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On-line fast detection method for impregnation degree of resin in fiber cloth
ActiveCN101403677AGuarantee product qualityDetection time savingSurface/boundary effectScattering properties measurementsFiberDiffuse reflection
The invention discloses an on-line quick detection method used for detecting the dipping degree of resin into fiber cloth relates to the detection method for detecting the dipping degree of resin into fiber cloth. The invention solves the problems that the detection to the dipping degree of resin into fiber cloth costs both time and labor during the processing of pre-dipping materials and the quick detection cannot be realized. The method is as follows: 1. a plurality of pre-dipping material samples with the dipping degree of insufficient dipping, excellent dipping and over dipping are selected respectively; 2. the dipping degree of each pre-dipping material sample is calculated; 3. a near-infrared diffuse reflection spectrometer is adopted to collect the same zone on each pre-dipping material sample to obtain a plurality of spectrum information of each pre-dipping material sample; 4. the pre-dipping material sample database is established; 5. correction sample collections are established; 6. the quantitative analysis model for the resin against the fiber cloth is established and the model is optimized to get the optimal correction model; and 7. the optimal correction model is adopted to predict the dipping degree of the resin into the fiber cloth. The invention is suitable for the detection to the dipping degree of different reinforced fibers and resins.
Owner:HARBIN INST OF TECH
Automatic motor load detector
InactiveCN104730460ARealize automated detectionImprove detection efficiencyDynamo-electric machine testingControl mannerElectric machine
The invention discloses an automatic motor load detector. The automatic motor load detector comprises a worktable, an air pressure detecting system, a current detecting system, a motor fixing mechanism and an air pressure detecting tool, wherein the motor fixing mechanism and the air pressure detecting tool are arranged on the worktable, the motor fixing mechanism can fix a motor, enables a motor shaft to rotate and is provided with two connecting terminals connected with a positive electrode and a negative electrode of the motor respectively, the air pressure detecting system and the current detecting system are connected with the connecting terminals in a control manner and used for detecting current and no-load pressure of the motor, the air pressure detecting tool comprises a fan blade and a U-shaped frame, a pushing air cylinder is mounted on the worktable to control moving of the U-shaped frame by a support, the fan blade is arranged in a U-shaped opening of the U-shaped frame, the support is provided with a support rod inserted into the U-shaped opening and the fan blade, and the motor shaft is axially connected with the fan blade pushed by the pushing air cylinder and drives the fan blade to rotate. The automatic motor load detector is multifunctional, high in detecting efficiency and labor saving.
Owner:ZHEJIANG WANGUAN MOTOR
Detection apparatus for rotational flexibility of lifting hook and lifting hook structure
ActiveCN103101837AFlexibility in rotationJudgment of rotational flexibilityLoad-engaging elementsPower unitControl theory
The invention discloses a detection apparatus for rotational flexibility of a lifting hook and a lifting hook structure, belonging to the technical field of machinery. According to the invention, the technical problem that accurate measurement of rotational flexibility of a lifting hook cannot be realized in the prior art is overcome. The detection apparatus for rotational flexibility of the lifting hook comprises a torque detection element, a power unit and a connecting piece, wherein the torque detection element is respectively in fixed connection with the connecting piece and a power output part of the power unit at least in a circumferential direction of a rotation axis of the connecting piece, the power output part of the power unit is used for applying torque on the torque detection element so as to allow the torque detection element to rotate, the rotating torque detection element drives the connecting piece to rotate around the rotation axis of the connecting piece, the torque detection element is used for detecting torque, and the connecting piece is in fixed connection with a rotating shaft part of the lifting hook in the circumferential direction of the rotation axis of the connecting piece. The detection apparatus for rotational flexibility of the lifting hook provided by the invention is arranged in the lifting hook structure. The detection apparatus is used for detecting rotational flexibility of the lifting hook.
