39results about How to "The test results are intuitive and clear" patented technology

The invention discloses a partial discharge fault monitoring and evaluating device and a method. The device comprises a microphone array signal collection module which comprises an ultrasonic microphone array and is configured to carry out ultrasonic signal collection on detected power equipment and cache audio data; a partial discharge event detection module which is based on machine learning andis configured to perform real-time monitoring of a partial discharge event on the audio data acquired by the microphone array signal acquisition module by using a partial discharge event detection algorithm based on machine learning, mark the occurrence time of the partial discharge event and cache the audio data; and a sound source positioning module which is configured to find out the audio data corresponding to the marked occurrence time of the partial discharge event from the cached audio data, and perform sound source positioning on the audio data by using a sound source positioning algorithm to obtain an intensity distribution diagram of a sound source.

The invention relates to a method for testing rust-proof and corrosion-resistant properties of metal parts used on garment products. The method comprises the following steps: selecting the two identical metallic components, and using one as a sample to be tested, and the other as a control sample; placing the sample to be tested in the pretreatment environment at the temperature of 21 DEG C+ / -2 DEG C and with the relative humidity of 65% plus or minus 2%, and allowing the sample to stand for at least 4 hours; preparing a NaCl solution with the concentration of 1%, taking a piece of pure cotton white cloth; completely soaking the white cloth in the NaCl solution; after the completion of the soak, taking out the pure cotton white cloth; lightly extruding out excess solution on the pure cotton white cloth; using the soaked the pure cotton white cloth to wrap well the sample to be tested, and placing the sample in an oven at the temperature of 38 DEG C+ / -1 DEG C; and after taking out the sample, comparing the sample to be tested and the control sample and recording and assessing the differences of the sample to be tested, wherein the greater the difference, the rust-proof and corrosion-resistant properties are worse. The method has the benefits that the rust-proof and corrosion-resistant properties of the metal parts used on the garment products can be tested and accessed; the method is simple and convenient; and test results are intuitive and clear.

The invention relates to a potential imaging method for detection of integrity of a polymer impervious wall. The method comprises the following steps of: setting a current transmitting system on one side of the impervious wall, wherein the current transmitting system comprises a remote current electrode, a linear current source electrode and a current transmitting device, the linear current source electrode is arranged in parallel to the axial line of the impervious wall, and the current transmitting device is connected between the linear current source electrode and the remote current electrode; taking the other side of the impervious wall as a potential measurement plane, and setting a potential measuring system on the potential measurement plane; transmitting alternating direct current through the current transmitting system to the underground of one side of the impervious wall, and measuring potential distribution of every point on the other side of the impervious wall through the potential measuring system at certain special intervals; drawing potential distribution diagrams of every point according to the measured data, including an equipotential line chart or an equipotential gradient line chart; and judging the integrity of the impervious wall according to potential levels and potential distribution patterns in the potential distribution diagrams. Compared with the prior art, the potential imaging method has the advantages of high detection efficiency, low cost and convenient operation.

The invention discloses an atmospheric data system simulation test method, which belongs to the technical field of aviation systems. The method is characterized by comprising the following steps of a,setting a flight envelope curve test point, extracting the height and Mach number of a turning point on a flight envelope curve as test base points, and deriving the test point and range according toflight envelope curve characteristics, sensor measurement accuracy and an atmospheric parameter formula, b, designing a hardware platform according to the characteristics of the atmospheric data system, and c, performing software design according to the test points and range selected by the flight envelope, visualizing the test result, and visually judging whether the test data is qualified or not. According to the method, the flight envelope is introduced into atmospheric data simulation, dynamic characteristic verification of the atmospheric data system can be realized, and the reliabilityof the system in various flight states can be verified.

The invention relates to an LAMP (loop-mediated isothermal amplification) test kit for hepatopancreas necrosis disease in Litopenaeus vannamei, comprising the reagents of DNA extracting reagent, a primer, an amplification system reagent and a DNA standard. The LAMP test kit of the invention has the advantages that test on AHPND (acute hepatopancreas necrosis disease) in Litopenaeus vannamei is more efficient and sensitive, effective surveillance is ensured for AHPND pathogens in fry or adults during farming of Litopenaeus vannamei, farming risk is lessened, and the LAMP test kit has a promising application prospect.

The invention discloses a liquid cooling integration box air tightness detection device in the technical field of air tightness detection devices, and the device comprises a supporting bottom plate, the left and right sides of the top of the supporting bottom plate are vertically provided with supporting side plates, the tops of the supporting side plates are horizontally provided with a supporting top plate, and the center of the top of the supporting bottom plate is provided with a detection box body. The upper part of the left side wall of the detection box body is communicated with an air pressure detection meter, at the moment, a first air supply pipe is controlled to pressurize the inner cavity of the liquid cooling integrated box body through a second air supply pipe, and meanwhile, whether bubbles are generated in the water body in the inner cavity of the detection box body and whether the pressure value changes are observed; therefore, the air tightness of the liquid-cooled integrated box body is judged, the position of a specific crack is convenient to observe, the detection efficiency is improved, compared with a simple air tightness detection result, the detection result is more visual and clear, the problem is convenient to find and improve, the operation is simple and convenient, and the popularization of the liquid-cooled integrated box body air tightness detection device is facilitated.

