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297results about How to "Detection data is reliable" patented technology

Receiving and transmitting integrated open light path atmospheric detection system

The invention belongs to atmospheric infrared detection equipment, and specifically relates to a receiving and transmitting integrated open light path atmospheric detection system. The receiving and transmitting integrated open light path atmospheric detection system comprises an infrared signal transmitting unit, an infrared signal receiving unit and at least two reflection units, wherein the infrared signal transmitting unit and the infrared signal receiving unit are integrated in a machine body; an infrared light beam transmitted by the infrared signal transmitting unit is projected to the reflection units, can be returned back the way to the machine body after being reflected by the reflection units and can be incident to the infrared signal receiving unit; the at least two reflection units are distributed in a detection space zone at intervals; an emergent direction of the infrared light beam is set to be adjustable, so that the infrared light beam can be selectively projected to any one reflection unit. According to the receiving and transmitting integrated open light path atmospheric detection system disclosed by the invention, the stroke of the infrared light beam is doubled by utilizing separated reflection of the reflection units, the distance between two devices under the same stroke is shortened, and the device debugging difficulty is reduced; in the receiving and transmitting integrated open light path atmospheric detection system, the infrared light beam can be switched in several different paths, so that atmospheres in different directions in a to-be-detected zone can be detected, and detection data are more reliable.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Automotive wiring harness conduction detection method

The invention relates to an automotive wiring harness conduction detection method. A method for detecting the connection of a single circuit comprises the following steps of: setting voltages V1 and V2 as voltages of the two ends of an automotive wiring harness loop respectively, applying a standard voltage to V1 and performing logic comparison on the voltage V2 to obtain a voltage Vo; and judging the voltage Vo to obtain a judgment result indicating whether a wiring harness is qualified or not. The automotive wiring harness detection method for detecting and judging a multi-loop multi-endpoint circuit comprises the following steps of: when all the endpoints of an automotive wiring harness need to be judged, defining a sending end and a receiving end, identifying each circuit, sending a standard voltage signal at the sending end, receiving the signal at the receiving end, comparing received data with standard data and judging to obtain the on-off and wiring conditions of the whole wiring harness; displaying a test result graph on a liquid crystal display and providing a voice prompt; and after all circuits pass the test, printing a product qualified tag or outputting a signal to control an automatic tool to pop up the automotive wiring harness. The method has a reasonable design and obvious effect.
Owner:SCHLEUNIGER HAOFENG TIANJIN MACHNERY

Carbon dioxide concentration-modified exhaled gas multi-component detection instrument and detection method

The invention discloses a carbon dioxide concentration-corrected exhaled gas multi-component detection instrument and detection method. The detection instrument comprises a filter flask, a carrier gas pump, a drying pipe, a sampling gas pump, a sample ring, a first two-phase three-way solenoid valve, a second two-phase three-way solenoid valve, a third two-phase three-way solenoid valve, a chromatographic column and a detection gas chamber, and after communication, a sampling passage, a washing passage and a detection passage are respectively formed. The detection gas chamber is of a cuboid structure and is provided with a PCB tank, a MOS tank, a carbon dioxide sensor tank, a temperature measuring hole, a gas reaction chamber and the like. A sensor can quickly give a response and restore a baseline; after the outputted response is subjected to signal processing and calculation, hydrogen and methane concentrations are obtained and can be corrected according to carbon dioxide concentration, so that sample acquisition constraints are reduced, and the error caused by breath collection and other human factors is reduced. The carbon dioxide concentration-corrected exhaled gas multi-component detection instrument is perfect in functions, small in size, simple and convenient to operate, higher in accuracy, stability and repeatability and friendly in user interaction, and facilitates popularization of large-scale clinical application.
Owner:ZHEJIANG UNIV +1

Electromagnet driven gyroscope based on nanometer film quantum tunneling effect

The invention relates to a micro-mechanical gyroscope, in particular to an electromagnet driven gyroscope based on a nanometer film quantum tunneling effect, solving the problem of the existing micro-mechanical gyroscope that an applied drive mode, an applied detection mode and the structures corresponding to the drive mode and the detection mode limit the performance of the gyroscope to be further improved. The gyroscope comprises a carrier plate embedded with a permanent magnet and a gyroscope tube core, wherein the gyroscope tube core is internally enveloped with a gyroscope sensitive mechanism which comprises a support frame body, a glass base plate, a composite beam and a mass block; the composite beam is formed by a detection beam and pentacle-shaped drive beams symmetrically positioned at the two sides of the detection beam; the connection place between the detection beam and support frame body is provided with a nanometer film quantum tunneling apparatus; the mass block is provided with a feedback lead wire and a drive lead wire; a connection lead wire at the two ends of the feedback lead wire and the drive lead wire, which is positioned along the composite beam, is connected with a lead wire pad corresponding to the support frame body. The gyroscope has simple, rescannable and compact structure, is suitable for microminiaturization, and greatly improves performance parameters such as sensitivity, and the like, compared with the existing micro gyroscope.
Owner:ZHONGBEI UNIV