Owner:XCMG CONSTR MACHINERY
Quality detection device for shipbuilding steel plate butt-jointed seams
InactiveCN102564703ASimple detectionLow costDetection of fluid at leakage pointSteel platesWeld seam
The invention provides a quality detection device for shipbuilding steel plate butt-jointed seams, which comprises a detection tank, a detection tank hold-down mechanism, an alcohol jar, an alcohol detector, and an alarm. A seal rubber ring is arranged at the top of the detection tank connected with the alcohol jar through an air pipe. The detection tank hold-down mechanism comprises a support base board, a jack and clamping boards arranged at two ends of the support base board. The detection tank is arranged at the bottom of the shipbuilding steel plate butt-jointed seams, the support base board is arranged below the detection tank, the clamping boards at the two ends of the support base board are clamped on the shipbuilding steel plates, the jack is arranged between the support base board and the detection tank, the seal rubber ring is pressed on the bottom face of the shipbuilding steel plates which are located on two sides of one butt-jointed seam, the alcohol detector directly faces the top of the welding seam and is connected with the alarm through a signal line. By mean of the quality detection device for the shipbuilding steel plate butt-jointed seams, welding seam detection can be achieved before assembling and after butt welding of the shipbuilding steel plates, the detection is more simple and energy-saving, and the increased rework cost caused by welding seam defects after assembling can be effectively reduced.
Owner:CHONGQING SHENGZHU SCI&TECH DEVCO
Online device for rapidly detecting quality indicators of prepreg tape
ActiveCN101614660AEasy to operateSafe method of operationColor/spectral properties measurementsEngineeringData detection
The invention discloses an online device for rapidly detecting the quality indicators of a prepreg tape, and relates to a device for detecting the quality indicators of the prepreg tape. The invention is to solve the problem of time-consuming, energy-consuming and large reagent-consuming nature of the analysis results in the existing prepreg tape detection method. A first guide roll and a second guide roll are respectively fixed on a first bracket in a vertical manner; a third guide roll and the second guide roll are arranged vertically and fixedly connected with a support plate which is vertically fixed on the first bracket, a fourth guide roll and the third guide roll are arranged in a top and bottom staggered manner, a probe is arranged at one side of the prepreg tape to be tested, the head part of the probe is opposite to the prepreg tape to be tested, a reflecting plate is arranged at the other side of the prepreg tape to be tested and opposite to the probe, the input end of the probe is connected with a near infrared spectrometer through optical fiber, and the near infrared spectrometer is connected with a computer. The invention can acquire the quality information of the prepreg in a online real-time manner, rapidly reflects the changes of each quality indicator in the prepreg tape to be tested and data detection and production process are carried out synchronously, and the detection results are accurate.
Owner:HARBIN INST OF TECH
Wiring board
ActiveCN105322328ASealing is not affectedEasy to detectCoupling contact membersCouplings bases/casesEngineeringPower strip
The invention discloses a wiring board. The wiring board comprises a shell and is characterized in that a conductive rod is arranged on a shell, one end of the conductive rod is exposed out of the shell, a slot is arranged at one end, exposed out of the shell, of the conductive rod, the other end of the conductive rod passes through the shell and is electrically connected with an energized part in the shell, a detection through hole is formed on the side wall of the shell and used for one end of the conductive rod to be inserted into the shell, a metal sleeve ring is embedded into the detection through hole, the outer side wall of the metal sleeve ring and the inner wall of the detection through hole are fixed and sealed, a rubber block is arranged in the metal sleeve ring, a central through hole is formed in the rubber block and used for the conductive rod to insert, the rubber block is accommodated between the conductive rod and the metal sleeve ring after compressed, and when the conductive rod is separated from the rubber block by pumping, the rubber block is expanded towards a radial direction of the rubber block until the central through hole is closed. The invention provides the wiring board, energized detection can be carried out in no need of plug insertion, therefore, the wiring board is convenient to operate, the labor intensity is low, and the detection efficiency is high.
Owner:重庆新锐科技服务有限公司
Noise detection system and noise detection method
ActiveCN108398182ATime-saving detection processThe test result is accurateSubsonic/sonic/ultrasonic wave measurementEngineeringNoise detection
The present invention provides a noise detection system and a noise detection method. The noise detection system and the noise detection method are used for detecting the noises of equipment. The noise detection system includes slide rails and detecting devices capable of moving on the slide rails; and each detecting device is used for acquiring noise information generated by the equipment when moving along the corresponding slide rails. With the noise detection system and noise detection method of the invention adopted, the various noise indexes of the outdoor unit of an air conditioner as well as the sources and propagation characteristics of noises and abnormal sound of the outdoor unit of the air conditioner are intelligently detected; a detection process is time-saving and labor-saving; since the detection process no longer needs to be judged and diagnosed manually, detection results are more accurate; and therefore, a more reliable basis can be provided for the optimization of the outdoor unit of the air conditioner in later stages.
