83results about How to "Measurement time is short" patented technology

The invention relates to an optical parameter detection method of low-radiation coated glass, wherein the low-radiation coated glass is SnO2:F/SiCxOy, 0<x<1, and 1<y<4. The invention belongs to a coated glass detection field. On basis of obtaining a spectroscopic ellipsometry of SnO2:F/SiCxOy energy saving coated glass, the method introduces a five-layer film structure and an optical dispersion equation, returns an actually-measured spectroscopic ellipsometry by iteration, and finally obtains a film structure of the SnO2:F/SiCxOy coated glass and optical parameters of each layer. By the method, on-line real time monitor of optical performances of the coated glass can be implemented. The method can obtain an accurate film structure and the optical parameters only by optical test means, has advantages of no damage on a sample, small time consuming for measuring, simple measuring method, and no special requirement on a sample surface to be measured, and is very suitable for performance detection of the SnO2:F/SiCxOy energy saving coated glass.

The invention belongs to the technical field of food detection, and particularly relates to whey protein content predication models based on a cow milk dielectric property and an establishment method thereof. In order to overcome the disadvantages of a traditional whey protein content measuring method and lay a foundation for development of a quick, efficient, accurate and online milk quality detection instrument, the mutual relation of the cow milk whey protein content and dielectric parameters (namely relative dielectric constant and dielectric lose factor) of milk whey protein is researched based on the cow milk radio frequency/microwave dielectric property, and the cow milk whey protein content predication models are established on the basis of the mutual relation. The two whey protein content predication models based on the cow milk dielectric property are provided, and the establishment method of the models is given. Verification results show that determination coefficients of the two models reach to 0.998 and 0.997 respectively. The new method is provided for related instrument development, and has the characteristics of high speed, high efficiency, accuracy and online measurement.

The embodiment of the invention discloses an electric vehicle insulation resistance measurement method and device, a vehicle and a storage medium. The method comprises the following steps: determininga first insulation voltage of a positive electrode insulation resistor and a second insulation voltage of a negative electrode insulation resistor of a vehicle-mounted battery; according to the firstinsulation voltage and the second insulation voltage, measuring resistors with preset resistance values are connected to the two ends of the positive electrode insulation resistor or the negative electrode insulation resistor in parallel; after the measurement resistor is connected in parallel, sampling the voltage at the two ends of the positive insulation resistor and the voltage at the two ends of the negative insulation resistor within a first preset time to determine a first estimated voltage of the positive insulation resistor and a second estimated voltage of the negative insulation resistor; and determining negative insulation resistance and negative insulation resistance according to the first insulation voltage, the second insulation voltage, the measurement resistance, the first estimation voltage and the second estimation voltage. According to the embodiment of the invention, the steady-state voltage estimation value is solved through the sampling data, the sampling speedis accelerated, and the measurement time consumption of the insulation resistance is reduced.

The invention relates to an optical parameter detecting method for Si-based buffer layer coated glass, and belongs to the field of coated glass detecting. A buffer layer coating film is made of SiCxOy, wherein x is larger than 0 but smaller than 1, and y is larger than 1 but smaller than 4. According to the method, on the basis of obtaining an elliptic polarization spectrum of the SiCxOy buffer layer coated glass, a three-layer film layer structure and an optical dispersion equation are introduced, the elliptic polarization spectrum is actually detected through the iteration in a regression mode, a film layer structure of the SiCxOy coated glass and optical parameters of all layers of the film layer structure are obtained lastly, and the optical performance of the coated glass is monitored on line according to the method. According to the method, the film layer structure and the optical parameters of a thin film can be accurately obtained according to the elliptic polarization optical testing means, a sample is not damaged, time for measurement is short, the measuring method is simple and convenient to conduct, the special requirement for the surface of a measured sample does not exist, and the method is very suitable for detecting and monitoring performance of the energy-saving SiCxOy coated glass.

