to the rectifier in series, or connects the first and the second LED groups to the rectifier in parallel; a control unit, which controls the connecting unit, and switches the connection of the first and the second LED groups to the rectifier from the parallel connection to the series connection; and a diode, which is disposed between the first LED group and the second LED group, and which eliminates the reverse direction current.

The invention relates to the technical field of photoelectron, in particular to a plane-configured organic infrared or ultraviolet photovoltaic semiconductor detector which comprises a substrate, an organic infrared or ultraviolet photovoltaic semiconductor, a low work function electrode and a high work function electrode. The detector is characterized in that the low work function electrode and the high work function plane are in the same plane. The plane-configured organic infrared or ultraviolet photovoltaic semiconductor detector technology of the invention can be applied to manufacture a plane-configured organic infrared photovoltaic semiconductor detector and a plane-configured organic ultraviolet photovoltaic semiconductor detector. Compared with the optical waveguide detector, the detector of the invention has the advantages of fast response speed, low power dissipation, easy formation of array, no need of offsetting and the like. In addition, the detector of the invention has the characteristics of low cost, easy realization of controllable electrical resistivity of large area photosensing materials, no need of refrigeration, realization of flexible processing and the like, thus having important potential application values in the military field, the civil field and some specific fields.

The invention discloses an indoor available comprehensive tubing string mechanics experiment platform to solve the problem of unable accurate synchronous application of pulling, pressing, bending, twisting and other loads of present indoor experiment devices. The platform integrates loading and test mechanisms of pulling, pressing, bending, twisting and other different loads, and eliminates mutual influences of pulling and twisting combination load in a bearing isolation manner, and a test terminal collects and processes a pulling and twisting load signal in a double-sensor merging output mode. The platform can realize synchronous loading and testing of pulling, bending, twisting and other loads, and allows the real deformation of an oilfield tubing string under a given load condition to be obtained through scaling all parts of the oilfield tubing string in the practical use process.

The present invention provides a method and a device for galvanising substrates and solar cells. The device comprises a reservoir (12) having an electrolytic coating liquid (13), a lower transport device (40), and an upper transport device (30) for substrates (1), where a transport device comprises mechanisms (20,21,24,32) for contacting and connecting the substrates (1) to a voltage source (21). At least one transport device (30) is provided with at least one tampon (41) which is made of a absorbent material (44). Furthermore, the mechanisms are equipped so the tampon (41) absorbs the electrolytic coating liquid (13) and contacts with the surfaces of the substrates (1) to be plated.

The invention discloses a strip automatic assembly device for a packing machine and an assembly method thereof. The device comprises a base; and the base is provided with a buffer part, a first drum and a second drum. The device further comprises a strip cutting mechanism, a strip assembly mechanism and an assembly reinforcing mechanism; the buffer part comprises multiple fixed pulleys and movablepulleys; the movable pulleys can slide up and down along chutes formed in a support panel; the strip cutting mechanism comprises a cutting cylinder and a cutter; the cutter is arranged perpendicularto strips; the strip assembly mechanism comprises a first roller and a second roller; and the assembly reinforcing mechanism comprises a metal roller, a rubber roller and a reinforcing cylinder. The device further comprises a strip ending sensor, an abnormal film breakage detecting sensor, a pattern detecting sensor, an assembly failure sensor and a buffer detecting sensor for acquiring signals; and the acquired signals are sent to a PLC. The device can achieve precise and reliable assembly of the strips, and achieves a certain intelligence level.