The application discloses a device and method for testing the hydrophobic performance of the inner wall of the pipeline. The equipment for testing the hydrophobic performance of the inner wall of the pipeline includes a horizontal base, a base support rod vertically fixed on the horizontal base, and an adjustment bracket provided at the upper end of the base support rod. 1. The total support beam arranged on the upper end of the adjustment bracket and the pipe clamp assembly installed on the total support beam, the total support beam and the adjustment bracket are fixedly connected to form an integrated structure; the pointer is fixed on the adjustment bracket, and the base rod is fixed An angle indicator for reading the rotation angle of the pointer is provided. The adjustment bracket can rotate vertically on the base pole, and the pointer follows the adjustment bracket to rotate at a certain angle. The angle of pointer rotation can be read by the angle indicator. The device of the present application has the advantages of simple structure, certain innovation in testing the hydrophobicity of the inner wall of the pipeline, quick operation, intuitive and clear test results, and strong repeatability of the test results.

The invention discloses a preparation method of a hybridization probe and a gene chip for PPV (plum pox virus) major strains. The probe comprises PPV-D, PPV-M, PPV-EA, PPV-Rec, PPV-W and PPV-C. The preparation method of a gene chip is characterized by comprising the following steps: gene chip spotting, PCR amplification and sample marking, chip pretreatment, chip hybridization, chip cleaning, chip scanning analysis and data treatment and result judgment. The invention aims at overcoming the shortcomings of the prior art and providing a hybridization probe for detecting the PPV major strains; and the invention also relates to a preparation method of a gene chip comprising the probe.

The invention relates to a method for testing rust-proof and corrosion-resistant properties of metal parts used on garment products. The method comprises the following steps: selecting the two identical metallic components, and using one as a sample to be tested, and the other as a control sample; placing the sample to be tested in the pretreatment environment at the temperature of 21 DEG C+ / -2 DEG C and with the relative humidity of 65% plus or minus 2%, and allowing the sample to stand for at least 4 hours; preparing a NaCl solution with the concentration of 1%, taking a piece of pure cotton white cloth; completely soaking the white cloth in the NaCl solution; after the completion of the soak, taking out the pure cotton white cloth; lightly extruding out excess solution on the pure cotton white cloth; using the soaked the pure cotton white cloth to wrap well the sample to be tested, and placing the sample in an oven at the temperature of 38 DEG C+ / -1 DEG C; and after taking out the sample, comparing the sample to be tested and the control sample and recording and assessing the differences of the sample to be tested, wherein the greater the difference, the rust-proof and corrosion-resistant properties are worse. The method has the benefits that the rust-proof and corrosion-resistant properties of the metal parts used on the garment products can be tested and accessed; the method is simple and convenient; and test results are intuitive and clear.

The invention discloses a controller detection device, which relates to the technical field of electric automobile parts production and manufacture. The controller detection device comprises a voltage regulation unit used for regulating voltage, a rectifier unit used for converting alternating current into direct current, a control signal unit used for being connected with a controller to be detected, and a principal computer. The output end of the voltage regulation unit is connected with the input end of the rectifier unit. The output end of the rectifier unit is connected with the power end of the control signal unit. The input end of the control signal unit is connected with the output end of the controller to be detected. The output end of the control signal unit is connected with the principal computer. The problems of long test time cycle and low efficiency in electric automobile controller detection can be solved.

The invention discloses an electronic scale with automatic switching of measuring ranges and weighing method. The electronic scale includes a tray, three pressure sensors with different measuring ranges and a pedestal; a control unit is arranged in the pedestal, and a data input device and a display output device are arranged on the pedestal, and are connected with the control unit; the three pressure sensors are adjacent to each other in an end-to-end manner to form a regular triangle, the upper end faces of the three pressure sensors are located in the same horizontal plane, the upper end face after each pressure sensor is turned over around itself is still in the horizontal plane, and the three pressure sensors are connected with the control unit; and three drive circuits and three direct current motors are arranged in the pedestal, the three drive circuits are connected with the control unit, the three direct current motors are connected with the three drive circuits, and the three pressure sensors are connected with the three direct current motors. The electronic scale provided by the invention has the function of adaptive switching of measuring ranges, thereby facilitating weighing of objects of different weights by users.

The invention discloses a destructive effect testing method for detecting rigidity of ionic sandwich glass. The method specifically includes the following steps of firstly, adjusting a testing device;secondly, recording before-test data; thirdly, damaging a test product; fourthly, recording after-test data; fifthly, obtaining a test result. By means of the detecting method, by completing damagingglass of the two sides of the ionic sandwich glass and directly comparing before-damage and after-damage visual data of the product, the rigidity grade corresponding to the test product can be obtained; the detecting process is simple and clear, the detecting result is visual and clear, the unified simple and feasible detecting method and judgment criteria are provided for detecting the rigidityof the product, and further technological support is provided for the optimized design of the product.

The invention relates to a superhigh temperature refractory pyrometric cone and a preparation method thereof, and belongs to the field of pyrometric cones and preparation thereof. The pyrometric cone comprises the following components in percentage by weight: 47-97% of Al2O3, 2-52% of SiO2, 0.01-1% of Fe2O3, 0-1% of K2O and Na2O, and 0.01-0.5% of CaO. The preparation method comprises the following steps: mixing clay, quartz sand and alumina, adding 1-3% water glass solution, and forming; after forming, drying, and presintering in a high temperature furnace to obtain the pyrometric cone. The pyrometric cone is used for stable measurement at 1820-2000 DEG C. The test result is visual and clear and can truly reflect the temperature of the hot environment; and the invention has the advantagesof simple preparation method and low cost, and is suitable for industrial production.