Owner:GREE ELECTRIC APPLIANCES INC OF ZHUHAI
Ultrasonic probe operating device with pressure sensor
ActiveCN110426452AEasy to operateAccurateAnalysing solids using sonic/ultrasonic/infrasonic wavesElectricityBiomedical engineering
The invention discloses an ultrasonic probe operating device with a pressure sensor and belongs to the field of ultrasonic flaw detection auxiliary devices. The ultrasonic probe operating device witha pressure sensor is characterized by comprising a probe seat, the probe seat is provided with base and a connecting block in slippage with the base, the base is provided with a mounting through holeused for mounting a probe, the side wall of the shell is in threaded connection with an adjusting bolt, the adjusting bolt penetrates through the side wall of the shell and extends into the mounting through hole, the connecting block is provided with a pressure detecting device, the pressure detecting device comprises a pressure sensor for detecting the pressure between the base and the connectingblock, a controller electrically connected with the pressure sensor, and a display screen electrically connected with the controller. The ultrasonic probe operating device in the invention has the effect of displaying the pressure between the probe and a workpiece.
Owner:山东亿赛工程检测有限公司
Photovoltaic junction box with detection holes
InactiveCN104283508ASecurity checkQuick checkPhotovoltaic monitoringPhotovoltaic energy generationEngineeringJunction box
The invention provides a photovoltaic junction box with detection holes and relates to the technical field of photovoltaic accessories. The photovoltaic junction box comprises a box body and a box cover buckling the box body. A wire holder is arranged inside the box body and is connected with a diode, two cable holes are formed in the side wall of the box body, and a cable penetrates into each cable hole and is electrically connected with the wire holder. The wire holder is fixedly connected with two detection elastic pieces, each detection piece is correspondingly connected with the cable in each cable hole, the box cover is provided with two detection holes, and the two detection holes are and the two detection elastic pieces are correspondingly arranged. By means of the photovoltaic junction box, detection can be conducted without detaching the cables, detection is safe, and time and labor are saved.
Owner:WUHAN FANGYU ENERGY MANAGEMENT
Probe combination apparatus for testing strength of concrete
InactiveCN105181796AAchieve cleaningRealize automatic applicationAnalysing solids using sonic/ultrasonic/infrasonic wavesFuel tankEngineering
The invention discloses a probe combination apparatus for testing the strength of concrete. The apparatus comprises a box body (11), guide rod slots (10) for two parallel guide rods (1) to traverse penetrate through the box body (11), and the upper ends and the lower ends of the guide rods (1) are movably fixed on the box body (11); and a calibrated scale (9) is arranged in the length direction of each of the guide rod slots (10), the box body (11) is symmetrically provided with grease boxes (4), the oil outlet of each of the grease boxes (4) is connected with the oil inlet of a probe clamp (8) arranged at the guide rod (11) at the same side through a guide tube (7), and a probe (12) is arranged in the probe clamp (8). The probe combination apparatus for testing the strength of concrete has the advantages of adjustable and quantifiable probe spacing, no pollution, automatic smearing of grease, and accurate and reliable result of the measured strength and integrity of a concrete member.
Owner:HOHAI UNIV
Automatic measuring device for insulation of multi-core cable
ActiveCN109725243ALabor-saving inspection processLabor-saving detectionTesting circuitsMulticore cableMeasurement device
An automatic measuring device for insulation of a multi-core cable comprises a five-way time-sharing switching circuit, a five-way short-circuit conversion circuit and a transfer switch interface circuit. The five-way time-sharing switching circuit outputs a five-way time-sharing switching signal to an input end of the five-way short-circuit conversion circuit. The five-way short-circuit conversion circuit outputs a nine-way time-sharing short-circuit pulse signal for controlling the transfer switch interface circuit to perform time-sharing switching. The nine-way time-sharing short-circuit pulse signal output end of the five-way short-circuit conversion circuit is connected to the input end of the transfer switch interface circuit. The transfer switch interface circuit outputs the insulation resistance between the different cores to the input end of a detection bridge for the insulation resistance between the cores. The output end of the detection bridge for the insulation resistancebetween the cores is connected to a signal detection and amplifier circuit. The output end of the signal detection and amplifier circuit is connected to the input end of a result storage and display circuit. According to the automatic measuring device for the insulation of the multi-core cable, the multi-channel electronic automatic scanning detection, electronic boosting and automatic logic operation are adopted, so that one-time detection without replacement of each cable in the middle can be completed.