The invention discloses a medical care transfer bed which comprises a bed frame, as well as a rotating shaft and a push rod which are driven by a power supply and arranged in parallel to the two side edges of the bed frame respectively; a plurality of fixed grooved rails opened upward are axially arranged between the rotating shaft and the push rod at intervals; gaps are longitudinally formed along the bottoms of the fixed grooved rails; guide rails are longitudinally arranged on the two sides of the gaps; and a movable grooved rail is longitudinally arranged in each fixed grooved rail. The bed has the advantages that the fixed grooved rails arranged at intervals are distributed according to a physiologic curve of a human body, namely at a neck, a waist, thigh joints, knee joints and ankle joints; the movable grooved rails move back and forth on the fixed grooved rails; the movable grooved rails can be divided into upper layers and lower layers capable of being braced and falling by support arms with rollers arranged at the lower ends, so that a purpose of transferring a patient lightly, flexibly, conveniently, quickly and appropriately is achieved; the pain of the patient and the burden of nursing personnel are reduced; and simultaneously, eccentric weight and vibration do not happen during transfer of the patient.

The invention provides a test reference system of a crank dynamometer. The test reference system comprises a main frame comprising a vertical rod, wherein a chain crank mounting system is installed atthe top portion of the main frame, a crank is installed on the chain crank mounting system when test is performed, and a handing rod is hung at the crank end; a weight set comprising a plurality of mutually stacked weights, the weight at the uppermost end sleeves and is hung at the bottom end of the handing rod, and hanging structures are arranged to allow the weights to sleeve and hang with eachother; a lifting table on which the weight set is located; and an electric control unit configured to drive a motor. The whole device is reasonable and compact in structure design and provides the automation design idea in the industry for the first time, the motor drives the lifting table to lift and go down to achieve holding and unloading weights with different weights so as to apply forces tothe cranks by different weights to allow the crank to be deformed and truly simulate the treading of the crank by employing two feet when people perform outdoor riding. The test reference system of the crank dynamometer cannot depend on carrying by manual work to increase and decrease the weights so as to improve the efficiency.

The invention belongs to the field of textile machinery machining tools, in particular to a drill clamp for a connecting rod rest of a needle core bed. The drill clamp comprises a rectangular body of which at least one end is provided with an opening; the periphery of the body comprises a main surface, a back surface and two side surfaces; a supporting plate is arranged in the body; a bush plate is arranged at the opening; the two side surfaces of the body are provided with longitudinal clamping devices, wherein the wall of at least one side surface is provided with an axial positioning mechanism; the main surface of the body is provided with a positioning device which is vertical to both the longitudinal direction and the axial direction in space; the back surface is provided with a plurality of through drill holes and a support structure; the bush plate is provided with a clamp body; the clamp body is extended into the body from the outside of the bush plate; and the clamping devices act on the clamp body and form coordination. The drill clamp for the connecting rod rest of the needle core bed has the advantages of forming precise, firm and stable positioning and clamping for the connecting rod rest of the needle core bed, so that hole drilling, hole expanding and reaming can be performed on a drilling machine rapidly and stably; and therefore, production efficiency and machining precision are improved.

The invention discloses an outer wire winding machine for cylindrical workpieces. The outer wire winding machine comprises a control system, a wire discharge mechanism (100) and a cylindrical workpiece turning mechanism (200); the cylindrical workpiece turning mechanism (200) is arranged on one side of the outer wire winding machine; the wire discharge mechanism (100) comprises a trolley (130) and a wire discharge portion arranged on the trolley (130); the cylindrical workpiece turning mechanism (200) comprises a driving device and a cylindrical workpiece fixing device. The outer wire winding machine has the advantages that the outer wire winding machine can be used for winding wires on the outer surfaces of the cylindrical workpieces with different lengths, different diameters, identical or different top diameters and root diameters or regularly or irregularly changing diameters among top ends and root ends, and the diameters of the cylindrical workpieces are theoretically unconstrained; the cylindrical workpieces can be transferred conveniently after the wires are wound on the outer surfaces of the cylindrical workpieces, so that the work efficiency can be improved; labor and materials can be saved, the work efficiency can be improved, the wires are wound spirally, uniformly, reasonably and tightly without deviation, fastening processing can be omitted, accordingly, the production cost can be reduced, the production time can be saved, and the quality of products can be guaranteed.

