194results about How to "Test applicable" patented technology

The invention discloses an intelligent detection device of defects of a mobile phone outer shell based on machine vision. The device comprises a transmitting device, detection systems, a degraded product unit and a computer; the transmitting device comprises two transmitting strips and a diversion air cylinder; each detection system respectively detects the frontage side, the left side, the rightside, the front side and the rear side of the mobile phone outer shell; each detection system comprises an illumination unit and an image collecting unit; the illumination unit illuminates one side of the outer shell of the mobile phone, and the image collecting unit photographs; collected image signals are transmitted to the computer; the computer recognizes the degraded mobile outer shell, and transmits the serial numbers of the mobile outer shell with defects to a degraded product rejecting unit; and the degraded product rejecting unit rejects the mobile phone outer shell with defects. According to the invention, defects such as scratches, burr, discoloration, dent, bubbles of the mobile phone outer shell can be detected, the degraded products are separated automatically, and the device has the characteristics of intelligence, high efficiency, stability and high accuracy.

The invention provides a portable raman spectrometer based on spectral analysis of a micro electro mechanical system. On the basis of the micro electro mechanical system, the portable raman spectrometer comprises a laser light source, a raman probe head and a spectrum detection system of a spectrograph, wherein the laser light source comprises a semiconductor laser which is used for generating lasers, the power of the generated lasers is not less than 200 milliwatts, and the line width of the generated lasers is not greater than 0.2 nanometers; the raman probe head comprises a laser outputting optical path and a raman scattered light collecting optical path which does not comprise a light filter for filtering rayleigh scattered light; and the spectrograph comprises the spectrum detection system which sequentially consists of a focusing lens I, a digital micromirror device (DMD) module I, a collimating lens, a chromatic dispersion optical grid, a focusing lens II, a digital micromirror device (DMD) module II, a de-chromatic dispersion optical grid, a focusing lens III, a single-point detector and a signal processor. The portable raman spectrometer has the advantages of being capable of keeping the resolution ratio of spectrum detection and improving the sensitivity of spectrum detection, being suitable for detection on weak signals such as raman signals, and the like.

The invention relates to an ELISA kit for detecting zearalenone, the detection is rapid, sensitive, accurate, quantitative, simple in operation, low in requirements on sample purity and strong in specificity, thereby being particularly applicable to the detection of large quantities of samples; and the invention also provides a preparation of the kit and a detection method. The kit comprises washing liquid, color developing liquid A, color developing liquid B and stop solution, and the kit is characterized in that: the kit also comprises a coated plate, a zearalenone standard product, a zearalenone monoclonal antibody freeze-dried product and an enzyme-labeled goat anti-mouse antibody free-dried product; when in detection, the coated plate is taken, 50mu1-100mu1 of the ZEN standard product or a well processed sample is added into the respective micropores, 50mul-100mul of the anti-ZEN antibody is added, the incubation is carried out at 35 DEG C-45 DEG C for about 0.5 hour-1 hour, the washing liquid is used for washing for 3 times-5 times, 50mu1-100mu1 of the horseradish peroxidase (HRP)-goat anti-mouse antibody is added, the incubation is carried out at about 35 DEG C-45 DEG C for about 0.5 hour-1 hour, the washing liquid is used for washing for 3 times-5 times, 50mu1-100mu1 of the color developing liquid A and 50mu1-100mu1 of the color developing liquid B are added, the mixture is placed still in the dark for 10 minutes-20 minutes, then the stop solution is added, the absorbance value is measured at 450nm, and the ZEN content in the sample is calculated from a standard curve.

The invention provides an electromagnetic ultrasonic probe with a variable structure. The electromagnetic ultrasonic probe comprises an anti-interference shielding cover, a probe interface, a deflector rod, a bias magnetic field and an EMAT (Electro Magnetic Acoustic Transducer) coil, wherein the anti-interference shielding cover covers the bias magnetic field and the EMAT coil; the anti-interference shielding cover is mechanically connected with the probe interface which is electrically connected with the EMAT coil through a lead; the probe interface is used for introducing an external excitation signal; the EMAT coil is used for exciting an ultrasound signal; the bias magnetic field is provided by a periodic magnet and is arranged above the EMAT coil; the EMAT coil is of a folding line type coil structure, the distances S1 between every two adjacent leads are the same, the periodic magnet can horizontally move at the displacements S2 above the EMAT coil through the deflector rod, and S1=S2. The aim of detecting different kinds of defects is realized by exciting in various ultrasound modes through the same probe structure.

