66results about How to "Realize online real-time measurement" patented technology

The invention discloses an airfoil model force measurement system comprising a pair of supports, a pair of connecting bases, a drag measurement scale, a drag and pitch moment measurement scale, a pair of connecting rods, and a pair of lift measurement devices. The supports are arranged vertically. The connecting bases are respectively arranged on the supports in such a way that the connecting bases can slide along the supports without friction loss. The drag measurement scale is connected to one connecting base. The drag and pitch moment measurement scale is connected to the other connecting base. One end of one connecting rod is connected to the drag measurement scale, one end of the other connecting rod is connected to the drag and pitch moment measurement scale, and the other ends of the connecting rods are connected to the front end of an airfoil model to support the airfoil model between the supports. The lift measurement devices are respectively arranged on the supports, and the lift transfer components of the lift measurement devices are respectively connected to the connecting bases. A double-support system is adopted, and the airfoil model is supported between the supports. The system is of high support rigidity, and the airfoil model has little deformation under the action of gravity and wind load.

The invention relates to automatic corrugated pipe welding equipment for a transformer and a welding method thereof, and belongs to the welding technical field of a corrugated pipe for a transformer. The automatic corrugated pipe welding equipment for the transformer comprises a rotary workbench, a two-dimensional numerical control platform, a laser outline measuring instrument, an R axis, a welding machine tool and a control system; the rotary workbench is fixed on the workbench surface of the machine tool; one end of the R axis is arranged on the welding machine tool body in a sliding way, and both sides of the other end of the R axis are respectively provided with the laser outline measuring instrument and the two-dimensional numerical control platform which slides along the R axis; a welding torch is connected onto the two-dimensional numerical control platform in a sliding way; the laser of the laser outline measuring instrument is in parallel with the axis of the welding torch; the rotary workbench, the two-dimensional numerical control platform and the welding machine tool body are respectively connected with the controller of the control system through motors; and the laser outline measuring instrument is connected with the industrial computer of the control system. The automatic corrugated pipe welding equipment for the transformer and the welding method thereof solvethe difficult problem of the manual welding of a large thin-wall corrugated pipe, reduce the labor intensity of a welder, improve the production efficiency, and simultaneously ensure the uniformity and the stability of the welding quality.

The invention relates to a measurement device for volume deformation of foam concrete under a condition of steam curing, and aims at solving the problems that in the prior art, under the environment of steam curing, measurement for the volume deformation of the foam concrete in the early period is inaccurate and the continuous measurement for deformation of the foam concrete can not be achieved. The device includes a box cover, a box body, a heating water tank, a plurality of temperature sensors, automatic windshield wiper components, a computer, a connecting component, support bases, a temperature control box, two supports, two beams, multiple separation supports, multiple heating pipes, multiple reflection targets, a plurality of debugging modules and multiple laser displacement sensors, wherein the bottom of the box body is provided with the heating water tank and the temperature control box, the top of each debugging module is provided with a refraction target, the automatic windshield wiper components are arranged on the box cover, the laser displacement sensors are connected with the computer through circuits, and each temperature sensor is connected with the temperature control box. The measurement device for the volume deformation of the foam concrete under the condition of steam curing is applied to the field of concrete deformation measurement.

The invention provides an optical enhancing cavity and sensing device for measuring online gas content in a petrochemical hydrogen-carrying pipe. The sensing device comprises a sample cell provided with a gas inlet and a gas outlet; left and right ends of the sample cell are provided with a first reflector and a second reflector respectively, wherein both the first reflector and the second reflector comprise a spherical face, the middle of which is a circular plane; the first reflector is provided with a laser inlet for incoming of laser; the side of the sample cell is provided with a window glass plate connected with a Raman signal collecting unit for transmitting light. The optical enhancing cavity is composed of special reflectors, a double F-P cavity structure of the spherical face and circular plane is formed, laser power is greatly enhanced, which is unreachable for other devices, Raman signal light is enhanced by multiple orders of magnitude so that sensitivity and precision are very high, all-optical measurement is achieved on the petrochemical pipe, intrinsic safety is achieved, and online real-time measurement is also achieved.