The invention relates to a Chinese medicinal composition preparation for treating childhood asthma and a preparation method thereof. The preparation method comprises the following steps: taking radix pseudostellariae, prepared rhubarb and Chinese caterpillar fungus according to the mass ratio of 10:3:5, crushing the raw materials into 120-mesh fine powder respectively, and mixing the fine powder; taking kuh-seng, Chinese ephedra, almond, peach kernel, Platycodon grandiflorum, periostracum cicadae, baikal skullcap root, Pinellia ternate, dwarf lilyturf root, Paeonia lactiflora, prepared rehmannia rhizome, Chinese yam, Schisandra chinensis and liquorice according to the mass ratio of 10:6:10:10:10:3:10:6:10:10:10:10:5:6, using water to decoct the medicaments for three times, mixing liquid medicines, performing precipitation for impurity removal, and concentrating the obtained product into ointment; uniformly mixing and stirring the crushed fine powder and the concentrated ointment according to the mass ratio of 1:1, and drying the mixture; and crushing and watering dried powder, processing pills, and drying the pills to obtain the medicaments. The Chinese medicinal composition preparation for treating the childhood asthma has the efficacies of treating both principal and secondary aspect of disease, clearing lung, eliminating phlegm and relieving a cough, and dispelling wind-evil, relieving spasm, stopping allergy and relieving asthma, has no cold and hot drug nature, is suitable for treatment of paracmasia of various childhood asthma, and has the advantages of quick response, high cure rate and no side effect.

The invention provides a multifunctional testing loading detecting machine for a horizontal sleeve compensator and aims to solve the problems that no special detecting testing machine is provided for a domestic heat supply compensator, detection of related data is carried out only by universal detection equipment and inaccuracy of the data and detection parameters is easy to cause. The multifunctional testing loading detecting machine has the technical key points that a computer control system is connected with a testing loading platform; and a hydraulic station and a water pressure regulation control device are respectively fixed at both sides of the testing loading platform. The multifunctional testing loading detecting machine has the positive effects of large testing space, wide application and multifunctionality. The multifunctional testing loading detecting machine not only can be used for carrying out fatigue test on a single (double) sleeve compensator, but also can be used for carrying out unidirectional stretching and compressing test on the sleeve compensator, an expansion joint, a bellows and the like as required. The multifunctional testing loading detecting machine also has the characteristics of high control degree, low cost, stability, reliability, strong practicality and the like.

The invention relates to the field of molecular biology, and relates to a circular RNA detection method and kit. The circular RNA detection method comprises the following steps: S1, primer design; S2,reverse transcription reaction: taking 0.1-1 [mu]g of extracted total RNA, adding N6 Random Primer and RNase-Free H2O, performing mixing to obtain a reaction solution I, adding 5 x HT RT Buffer intothe reaction solution I, adding HT M-MLV Mix into the reaction solution I, and finally adding RNase-Free H2O to obtain cDNA; and S3, HS PCR amplification: performing qPCR detection by using the FSjodPrimers obtained in the step S1, 2 x SNP Taq Mix, 50 x ROX Mix *, the RNase-Free H2O and the cDNA obtained in the step S2.

The invention provides a portable type pathogenic bacterium rapid detection system and a portable type pathogenic bacterium rapid detection device. The portable type pathogenic bacterium rapid detection system is characterized in that a power supply output end of a power supply unit is connected with a power supply input end of a nucleic acid extraction unit; the power supply output end of the power supply unit is further connected with the power supply input end of a first control chip; a constant-temperature signal transmission end of the first control chip is connected with a signal transmission end of a constant-temperature control unit; the signal transmission end of a laser detection unit is connected with a laser signal transmission end of the first control chip; the power supply input ends of the constant-temperature control unit and the laser detection unit are connected with the power supply output end of the power supply unit; the signal output end of the first control chip is in communication connection with the signal input end of a second control chip through a serial port; the signal output end of the second control chip is connected with the signal input end of a man-machine interaction module; and the power supply unit is connected with the power supply input end of the second control chip and the power supply input end of the man-machine interaction module respectively. The portable type pathogenic bacterium rapid detection system and the portable type pathogenic bacterium rapid detection device have economical efficiency and portability, and the detection is accurate and efficient.