Owner:HUBEI JIANGSHAN HEAVY IND
Brake outer circle runout detection mechanism
ActiveCN107328350BEliminate gapsImprove detection accuracyMechanical roughness/irregularity measurementsBrakeControl engineering
The invention discloses a brake excircle runout detection mechanism, and relates to an excircle runout detection mechanism, which comprises an expansion core positioning mechanism, a runout detection mechanism, and a taper sleeve swinging base. The expansion core positioning mechanism is connected with an inner hole of a work piece, and the runout detection mechanism is contacted with the excircle of the work piece, and in addition, the bottom part of the expansion core positioning mechanism is disposed on the taper sleeve swinging base. The expansion core positioning mechanism comprises a fixed core pressing plate, a spring expansion sheet, a positioning bottom plate, and a core shaft. The fixed core pressing plate and the positioning bottom plate are sequentially connected with the core shaft in a sleeved manner, and the positioning bottom plate is fixedly connected with the core shaft by a fastening member. The spring expansion sheet is disposed between the fixed core pressing plate and the positioning bottom plate, and the upper end of the core shaft is fixedly disposed on the fixed core pressing plate after being pressed tightly by the fastening member. The brake excircle runout detection mechanism is used to eliminate a gap between the positioning core shaft and the brake bottom plate, and has advantages of high detection precision, high production efficiency, reliable structure, convenient and fast use, wide application range, and easy popularization and application.
Owner:FANGSHENG AXLE LIUZHOU
Rear embedded part anti-pulling strength detection device for building detection
InactiveCN111795896ARealize pullout strength testingHigh precisionMaterial strength using tensile/compressive forcesJackscrewElectrical and Electronics engineering
The invention discloses a rear embedded part anti-pulling strength detection device for building detection. The device comprises a connecting base; a jack is fixedly mounted in the middle of the upperend of the connecting base; a pressure gauge is fixedly connected to the middle of the left end of the jack; a hydraulic rod is arranged at the right end of the jack; the output end of the jack penetrates through the connecting base, extends to the position below the connecting base and is fixedly connected with a connecting disc; supporting legs are fixedly connected to the four corners of the lower end of the connecting base; a limiting device is fixedly installed among the four supporting legs jointly; four pulling chains are movably connected to the outer surface of the connecting disc atequal intervals; a lifting disc is movably connected to the lower ends of the four pulling chains jointly; and a hook device is fixedly connected to the middle of the lower end of the lifting disc. According to the rear embedded part anti-pulling strength detection device for building detection, multi-angle anti-pulling capacity detection can be conducted on a rear embedded part, the modes are diversified, labor is saved, abrasion is resisted, and detected data is more diversified.
Owner:夏喜明
A concrete slump detection device and its detection method
ActiveCN107449893BAvoid destructionLabor-saving detectionFlow propertiesMaterial testing goodsEngineeringMoisture sensor
Owner:海南方能测试技术有限公司
Detection method of oil type and composition of spilled oil of sea surface crashed plane based on alternating penalty trilinear decomposition
The invention discloses a detection method of oil type and composition of spilled oil of sea surface crashed plane based on alternating penalty trilinear decomposition. Original fluorescence spectrumdata of N samples of aviation kerosene and lubricating oil under different volume ratio configurations is acquired through a fluorescence spectrophotometer. Delaunay interpolation correction is executed for the obtained original fluorescence spectrum data, and corrected three-dimensional fluorescence spectrum data is obtained. The three-dimensional fluorescence spectrum data is processed through acore consistency diagnostic function, and the number of compositions needed when parsing the three-dimensional fluorescence spectrum data through the alternating penalty trilinear decomposition (APTLD) algorithm is obtained. The three-dimensional fluorescence spectrum data is processed through the APTLD algorithm, load matrixes A, B and C of pure oil and mixed oil of the aviation kerosene and lubricating oil are obtained. The load matrixes B and C of the pure oil of the aviation kerosene and lubricating oil and the load matrixes B and C of the mixed oil of the aviation kerosene and lubricating oil are subjected to data fitting, thus, a spectrum fitted curve under a corresponding relation of fluorescence relative intensity and excitation and emission wavelength of the aviation kerosene andlubricating oil is obtained, and degree of correlation of each spectrum curve is judged through root-mean-square error (RMSE) and a correlation function corrcoef.