The invention discloses a manufacturing test method for memory performance, which comprises the following procedures: the method comprises at least one of the following testing methods: test the reading stability of memory after writing with large size CACHE; test the stability of memory in large span jump writing with CACHE random address. Compared with the RAM stress test commonly adopted in the industry, the testing method in the invention saves the testing time, enhances the testing efficiency and is suitable for manufacturing test; compared with the functional testing method adopted commonly in manufacturing test, the invention is able to supplement the latter's insufficiency in the testing of memory performance (stability of memory particle).

A customizable high-gain ZnO nanowire array UV detector and a preparation method thereof relate to the fields of microelectronic technologies, nanometer technologies and UV detection. On the basis of a synergic theory, nanowires compete for a reaction solute when fluctuation is instable, an in such a competition mechanism, the thinner a seed layer is, the fewer solute resources are needed, and growth time is decided by the growth speed. Based on such a growing principle, the thickness of the seed layer, the solution concentration and growth time are adjusted to obtain nanowires of higher quality, and UV detection devices of different gains are obtained. The method is simple and effective, and the customized devices of different gains can be suitable for UV detection in different environments.

The invention provides an automotive fuel leak detection method, comprising the following steps of: pressurizing in a fuel tank; connecting up a U-shaped tube containing liquid at an interface; observing the change of liquid level in the U-shaped tube; and determining that whether the fuel tank is leaked. The automotive fuel leak detection method adopts a U-shaped mode, utilizes pressure change to lead the change of liquid level of the U-shaped tube to realize the leakproofness of detecting an automotive fuel system, thus leading the structure of the U-shaped tube to be simple and reasonable, the carry and use to be convenient and the cost to be low. The method is applicable to the state of the total automobile or test of parts.

The invention provides a method for detecting polydimethylsiloxane in a food. The content of a high molecular compound is determined by a pyrolysis gas chromatography/mass spectrometry. The method comprises the following steps of: performing high temperature pyrolysis on the polydimethylsiloxane in the food to obtain low-molecular compounds; discovering that the hexamethyl cyclotrisiloxane in the compounds can be used as an indicating component for determining the polydimethylsiloxane by authenticating the components of pyrolysis products by gas chromatography/mass spectrometry; determining whether complex pyrolysis products of a sample have the hexamethyl cyclotrisiloxane by taking m/z 207, 191, 177 and 133 as mass spectrum characteristic ions of the hexamethyl cyclotrisiloxane so as to qualitatively determine whether the sample has the polydimethylsiloxane; and calculating the content of the polydimethylsiloxane in the sample by an external reference method by taking the m/z 207 as quantitative ions. The method provided by the invention has the characteristics of simplicity, rapidness, accuracy, reliability, and high sensitivity, and can be used for detecting the content of the polydimethylsiloxane in various types of food.

A test device of switch consists of data collector and de-concentrator which connecting port needed test and data collector in the switch and separating current signal and Ethernet data signal from signal of port output, sending Ethernet data signal to data collector and detecting whether current signal is effective or not. The data collector detects data switching ability of received Ethernet data signal. A test equipment enabling to test multiple ports of switch at one time is also disclosed .

The invention relates to a performance test method, device and system, belonging to the technical field of internets. The method comprises the following steps: obtaining test configuration information; generating a test model according to the test configuration information; analyzing the test model to obtain at least two sub-models; distributing the at least two sub-models to at least two test nodes, and controlling various test nodes to perform performance tests by adopting respectively distributed sub-models; and receiving and combining test data sent by the at least two test nodes. According to the invention, the test configuration information is obtained; the test model is generated according to the test configuration information; the test model is analyzed into the at least two sub-models; therefore, testers are unnecessary to write a test script; the implementation cost is low; the at least two sub-models are distributed to the test nodes; various test nodes are controlled to perform the performance tests by adopting the respectively distributed sub-models; and thus, the performance test method, device and system disclosed by the invention are applied to performance tests of large-scale systems.