The invention relates to the field of building of nuclear power stations, and provides an installation method of lower reactor internals in an AP1000 nuclear power station, which aims at decreasing difficulty, shortening time and reducing risk. The installation method comprises the following steps of arranging RV measuring control points and RV measuring points; arranging reactor internal control points and reactor internal measuring points; using a laser tracking instrument to measure the measuring points, establishing a cylinder reference simulation coordination system and a basic model of a pressure container in three-dimensional modeling software according to the measuring data, and establishing an installation model of the lower reactor internals; importing the installation model of the lower reactor internals into the basic model of the pressure container, and performing centering and pipe nozzle pairing; analyzing and calculating to obtain processing data of a positioning embedding block and an energy absorber support column, and processing the positioning embedding block and the energy absorber support column; for the lower reactor internals, lifting in for three times, and lifting out for two times, so as to complete the installation of the lower reactor internals. The installation method of the lower reactor internals in the AP1000 nuclear station has the advantages that the accuracy is high, the difficulty is low, the time is short, and the risk is low.

The invention relates to the field of accelerated corrosion research of nonferrous metal soil, in particular to an accelerated corrosion test device for the nonferrous metal soil. The accelerated corrosion test device is used for detecting and judging the corrosion degree of the soil in a test region to a metal material. A corrosive medium is placed in a conductive capacitor of the device. An upper rubber eraser and a lower rubber eraser are plugged at the upper part and the lower part of a metal pipe respectively. The metal pipe is arranged in the corrosive medium in the conductive capacitor. A direct-current positive terminal is connected to the upper end of the metal pipe and connected with an anode of a direct-current power supply through a lead wire. A direct-current negative terminal is arranged on the outer side surface of the conductive capacitor and connected with a cathode of the direct-current power supply through the lead wire. The corrosion of the nonferrous metal soil is accelerated through an external direct current, thus facilitating quick judge of the corrosion degree of the soil in the test region to the metal material. Related data of metal soil corrosion (weight loss) can be quickly obtained in 24 hours. The accelerated corrosion test device is simple in structure and convenient in measurement, is not limited by regions and is convenient to carry.

A method using a laser tracker to measure the aspherical surface peak curvature radius belongs to the technical field of optical testing. The laser tracker is used for acquiring aspherical coordinate according to a specific mode, and the aspherical surface peak curvature radius can be obtained through data processing and optimized search algorithm. The method is a novel method for measuring the aspherical surface peak curvature radius, is suitable for in-place measurement of the aspherical surface peak curvature radius in manufacturing and processing aspherical surfaces and in particular has important application values on measurement of the large-bored-diameter aspherical surface peak curvature radius.

The invention belongs to the technical field of display panel detection, and discloses a method, a device and a system for remotely measuring a Flicker scintillation value of a liquid crystal module.The method includes: carrying out continuous image capturing on a display image of the liquid crystal module under a certain common electrode voltage; obtaining the average brightness of the image frames, obtaining the change relation of the brightness with the number of collected frames or time, i.e., the time domain signal of the brightness, obtaining the spectrogram of the brightness through the time domain signal, and obtaining the Flicker scintillation value of the liquid crystal module to be detected under the common electrode voltage through the amplitude of the specific frequency wave.The device comprises equipment for continuously capturing images of a liquid crystal module under a certain common electrode voltage, A calculation processing module used for calculating the averagebrightness to obtain a time domain signal of the brightness, A Fourier transform module used for carrying out fast Fourier transform on the time domain signal of the brightness, and A Flicker scintillation value calculation module used for calculating a Flicker scintillation value. according to the method and the system, the Flicker scintillation value of the display screen can be remotely measured, and the method and the system are used for monitoring the flicker degree of the liquid crystal display screen in real time in a panel production line.

The invention provides a parallel plane distance measurement device, which is characterized by comprising a bottom plate, a rotation table, a positioning support and a distance measurer, wherein a bidirectional adjusting measurement device is arranged on the positioning support; the rotation table can move in relative to the bottom plate to drive the bidirectional adjusting measurement device to rotate; and the distance between probes of the bidirectional adjusting measurement device is measured via the distance measurer. The invention also discloses a parallel plane distance measurement method. By adopting the bidirectional adjusting rotation table-type plane measurement device, the contact-type measurement precision is improved, and time consumption for measurement is reduced. The included angle between a measurement probe connection line and the measurement plane can be ensured via the measurement device, a measurement contact force can be adjusted online and consistency can be ensured to be good, and the device and the method can be applied to high precision contact-type parallel plane measurement in narrow space.