The invention discloses a portable quick detection method for pathogenic bacteria. The portable quick detection method comprises the following steps: step 1, adding magnetic beads into a to-be-detected substance, putting the to-be-detected substance into a heating groove, heating the to-be-detected substance at a constant temperature through a constant temperature control unit, putting a nucleic acid extraction module into the to-be-detected substance, and sucking out the magnetic beads adsorbing nucleic acid according to magnetic regions of the nucleic acid extraction module; step 2, heating the to-be-detected substance through a heater; step 3, emitting laser by a laser emitter, enabling laser to pass through laser via holes and irradiate on the to-be-detected substance, enabling a laser sensor to receive the laser from the laser via holes, analyzing the laser through a control circuit board, and displaying detection data of the to-be-detected substance on a display module. The portable quick detection method is economical, portable, and accurate and efficient in detection.

The invention discloses an aerosol generating product containing blasting beads. The aerosol generating product comprises a pipe fitting (1), and a filter tip section (2), a cooling section (4) and anaerosol generating section (5) which are positioned in the pipe fitting (1) and are sequentially arranged from a near lip end to a far lip end, an accommodating hole (21) extending in the radial direction is formed in the filter tip section (2); and blasting beads are accommodated in the accommodating hole (21). The containing hole (21) for containing the blasting bead is formed in the filter tipsection (2) in the axial direction in advance, the blasting bead can be prevented from deviating in the filter tip section (2), it is guaranteed that a consumer can accurately locate the position ofthe blasting bead when pinching the blasting bead, deviation is avoided, the product percent of pass is increased, and the consumer experience is guaranteed. Besides, the filter tip section (2) is notonly limited to tows capable of directly wrapping blasting beads, but also can be prepared from materials such as silica gel through extrusion molding of a hot melting grinding tool, so that the selection range of a filter material and a preparation method of the filter tip section (2) is expanded.

The invention discloses a center-adjustable connecting clamp for stainless steel pipeline welding connection. The center-adjustable connecting clamp for stainless steel pipeline welding connection comprises a base, wherein a top plate is fixedly connected onto the base through two supporting plates; a welding mechanism for welding a stainless steel pipeline is arranged on the top plate; a pair ofsupporting semi-circular rings are fixedly connected onto the base through two supporting frames; a pair of installation semi-circular rings are arranged in the two supporting semi-circular rings; a supporting mechanism used for supporting the pair of installation semi-circular rings is arranged in the pair of supporting semi-circular rings; two installation plates are fixedly connected onto the inner wall of the supporting semi-circular ring on the left side; and a rotating mechanism used for enabling the pair of installation semi-circular rings to rotate is arranged on the two installation plates. The center-adjustable connecting clamp for stainless steel pipeline welding connection provided by the invention is reasonable in structure and capable of aligning stainless steel pipelines with different thicknesses, so that the stainless steel pipelines are kept in the center all the time, welding is facilitated, meanwhile, the stainless steel pipelines can be driven to rotate, all partsof the stainless steel pipelines can be welded conveniently, and the welding efficiency can be improved.

The invention relates to a geomechanics model layering compaction air drying manufacturing and grooving embedding tester method, comprising the following steps of: (1) determining the pressure required for compacting a model body; (2) paving materials, evenly mixing materials in the proportion and evenly paving in a model test device in a layering way after weighing; (3) compacting, performing layering compaction on the model materials evenly paved in the step (2) according to the pressure determined in the step (1); (4) air drying the compacted model materials in a layering way; (5) grooving embedding tester, and embedding the layering embedding tester in compaction air-drying formed model body according to the tester; and (6) repeating the steps (2) to (5) until the whole model body is manufactured. The invention has the characteristics that the imporosity and uniformity of the model body are ensured, the whole model manufacturing process is efficiency, rapid and convenient, the tester can be arranged on an accurate position without deviation and the model manufacturing process and the test technical level are improved.