The invention relates to a method for detecting the content of boric acid and borate in cosmetics. A method for measuring boric acid and borate in cosmetics by microwave digestion -ICP-OES comprises the following steps of: performing microwave digestion on a cosmetic sample through nitric acid and hydrogen peroxide to decompose organic substances, guiding sample solution into an inductive coupling plasma atomic emission spectrometer atomizer to form aerosol, loading the aerosol into high-temperature high-frequency plasma by argon to generate ionization and generate a characteristic spectral line, and measuring the spectral line intensity of a boron element and an internal standard yttrium element in the sample solution, wherein the intensity of the boron element is in direct proportion to the content of the boron element; and correcting a response value of the boron element according to the ratio of an actually measured yttrium internal standard response value to an expected internal standard response value, performing quantitative measurement by adopting a standard curve method, calculating the content of the boron element in the cosmetics, and obtaining the content of the boric acid and the borate through conversion coefficients. The method has the characteristics of strong specificity, high sensitivity and accurate result.

The invention discloses a method and device for detecting the quality of cigarette filter stick end face shapes. At the tail end of the filter stick production, two high-speed cameras on which high-precision calibration is carried out in advance are used for sequentially imaging the end faces of filter sticks in turn, and the images are analyzed and measured through a computer and the software of the computer; the concentricity of the center of filter stick cavity patterns and the center of the outer circles of the filter sticks, the similarity of the filter stick cavity patterns and a standard pattern, the circular degree of the outer circles of the filter sticks and broken filaments and notches of the filter stick cavity patterns and the outer circles of the filter sticks are measured; whether the filter sticks are qualified or not is judged according to the measurement result and the detection standard; the inferior-quality filter sticks are removed on line. The method and device for detecting the quality of the cigarette filter stick end face shapes have the advantages that the degree of automation is high; on-line detection is carried out in a real-time and high-speed mode, and the inferior-quality filter sticks are removed on line; the precision is high, and the repeated measuring precision reaches to 0.01mm; no damage or stain is caused to the filter sticks due to non-contact; all measuring data of parameters of the cigarette filter stick end face shapes are obtained, and the data can be rechecked; the method and the device are also suitable for detecting the appearance shapes of other filter stick end faces and the appearances of the end face of cigarettes.

The invention discloses a nucleic acid detection cassette based on magnetic bead transfer and valve controlled pipetting and a detection method thereof, a cassette body is divided into a nucleic acidextraction area and an amplification detection area, the amplification detection area is provided with a rotary valve tube, a PCR tube, a gas pump interface, a gas channel and a liquid channel, the gas channel respectively extends from the rotary valve tube to a liquid mixing tube and the gas pump interface. The liquid channel respectively extends from the rotary valve tube to a elution tube, theliquid mixing tube and the PCR tube; and a rotary valve for controlling the opening and closing of the gas channel and the liquid channel is arranged in the rotary valve tube. According to the presentinvention, the clinical collection throat swab without any treatment can be directly added, the nucleic acid extraction is achieved by externally driving a magnetic rod and a magnetic rod sleeve, theopening and the closing of the related liquid channel and the gas channel are achieved by controlling the rotary valve, the directional transfer of the liquid can be achieved under the effect of theexternal pump, and finally the real-time fluorescence PCR amplification detection is performed in the PCR tube, so that sample input and result output can be simply and efficiently realized.

The invention relates to a kit for detecting breast cancer HER2 gene amplification, especially to a kit for detecting HER2 gene real-time fluorescence polymerase chain reaction. By the utilization of the real time fluorescence PCR technology, the kit provided by the invention detects the amplification level of the HER2 gene in a breast cancer tissue specimen by calculating Delta Ct value, and canbe applied in a plurality of research fields such as the auxiliary diagnosis, clinic and prognosis of breast cancer.