Owner:YANSHAN UNIV +2
Detection apparatus for rotational flexibility of lifting hook and lifting hook structure
ActiveCN103101837BFlexibility in rotationJudgment of rotational flexibilityLoad-engaging elementsEngineeringControl theory
The invention discloses a detection apparatus for rotational flexibility of a lifting hook and a lifting hook structure, belonging to the technical field of machinery. According to the invention, the technical problem that accurate measurement of rotational flexibility of a lifting hook cannot be realized in the prior art is overcome. The detection apparatus for rotational flexibility of the lifting hook comprises a torque detection element, a power unit and a connecting piece, wherein the torque detection element is respectively in fixed connection with the connecting piece and a power output part of the power unit at least in a circumferential direction of a rotation axis of the connecting piece, the power output part of the power unit is used for applying torque on the torque detection element so as to allow the torque detection element to rotate, the rotating torque detection element drives the connecting piece to rotate around the rotation axis of the connecting piece, the torque detection element is used for detecting torque, and the connecting piece is in fixed connection with a rotating shaft part of the lifting hook in the circumferential direction of the rotation axis of the connecting piece. The detection apparatus for rotational flexibility of the lifting hook provided by the invention is arranged in the lifting hook structure. The detection apparatus is used for detecting rotational flexibility of the lifting hook.
Owner:XCMG CONSTR MACHINERY
A probe combination device for testing concrete strength
InactiveCN105181796BAchieve cleaningRealize automatic applicationAnalysing solids using sonic/ultrasonic/infrasonic wavesFuel tankUltimate tensile strength
The invention discloses a probe combination device for testing the strength of concrete, which is characterized in that it comprises: a box body (11), and a guide for passing through two parallel guide rods (1) runs through the box body (11). Rod groove (10), the upper and lower ends of the guide rod (1) are movable fixed on the box (11); the length direction of the guide rod groove (10) is provided with a scale (9), so A butter tank (4) is symmetrically arranged on the box body (11), and the oil outlet of the butter tank (4) is connected with the probe clip ( 8) is connected to the oil inlet, and a probe (12) is arranged in the probe clip (8). The invention provides a probe assembly device for testing the strength of concrete. The distance between the probes is adjustable, the probes can be quantified, there is no pollution, grease can be applied automatically, and the result when measuring the strength and integrity of concrete components is accurate and reliable.
Owner:HOHAI UNIV
A photovoltaic junction box with a detection hole
A photovoltaic junction box with detection holes, relating to the technical field of photovoltaic accessories, comprising a box body and a box cover fastened to the box body, the box body is provided with a terminal block inside, and the terminal block is connected with a diode. The side wall of the box body is provided with two cable holes, and a cable is passed through each cable hole, and each cable is electrically connected with the terminal block. Wherein, the terminal block is fixedly connected with two detection shrapnels, and each detection shrapnel is correspondingly connected with a cable in a cable hole; the box cover is provided with two detection holes, and the two detection holes are connected with the two detection holes. The shrapnel corresponds to the setting. The photovoltaic junction box of the present invention does not need to be disassembled for detection, is safe in detection, and saves time and effort.
Owner:WUHAN FANGYU ENERGY MANAGEMENT
An ultrasonic probe operating device with a pressure sensor
ActiveCN110426452BAccurateEasy to moveAnalysing solids using sonic/ultrasonic/infrasonic wavesEngineeringMechanical engineering
The invention discloses an operating device for an ultrasonic probe with a pressure sensor, which belongs to the field of auxiliary devices for ultrasonic flaw detection. The connecting block is moved, the base is provided with an installation through hole for installing the probe, the side wall of the housing is threaded with an adjustment bolt, and the adjustment bolt passes through the side wall of the housing and extends into the installation through hole, the The connection block is provided with a pressure detection device, and the pressure detection device includes a pressure sensor for detecting the pressure between the base and the connection block, a controller electrically connected with the pressure sensor, and a display screen electrically connected with the controller. The present invention has the effect of displaying the pressure between the probe and the workpiece.