The invention relates to a mechanical part angle-nondestructive precision measurement instrument and a precision angle measurement method. The instrument comprises a measurement device and two clamping devices, wherein the two clamping devices are mounted at the left and right ends of the measurement device. According to the instrument, the difficulties that angles of parts are measured by means of existing angle measurement equipment, existing measurement equipment is easy to deviate to cause inaccurate measurement during the measurement, angle data only can be read on the spot, the squareness measurement is troublesome, the existing angle measurement equipment is heavy, complicated and not easy to carry, and the time consumed by the measurement is long can be solved; a function of carrying out nondestructive angle measurement on measured parts can be realized; surfaces of the measured parts are sucked to carry out measurement so that the condition of position deviation during the measurement does not occur; during data recording, the equipment can be taken up to read carefully, so that the squareness measurement process is simplified; and the instrument has the advantages of being nondestructive in measurement, convenient to carry and short in measurement consumed time.

The invention relates to the field of construction of nuclear power stations. In order to reduce the workload, shorten the production time and improve the production precision, the invention provides a method for manufacturing a positioning insert for reactor internals in an AP1000 nuclear power station. The method comprises the following steps: arranging an RV control point and an RV measuring point; arranging a reactor internal control point and a reactor internal measuring point; measuring the measuring points by utilizing a laser tracker, establishing a cylinder reference simulation coordinate system and a base model of a pressure container in three-dimensional modeling software according to the measurement data, and establishing a mounting model of a lower internal; guiding the mounting model of the lower reactor internal into the base model of the pressure container, aligning, and pairing pipe nozzles; and analyzing and calculating processing data of a positioning insert, and processing the positioning insert according to the processing data. The method for manufacturing the positioning insert for the reactor internal in the AP1000 nuclear power station is high in manufacturing precision, small in workload and short in time consumption.

The invention relates to an inner diameter lossless intelligent tightness measuring system for a mechanical part, the system comprises a measuring device and an adjusting device, and the adjusting device is mounted at the front end of the measuring device. The existing difficulties that the staff need to use existing tools while measuring the inner diameter of the part, the measurement needs to beread on the site when the existing tools record the length of the inner diameter, the measurement is read in the part so that the data are not accurate, the existing measuring tools are heavy, complicated and not easy to carry, the measurement time is long and the like can be solved, and the system has the advantages that the function of measuring the inner diameter of the part can be realized, the measurement is not needed to be read on the site during data recording, the data accuracy is improved, lossless measurement is realized, the operation is simple, the system is convenient to carry,the measurement time is short and the like.

The invention relates to an equivalent parameter measuring method and device of an ultrasonic transducer and a controller. The method comprises the following steps: acquiring an initial frequency sweeping interval, and performing frequency sweeping on the ultrasonic transducer at a first step length in the initial frequency sweeping interval so as to acquire a first half-power point and a second half-power point of the ultrasonic transducer; wherein the first step length is an increasing step length; performing frequency sweeping on the ultrasonic transducer at a second step length in a target frequency sweeping interval to obtain a first feedback electrical parameter set of the ultrasonic transducer; the target frequency sweeping interval is a frequency band between the first half-power point and the second half-power point; and obtaining equivalent parameters of the ultrasonic transducer according to the first feedback electrical parameter set. By adopting the method, the time consumption for measuring the equivalent parameters of the ultrasonic transducer can be shortened, and rapid measurement is realized.

The present invention discloses a one-piece terminal application-based hardness detection method, an integrated terminal machine is set, the integrated terminal machine includes a measuring head, a camera, a camera sensor component and a data processor; the terminal machine is turned on, the measuring head is placed on a test sample, a detecting force is began to load; the camera shoots and gets an impress image, and the impress image is passed back to the data processor by the camera sensor component; detecting force preset load is complete, full load phase is began; the full load phase is completed, the measuring head returns, a camera sensor synchronously stop working; data of the passed-back image is processed by the data processor, and the hardness value of the sample is calculated. The method effectively use application an integrated portable device, is convenient for measuring of hardness of metals of different sizes, different volumes or shapes, and data processing and image processing are synchronously achieved, the measurement time is effectively shortened, the measurement cycle is shortened, and the is efficiency improved.