Pulling tool capable of generating power of pipeline detector

The invention discloses a pulling tool capable of generating power of a pipeline detector, and the pulling tool is used for pulling the pipeline detector. The pulling tool consists of a supporting body, a power generating system and a speed regulating system, wherein the two ends of a framework are provided with leather cups to form the supporting body; a motor is sequentially connected to a speed reducer and a speed regulating valve so as to form the speed regulating system with a speed sensor and a control unit; a pressing wheel mechanism, a power generator gearbox and a power generator are sequentially connected so as to form the power generating system with a storage battery. The control unit, the power generator, the storage battery and the motor are sealed in a sealed cabin; and the sealed cabin is mounted in the framework. Under the action of a tension spring, a pressing wheel clings to a pipeline inner wall; when a fluid in a pipeline drives the pulling tool to move, the pressing wheel is driven to rotate, and the power generator is driven to generate powder after the speed of the pulling tool changes, and the electric energy is stored in the storage battery. Under the action of the speed regulating system, the whole detector is almost stable in operation speed, so that the detection data is more precise and reliable; and meanwhile, in the operation process of the detector, the power generating system is always in a power generating state, so that sufficient electric quantity is provided for the whole detector.
Owner:XIHUA UNIV

Device and method for testing noise immunity of power frequency magnetic field of electric energy meter

InactiveCN103728585AImprove reliabilityRealize automated verificationElectrical measurementsEngineeringCurrent source
The invention provides a device and method for testing the noise immunity of a power frequency magnetic field of an electric energy meter. The device comprises a 0.02 level standard equipment cabinet, an exciting current source and an automatic coil overturning device. The automatic coil overturning device comprises a proximate matter frame, a motor driving device, an electric energy meter rotating mechanism and an electromagnetic coil. The exciting current source is placed on the bottom layer of the automatic coil overturning device. An automatic power frequency magnetic field detecting coil module is placed inside the automatic coil overturning device. The method includes the steps that (1) a working power supply is supplied to the electric energy meter by a 0.02 level power source, and the electric energy meter is placed on a tray; (2) electricity is supplied to the coil by the exciting source; (3) the coil is driven by a motor to rotate; (4) test data are uploaded to a computer, so that a test is completed. According to the device and method, the degree of automation is high, the reliability of the test data is greatly improved, the automation verification of the electric energy meter can be achieved, manual intervention is needless, the test data are accurate and reliable, and the performance is stable.
Owner:STATE GRID CORP OF CHINA +3

Method for detecting divalent cadmium ion in aquatic product by using HPLC-ICP-MS coupling technique

A method for detecting a divalent cadmium ion in an aquatic product by using an HPLC-ICP-MS (High Performance Liquid Chromatography-Inductively Coupled Plasma-Mass Spectrometer) coupling technique belongs to the technical field of detection of aquatic products. The method comprises the following steps: 1), selecting instruments and equipment as well as an HPLC-ICP-MS coupling system; 2), configuring reagents and a standard solution; 3), processing a sample; 4), creating conditions for the experiment instruments; and 5), detecting the sample and calculating the results. According to the method, the cadmium in the aquatic product is extracted by neutral water in an ultrasonic way and the state of the cadmium is not changed, so that the cadmium in a free ion state and the cadmium subjected to complexation with organic matters such as protein both exist in the extract solution. In the adopted mobile phase, oxalate exerts a strong complexation effect on the cadmium ions but does not adsorb and elute stable cadmium complex in the extract solution, so that the cadmium ions and the cadmium complex in the sample can be guaranteed to be better separated. The method for detecting the divalent cadmium ion in the aquatic product by using the HPLC-ICP-MS coupling technique fills a blank in national standard that only the cadmium detection method is provided but no method for detecting the state of cadmium element is provided, therefore, the quality safety of the aquatic product and products of the aquatic product can be accurately and scientifically evaluated, meanwhile, the method is of great significance for formulating a new standard on the limit of harmful elements in the aquatic product.
Owner:QINGDAO DONGWEI FOOD CO LTD

Pavement material direct tensile test apparatus with eccentric tension avoided and method thereof