Owner:山东亿赛工程检测有限公司
A wiring board and its electrification detection equipment
InactiveCN105322329BEasy to detectLabor-saving detectionSecuring/insulating coupling contact membersElectrical testingPatch panelElectricity
Owner:NINGBO RUIXIANG ELECTRICAL APPLIANCE
Noise detection system and noise detection method
ActiveCN108398182BTime-saving detection processLabor-saving detectionSubsonic/sonic/ultrasonic wave measurementNoise detectionNoise
The present invention provides a noise detection system and a noise detection method. The noise detection system and the noise detection method are used for detecting the noises of equipment. The noise detection system includes slide rails and detecting devices capable of moving on the slide rails; and each detecting device is used for acquiring noise information generated by the equipment when moving along the corresponding slide rails. With the noise detection system and noise detection method of the invention adopted, the various noise indexes of the outdoor unit of an air conditioner as well as the sources and propagation characteristics of noises and abnormal sound of the outdoor unit of the air conditioner are intelligently detected; a detection process is time-saving and labor-saving; since the detection process no longer needs to be judged and diagnosed manually, detection results are more accurate; and therefore, a more reliable basis can be provided for the optimization of the outdoor unit of the air conditioner in later stages.
Owner:GREE ELECTRIC APPLIANCES INC
a wiring board
ActiveCN105322328BSealing is not affectedEasy to detectCoupling contact membersCouplings bases/casesPower stripMetal
The invention discloses a wiring board, which includes a casing, and is characterized in that: a conductive rod is provided on the casing, one end of the conductive rod is exposed outside the casing, and a plug is provided on the end of the conductive rod exposed outside the casing. Slot, the other end of the conductive rod penetrates the housing and is electrically connected with the energized parts in the housing, and the side wall of the housing is provided with a detection through hole for inserting one end of the conductive rod into the housing; the detection through hole A metal collar is embedded inside, and the outer wall of the metal collar is fixed and sealed with the inner wall of the detection through hole. A rubber block is arranged in the metal collar, and a central through hole for the conductive rod to be inserted is arranged in the rubber block. The rubber block After being compressed, it is accommodated between the conductive rod and the metal collar. When the conductive rod is pulled away from the rubber block, the rubber block expands radially inwards to close the central through hole. The invention provides a wiring board, which can perform power-on detection without plugging in a plug, so the operation is convenient, the labor intensity is low, and the detection efficiency is high.
Owner:重庆新锐科技服务有限公司
Indoor load test device for post-grouting of pile ends
InactiveCN103499492BRegulating pressureAdjustable spacingPreparing sample for investigationMaterial strength using tensile/compressive forcesTest chamberSlurry
The invention relates to a load test device and a test method in a grouting chamber after a pile end. The device includes a load box, a reaction device, a soil pressure device, and a pile pressure device; the reaction device includes a chassis, a connecting rod and a reaction frame ; The lower end of the connecting rod is fixedly connected to the chassis, and the upper end of the connecting rod is connected to the reaction frame, and an adjustment structure for adjusting the height of the reaction frame is provided between the connecting rod and the reaction frame; the load box is arranged on the chassis, and the soil The body pressurizing device and the pile body pressurizing device are both arranged between the load box and the reaction frame; the method includes making the pile body, filling soil in the load box, positioning the pile body, setting slurry bubbles, pressurizing the soil body, and Body pressurization and other steps. The disclosure of the device and method overcomes the traditional problem that the post-grouting indoor load test of pile ends cannot be performed indoors. And it produces the following beneficial effects: it can simulate the force condition and bearing mechanism of the grouting group piles in the indoor experiment, and can simulate single piles and pile groups, piles of different depths and different distances, and has strong adaptability and multiple functions.
Owner:ZHEJIANG IND POLYTECHNIC COLLEGE
Multi-core cable insulation automatic measuring device
ActiveCN109725243BLabor-saving inspection processLabor-saving detectionTesting circuitsMulticore cableHemt circuits
An automatic measuring device for insulation of a multi-core cable comprises a five-way time-sharing switching circuit, a five-way short-circuit conversion circuit and a transfer switch interface circuit. The five-way time-sharing switching circuit outputs a five-way time-sharing switching signal to an input end of the five-way short-circuit conversion circuit. The five-way short-circuit conversion circuit outputs a nine-way time-sharing short-circuit pulse signal for controlling the transfer switch interface circuit to perform time-sharing switching. The nine-way time-sharing short-circuit pulse signal output end of the five-way short-circuit conversion circuit is connected to the input end of the transfer switch interface circuit. The transfer switch interface circuit outputs the insulation resistance between the different cores to the input end of a detection bridge for the insulation resistance between the cores. The output end of the detection bridge for the insulation resistancebetween the cores is connected to a signal detection and amplifier circuit. The output end of the signal detection and amplifier circuit is connected to the input end of a result storage and display circuit. According to the automatic measuring device for the insulation of the multi-core cable, the multi-channel electronic automatic scanning detection, electronic boosting and automatic logic operation are adopted, so that one-time detection without replacement of each cable in the middle can be completed.