The invention discloses an underwater grouting measurement device and method for an offshore wind power jacket foundation by a pile-first method, and belongs to the technical field of offshore wind power engineering. The underwater grouting measurement device for the offshore wind power jacket foundation by the pile-first method comprises a flange plate, a pile leg, a conical head, a first grouting pipe, a second grouting pipe, a first annular cavity, a second annular cavity, a measurement mechanism and a sealing ring, wherein the two grouting pipes penetrate through the flange plate and extend into the pile leg; the first annular cavity and the second annular cavity are formed in the lower part of the inner side of the pile leg; the sealing ring sleeves the outer side of the bottom of thepile leg; and the measurement mechanism comprises a scale mark post and a buoyancy ball. The device is simple in structure, low in material consumption and reusable. The grouting measurement method is simple and convenient in measurement process, does not damage a pile, is short in measurement time, and saves a large amount of time and cost. The position of a grouting material can be known by observing the scale of the mark post on the water surface, and whether slurry leakage occurs or not is monitored in real time, so that underwater observation by a diver can be reduced or even avoided.

The invention discloses a method for rapidly and accurately measuring the specified length of low-cost steel. The method includes the work procedures of datum orientation, measurement and standard comparison, firstly, a datum sheet is temporarily fixed to one end of the detected steel, tightly attached to the cut section of the detected steel, and kept parallel to the cut section, and the face, tightly attached to the detected steel, of the datum sheet serves as a measurement datum plane; a laser length measuring instrument is tightly attached to the other end, where the datum sheet is not fixed, of the detected steel, a measuring face of the laser length measuring instrument is kept parallel to the cut section, measurement can be conducted, the distance between a point, emitting lasers, of the laser length measuring instrument and the datum plane at the other end is the measuring distance, and the datum sheet is detached after measurement is conducted; a measurement result is recorded and compared with a standard so that whether the actual length of the steel meets the requirement for the specified length of the standard or not can be judged. The method for rapidly and accurately measuring the specified length of the low-cost steel can be conducted through single-person operation, measurement efficiency, stability and stability are comprehensively improved, investment is small, the method can be used for a long time, and the popularization value is high.

The invention relates to a magnetic flux crosstalk calibration method and device, computer equipment and a storage medium. The method comprises the steps that N groups of primary frequency tests are carried out on a quantum bit chip, N frequency sets are obtained, each frequency set comprises the measurement frequency of N quantum bits, and then the first magnetic flux crosstalk intensity and the second magnetic flux crosstalk intensity are determined according to a first magnetic flux, a second magnetic flux, the measurement frequency of each quantum bit and a target function, wherein the primary frequency test comprises the steps of inputting a first magnetic flux to a first quantum bit, inputting a second magnetic flux to a second quantum bit, and obtaining a measurement frequency of each quantum bit on a quantum bit chip; the objective function is used for representing the function relationship among the input magnetic flux of the quantum bits, the magnetic flux crosstalk intensity among the quantum bits and the calculation frequency of the quantum bits. Through the above mode, the measurement time magnitude of the measurement frequency is reduced from MN2 to MN, the measurement time consumption is greatly shortened, and the calibration efficiency is improved.

The invention discloses a method for adjusting the perpendicularity of a sleeve of an AP1000 refueling machine, which is characterized by comprising the following steps of: 1, adjusting the perpendicularity of an outer sleeve; 2, adjusting the levelness of an inner sleeve balance arm; 3, adjusting the concentricity of the inner sleeve and the outer sleeve; 4, adjusting the gap between the inner sleeve and the guide wheel and ensuring that the guide wheel assembly is on the same plumb line; and 5, carrying out acceptance check. By means of the method, the perpendicularity of the outer sleeve can be ensured, it is ensured that the guide wheel is installed on a plumb line, it is ensured that the gap between the guide wheel and the inner sleeve meets the drawing requirement, and the operation perpendicularity and friction force of the inner sleeve can also meet the requirements.