The invention provides a pavement material direct tensile test apparatus with eccentric tension avoided and method thereof, and the apparatus comprises a test part, a detected part installed in the test part, and electromagnetic force control part, wherein, the test part comprises a hinged base on the spherical shape, and a spherical lower hinged base matched with the spherical upper hinged base, and the spherical upper hinged base is installed with a upper link which is connected to a mechanics test and simulation testing machine, and the spherical lower hinged base is connected with a cast iron block by the lower pull bar, and the test part is installed between the spherical upper hinged base and the spherical lower hinged base; the electromagnetic force control part is connected with the cast iron block. Because of the flexibly rotary spherical hinged base, in the test process, when the test part is tensioned, the test part can naturally drop depending on gravity, thereby the eccentric force being effected on the detected part during tensile test is avoided, and the test result is more accurate, in addition, the invention has the advantages of simple structure, convenient operation, economic utility, reliable test data provision and minimized test error.
Owner:CHANGAN UNIV

Detection device and detection method for detecting tenon staggered teeth of turbine blade

The invention relates to a detection device and a detection method for detecting the tenon staggered teeth of a turbine blade. The device comprises a bottom plate. A support plate is fixedly arranged on the bottom plate. The support plate is provided with a fixed tooth-shaped block and an elastic tooth-shaped block which are used for being matched with each other to compress the tenon of the turbine blade. The opposite side surfaces of the fixed tooth-shaped block and the elastic tooth-shaped block are provided with tooth profiles matched with the tenon of the turbine blade. The upper end of the elastic tooth-shaped block is fixedly connected with the support plate. The side surface of the elastic tooth-shaped block, with its back onto the fixed tooth-shaped block, is connected with a compression device. A sliding plate capable of sliding is arranged on the bottom plate. A lever and a gauge clamp used for being connected with a dial indicator are installed on the sliding plate. The lever is of a right-angle turning-shaped structure composed of a transverse rod and a vertical rod, wherein the end part of the transverse rod can be abutted against the tenon of the turbine blade. The end part part of the vertical rod is connected with the dial indicator. According to the technical scheme of the invention, during usage, all the teeth of the tenon of the turbine blade can be positioned. The entire blade body and the blade crown part of the turbine blade are suspended to push the detection sliding plate for detection. Therefore, the operation is simple and convenient, and detection data are stable and reliable.
Owner:AECC AVIATION POWER CO LTD

Concrete strength detection method based on electromagnetic properties of material

The invention discloses a concrete strength detection method based on the electromagnetic properties of a material. The concrete strength detection method comprises the following steps: preparing a concrete test piece with a mix ratio identical to the mix ratio of actual structural concrete and carrying out maintenance for 28 d under conditions identical to maintenance conditions of the actual structural concrete; carrying out nondestructive test on the concrete test piece by using a ground penetrating radar according to a reflection method or transmission method; calculating the relative dielectric constants of the concrete test piece according to the propagation time of electromagnetic waves in the concrete test piece, carrying out detection a plurality of times and taking an average value of the calculation results; and acquiring concrete strength according to a curve model of the correlation between the relative dielectric constant and strength of concrete established on the basis of experiments. The invention has the following characteristics: radar nondestructive testing technology is employed; original structure is not damaged; testing precision is high; the speed of testing is fast; the test piece is simple to prepare; since the mix ratio and maintenance conditions of the test piece and the actual structural concrete are identical, detection results are genuine and believable; and the method has wide applicability.
Owner:JIANGSU UNIV OF SCI & TECH

Intelligent orthotropic steel bridge deck fatigue cracking detection robot

PendingCN111021244ATake full advantage of self-lockingFully automated inspection processAnalysing solids using sonic/ultrasonic/infrasonic wavesBridge structural detailsBridge deckStructural engineering
The invention, which relates to the technical field of orthotropic steel bridge deck fatigue crack detection, discloses an intelligent orthotropic steel bridge deck fatigue crack detection robot comprising a top plate walking detection device, a longitudinal rib walking device, an electric drive telescopic mechanism and an electric drive swing mechanism. The top plate walking detection device andthe longitudinal rib walking device are provided with crawlers respectively; a plurality of electromagnets are arranged on the outer sides of crawler belts of the crawlers to achieve adsorption of thecrawler belts on a top plate or longitudinal ribs. An ultrasonic detector is arranged on the top plate walking detection device and can move close to or away from a crawler; the top plate walking detection device is connected with the electric drive telescopic mechanism, the joint of the top plate walking detection device and the electric drive telescopic mechanism can rotate, the electric driveswing mechanism is connected with the other end of the electric drive telescopic mechanism and can swing at the joint, and the longitudinal rib walking device is connected with the other end of the electric drive swing mechanism and can rotate. The robot can complete automatic detection of the orthotropic steel bridge deck slab, the traditional manual detection mode is changed, the manpower can besaved effectively, the detection efficiency is high; and the detection data are reliable.
Owner:川南城际铁路有限责任公司

Intelligent wristwatch integrating pedometer function, electrocardiogram function and blood oxygen function