Owner:HUBEI JIANGSHAN HEAVY IND
On-line fast detection method for impregnation degree of resin in fiber cloth
ActiveCN101403677BGuarantee product qualityDetection time savingSurface/boundary effectScattering properties measurementsFiberDiffuse reflection
The invention discloses an on-line quick detection method used for detecting the dipping degree of resin into fiber cloth relates to the detection method for detecting the dipping degree of resin into fiber cloth. The invention solves the problems that the detection to the dipping degree of resin into fiber cloth costs both time and labor during the processing of pre-dipping materials and the quick detection cannot be realized. The method is as follows: 1. a plurality of pre-dipping material samples with the dipping degree of insufficient dipping, excellent dipping and over dipping are selected respectively; 2. the dipping degree of each pre-dipping material sample is calculated; 3. a near-infrared diffuse reflection spectrometer is adopted to collect the same zone on each pre-dipping material sample to obtain a plurality of spectrum information of each pre-dipping material sample; 4. the pre-dipping material sample database is established; 5. correction sample collections are established; 6. the quantitative analysis model for the resin against the fiber cloth is established and the model is optimized to get the optimal correction model; and 7. the optimal correction model is adopted to predict the dipping degree of the resin into the fiber cloth. The invention is suitable for the detection to the dipping degree of different reinforced fibers and resins.
Owner:HARBIN INST OF TECH
Online device for rapidly detecting quality indicators of prepreg tape
ActiveCN101614660BEasy to operateSafe method of operationColor/spectral properties measurementsEngineeringData detection
The invention discloses an online device for rapidly detecting the quality indicators of a prepreg tape, and relates to a device for detecting the quality indicators of the prepreg tape. The invention is to solve the problem of time-consuming, energy-consuming and large reagent-consuming nature of the analysis results in the existing prepreg tape detection method. A first guide roll and a second guide roll are respectively fixed on a first bracket in a vertical manner; a third guide roll and the second guide roll are arranged vertically and fixedly connected with a support plate which is vertically fixed on the first bracket, a fourth guide roll and the third guide roll are arranged in a top and bottom staggered manner, a probe is arranged at one side of the prepreg tape to be tested, thehead part of the probe is opposite to the prepreg tape to be tested, a reflecting plate is arranged at the other side of the prepreg tape to be tested and opposite to the probe, the input end of the probe is connected with a near infrared spectrometer through optical fiber, and the near infrared spectrometer is connected with a computer. The invention can acquire the quality information of the prepreg in a online real-time manner, rapidly reflects the changes of each quality indicator in the prepreg tape to be tested and data detection and production process are carried out synchronously, andthe detection results are accurate.
Owner:HARBIN INST OF TECH
Quality detection device for shipbuilding steel plate butt-jointed seams
InactiveCN102564703BEasy to detectLabor-saving detectionDetection of fluid at leakage pointRubber ringButt welding
The invention provides a quality detection device for shipbuilding steel plate butt-jointed seams, which comprises a detection tank, a detection tank hold-down mechanism, an alcohol jar, an alcohol detector, and an alarm. A seal rubber ring is arranged at the top of the detection tank connected with the alcohol jar through an air pipe. The detection tank hold-down mechanism comprises a support base board, a jack and clamping boards arranged at two ends of the support base board. The detection tank is arranged at the bottom of the shipbuilding steel plate butt-jointed seams, the support base board is arranged below the detection tank, the clamping boards at the two ends of the support base board are clamped on the shipbuilding steel plates, the jack is arranged between the support base board and the detection tank, the seal rubber ring is pressed on the bottom face of the shipbuilding steel plates which are located on two sides of one butt-jointed seam, the alcohol detector directly faces the top of the welding seam and is connected with the alarm through a signal line. By mean of the quality detection device for the shipbuilding steel plate butt-jointed seams, welding seam detection can be achieved before assembling and after butt welding of the shipbuilding steel plates, the detection is more simple and energy-saving, and the increased rework cost caused by welding seam defects after assembling can be effectively reduced.