The invention relates to a LAMP kit for detecting PRV, an establishment method and an application thereof. The kit comprises a detection system consisting of LAMP reaction solution of four primers. Detection has verified that the kit can quickly and conveniently detect the PRV with high efficiency, high specificity and high sensitivity under 60 to 65DEG C isothermal condition, does not need any complicated instrument, can well meet the requirement on the field detection to the PRV, can distinguish PRV gE gene deletion vaccine and field strains, provides a novel technical platform for the safety detection of food, can well meet the urgent need on the field detection of the PRV, is used for the field detection of import and export quarantine, food health departments, livestock farms and the like, and is easy to be popularized and applied in a large scope.

The invention discloses a detection method of the GaN single-crystal defective kinds and the density which is to improve the traditional wet corrosion detection technology to match the GaN material. The invention detects the surface of the sample by amplifying the SEM magnification times and reducing the AFM detection section step by step. Also it uses the AFM deep section topography and skips over the corrosion condition. It ensures the solid shape of the corrosion pit by compounding the SEM and the AFM to determine the corresponding relation of the corrosion pit and the flaw type by compounding the physical model of the corrosion mechanism. It computes the density and the distributing of all kinds of the flaws by reading the SEM picture. The invention is simple and proper for detecting the industry production.

The invention discloses a circulation tumor cell separation and enrichment micro-fluidic chip and an enrichment method thereof. The circulation tumor cell separation and enrichment micro-fluidic chip comprises a sample treatment chamber and a separation purification chamber, wherein the separation purification chamber comprises a micro channel, a magnetic field adsorption part, a magnetic collection chamber, a cell collection chamber and a filtering membrane; a sub-channel is formed inside the micro channel; the magnetic field adsorption part is arranged on the inner wall of the sub-channel; one end of the micro channel is communicated with the sample treatment chamber; the other end of the micro channel is communicated with the magnetic collection chamber and the cell collection chamber in sequence; the magnetic collection chamber is used for collecting magnetic beads which are not adsorbed by the inner wall of the sub-channel; the filtering membrane which is capable of retaining circulation tumor cells is arranged inside the cell collection chamber; and a liquid outlet from which a liquid filtered by the filtering membrane flows out is formed in the cell collection chamber. The circulation tumor cell separation and enrichment micro-fluidic chip is efficient, rapid, good in specificity and high in accuracy.

The invention discloses a device simulating a laser target of small-angle movement, which comprises an optical part and an electric-control part, wherein the optical part comprises a laser, an energy regulator, a beam enlarger and a prism, and the electric-control part comprises an electric-control rotary table device and a controller and an angle-output device thereof. A light beam sent by the laser is radiated into the beam enlarger by the energy regulator, a radiated light ray is deviated by the central prism of the electric-control rotary table and enters a tested optical-electrical tracking system, and parallel light rays can be controlled to rotate according to a certain deviated angle to simulate a moving target by controlling the electric-control rotary table. The invention has compact structure, simple installation and regulation, low cost and easy calculation of the simulated target position, and can be used for the indoor tests of the aerospace and military small-angle optical-electric tracking systems.

The invention provides an extraction method for mercury compounds in sediments. The extraction method comprises the following steps: adding a complexing agent into the sediments, and carrying out complexing reaction, thereby obtaining complex; and centrifuging, taking out supernatant liquor, adding ion liquid, oscillating, centrifuging, and taking sedimentary facies at the bottom, i.e., extracts containing rich mercury compounds. The extraction method utilizes the ion liquid to extract the mercury compounds in the sediments, so that the extraction effect is good, the enrichment multiple is high, and the extraction method is simple, fast and environmental-friendly. The invention also provides a detection method for the mercury compounds in the sediments. According to the detection method, pretreatment is carried out on the sediments according to the extraction method provided by the invention, and then the obtained extracts are detected by combined use of high-performance liquid chromatography and cold atomic fluorescence spectrometry. The detection method has the advantages of fastness, accuracy, stability, sensitivity and the like and is applicable to daily environmental monitoring.