The invention discloses an intelligent wristwatch integrating a pedometer function, an electrocardiogram function and a blood oxygen function, and belongs to the field of medical equipment. The intelligent wristwatch comprises a watch face and a watchband connected with the watch face, wherein a clock, a pedometer, an electrocardiogram monitoring module and a blood oxygen monitoring module are installed in the watch face. A light emitting drive circuit of the blood oxygen monitoring module is connected with a transmitting sensor, the light emitting drive circuit, the transmitting sensor and a receiving sensor are connected to a processor, the transmitting sensor and the receiving sensor are respectively placed in shading rubber and located on the edge of the upper surface of the watch face or the side face of the watch face or the watchband, and the included angle between a transmitting hole of the transmitting sensor and a receiving hole of the receiving sensor ranges from 90 degrees to 180 degrees. The electrocardiogram monitoring module comprises a watch face surface testing electrode, a watch face bottom testing electrode and a reference electrode, wherein the watch face surface testing electrode is connected with the processor through an integration analog front end and placed on the upper surface of the watch face, and the watch face bottom testing electrode and the reference electrode are placed on the lower surface of the watch face. The intelligent wristwatch is simple, convenient and fast to operate, capable of collecting data accurately and reliably, attractive and elegant.
Owner:CONTEC MEDICAL SYST

Method for detecting heat resistance of electric wire and detection device thereof

The invention relates to a method for detecting the heat resistance of an electric wire with a high-temperature cut-through method and a detection device thereof. The detection method comprises the following steps: 1, tying a heavy object at the two ends of a sample, connecting conductors at the two ends and then connecting with one end of a multimeter; 2, suspending the central part of the sampleon a metallic channel so that the sample is attached to the metallic channel, and then lifting the metallic channel and fixing the channel horizontally on a bracket so that the heavy object is suspended freely at two sides of the U-shaped metallic channel; 3, connecting any point on the metallic channel with the other end of the multimeter; and 4, placing the sample that is suspended on the U-shaped metallic channel and tied with heavy objects in a thermostat. When the temperature gradually rises to a certain temperature, an outside insulating layer of the sample starts to smelt, the conductor of the sample is in cut through with the U-shaped metallic channel, the multimeter deflects, and the temperature at the moment is the heat-resistance temperature of the electric wire. The inventionrealizes that the detection method is convenient to operate, the detection data is accurate and reliable and the detection device has simple structure. Therefore, the detection method can be generalized and applied as a new method for detecting the heat resistance of the electric wire.
Owner:TIANJIN 609 CABLE COMPANY

Double glass component EVA and glass adhesive property detection method

The present invention discloses a double glass component EVA and glass adhesion property detection method, which relate to the technical field of adhesive property testing. The method comprises the following steps: preparing a test sample in which a piece of lower glass is placed on the plane, the four corners of the lower glass are provided with four pieces of Teflon high temperature cloth and one more piece of Teflon high temperature cloth is arranged between the two corners at the longer edge of the lower glass; sending the test sample to a laminator for lamination; using a cutting tool to cut the backboard at the upper side of each piece of Teflon high temperature cloth into long strips; fixing the test sample on the test bench of a ensile testing machine; and using a clamp to clamp the already cut backboard and one end of an adhesive tape composed of the upper EVA and the lower EVA to perform a 180-degree peel test between the EVA at the corresponding position and the glass. In the method, it is possible to obtain the real values of the EVA and the glass adhesive property inside a component, provide reliable detection data for the production process, guarantee the product quality of the double glass component and reduce the use risk of the component.
Owner:YINGLI ENERGY CHINA

X-ray online detection apparatus for lithium ion battery

The present invention discloses an X-ray online detection apparatus for a lithium ion battery. The apparatus comprises a material feeding conveying platform connected with a lithium ion battery production line, an X-ray detection assembly, a material discharging conveying platform, a control host machine and a display device, wherein the material feeding conveying platform and the material discharging conveying platform are arranged at intervals in parallel, two gantries are arranged above the material feeding conveying platform and the material discharging conveying platform at intervals in parallel, the X-ray detection assembly is arranged between the material feeding conveying platform and the material discharging conveying platform, the gantries are provided with straight line guide rails, the straight line guide rail is provided with a clamper for clamping and transferring a lithium ion battery, the clamper is connected with a horizontal driving device for driving the clamper to move along the straight line guide rail and a vertical driving device for driving the clamper to vertically move, and the material discharging conveying platform comprises a qualified battery conveying platform and an unqualified battery conveying platform. The X-ray online detection apparatus for the lithium ion battery in the present invention has characteristics of simple structure, easy operation, high detection efficiency, and accurate and reliable detection data.
Owner:WUXI UNICOMP TECH
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