Owner:CHONGQING SHENGZHU SCI&TECH DEVCO
Wiring board and energization detection device thereof
InactiveCN105322329AEasy to detectLabor-saving detectionSecuring/insulating coupling contact membersElectrical testingElectrical connectionEngineering
The invention discloses a wiring board and an energization detection device thereof. The wiring board comprises a shell and is characterized in that a conductive rod is arranged on the shell, one end of the conductive rod is exposed out of the shell, the other end of the conductive rod passes through the shell and is electrically connected with an energized part in the shell, a detection through hole is formed on the side wall of the shell and used for one end of the conductive rod to be inserted into the shell, an insulation sleeve is sleeved outside the conductive rod, a position, close to the upper end of the conductive rod, of the insulation sleeve outwards protrudes along the conductive rod to form a flange, the wiring board also comprises a top plate, the lower end of the top plate is fixedly provided with a sliding groove with an opening facing downwards, the conductive rod is matched in the sliding groove with the insulation sleeve in a sliding way, a conductive piece is arranged in the sliding groove and electrically connected with the conductive rod, and the upper end surface of the conductive rod is in contact with the lower end surface of the conductive piece. The invention provides the wiring board, energized detection can be carried out in no need of plug insertion, therefore, the wiring board is convenient to operate, the labor intensity is low, and the detection efficiency is high.
Owner:NINGBO RUIXIANG ELECTRICAL APPLIANCE
Wheel non-destructive testing equipment
ActiveCN106093084BSimple structureEasy to produceMaterial analysis by transmitting radiationNon destructiveMechanical engineering
The invention discloses a nondestructive testing device for a hub. The device comprises a conveying track with position relatively fixed, a clamping and rotating unit, an imager and an X ray tube, wherein the imager and the X ray tube are oppositely arranged in the vertical direction, the conveying track and the clamping and rotating unit are horizontally arranged between the imager and the X ray tube, and the clamping and rotating unit is located below the conveying track; the clamping and rotating unit drives an input gear to rotate through an input rack and drives an output gear to rotate at the same time, then output racks are driven to stretch or retract to drive first installation plates to move along a first installation arm, a motor, a reduction gearbox and a turn wheel are installed on each first installation plate, and each turn wheel is driven by the corresponding motor to rotate. By the adoption of the structure, the hub can be lifted and rotated through the clamping and rotating unit after moving to a position right facing the portion between the imager and the X ray tube along with the conveying track, so that the hub can be detected more comprehensively and conveniently with less effort. The device has the advantages of being ingenious in concept, easy to produce, low in production cost and the like.
Owner:CHONGQING RILIAN TECH
A method for detection of oil components in oil spilled from aircraft crashed at sea based on alternating penalized trilinear decomposition
The invention discloses a detection method of oil type and composition of spilled oil of sea surface crashed plane based on alternating penalty trilinear decomposition. Original fluorescence spectrumdata of N samples of aviation kerosene and lubricating oil under different volume ratio configurations is acquired through a fluorescence spectrophotometer. Delaunay interpolation correction is executed for the obtained original fluorescence spectrum data, and corrected three-dimensional fluorescence spectrum data is obtained. The three-dimensional fluorescence spectrum data is processed through acore consistency diagnostic function, and the number of compositions needed when parsing the three-dimensional fluorescence spectrum data through the alternating penalty trilinear decomposition (APTLD) algorithm is obtained. The three-dimensional fluorescence spectrum data is processed through the APTLD algorithm, load matrixes A, B and C of pure oil and mixed oil of the aviation kerosene and lubricating oil are obtained. The load matrixes B and C of the pure oil of the aviation kerosene and lubricating oil and the load matrixes B and C of the mixed oil of the aviation kerosene and lubricating oil are subjected to data fitting, thus, a spectrum fitted curve under a corresponding relation of fluorescence relative intensity and excitation and emission wavelength of the aviation kerosene andlubricating oil is obtained, and degree of correlation of each spectrum curve is judged through root-mean-square error (RMSE) and a correlation function corrcoef.
Owner:YANSHAN UNIV +2
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