The invention relates to a device and a method suitable for measuring a geometric parameter of a superplastic non-spherical free bulge in a superplastic non-spherical free bulge experiment and also suitable for measuring a shape change geometric parameter of an axisymmetric rotating curved surface. The device comprises a measured bulging part, an annular light source, a video camera, a PC machineand an adjustable holder, wherein the annular light source is coaxial with a lens of the video camera and is positioned between the measured bulging part and the video camera; the annular light sourceand the video camera are arranged on the adjustable holder; and the PC machine controls the video camera to continuously acquire images of the measured bulging part and processes the acquired imagesto measure and calculate the geometric parameter of the measured bulging part. Compared with other measuring methods, the measuring method takes the measured bulging part images as information carriers and extract available information by analyzing and processing the measured bulging part images, thereby achieving the purpose of measurement; in addition, the invention has the advantages of non-contact, abundant obtained information, high measuring precision and measuring speed and the like; and the invention can realize on-line real-time measurement.

The invention relates to a detection method for the surface roughness of a mobile phone housing. Because there are different roughness and real-time online monitoring in detection of a mobile phone housing at different stages in an automatic polishing process, so the method comprises steps of firstly sampling the division of surface regions of the mobile phone housing; carrying out preprocessing of zooming, graying and binaryzation on sampled images and using median filtering to reduce interference to the images by noise; and finally, carrying out edge detection according to an adaptive edge detection Canny method, extracting a pixel point line spacing difference value of a peak and a trough, and carrying out curve fitting and weight correction to obtain a quite correct surface roughness grade.

The invention discloses a plane polygon object measuring method based on SLAM and a machine-readable storage medium. By utilizing the posture information and depth information provided by SLAM, the vertices are mapped into the world coordinate system with the contour information of the video frame image, thus, the length and the area of the plane polygon object are calculated, the on-line real-time measurement is realized, and the method is more suitable for the mobile terminal, and can be used in augmented reality and virtual modeling of the mobile terminal, and can bring better AR experiencefor users, and is more convenient for people to demand for measurement in daily life. Moreover, the triangulation method can be used to improve the robustness of depth information, and two contour extraction methods and iterative method can be used to obtain a wider range of applications, which can meet the needs of image detection in different lighting scenes, and the measurement accuracy is high, and the measurement results are accurate.

The invention discloses a method for measurement of two-phase flow gas holdup based on an ultrasonic two-frequency signal. The method comprises the steps of: arranging an ultrasonic transmitting probe and an ultrasonic receiving probe respectively at both ends of a section of straight pipeline needing two-phase flow gas holdup measurement; by means of the ultrasonic transmitting probe, generating two ultrasonic signals that are propagated along the fluid in the straight pipeline and have the excitation frequencies of a first excitation frequency and a second excitation frequency respectively; detecting the characteristic parameters of the received two ultrasonic signals by the ultrasonic receiving probe; and calculating the gas holdup according to the first excitation frequency, the second excitation frequency, the pure liquid propagation velocity, the resonant frequency of bubbles in the two-phase flow, the bubble vibration damping and the characteristic parameters of the two ultrasonic signals. The ultrasonic probes are installed on the outer wall of the straight pipeline, and are not needed to be arranged in the two-phase flow in the pipeline, thus realizing non-contact measurement of the two-phase flow gas holdup. The data processing amount is very small, and flow of the two-phase flow in the pipeline is not hindered in the measurement process.

The invention discloses a quick measurement system for a circular trace motion error based on sweep frequency laser interference. The system comprises a sweep frequency laser, a target lens, a detection mechanism and a general spectroscope, wherein the detection mechanism comprises an X-direction detection mechanism and a Y-direction detection mechanism; each detection mechanisms comprises a sub-spectroscope, a reflector, a photoelectric detector, a counter and a processor; a first light splitting signal faces to the target lens, and a second light splitting signal faces to the reflector; thefirst light splitting signal is reflected by the target lens to form a first reflected signal; the second light splitting signal is reflected by the reflector to form a second reflected signal; and the first reflected signal and the second reflected signal are converged at the sub-spectroscope to generate an interference signal. The invention has the advantages that: the measurement result is notinfluenced even when the detection light path is blocked during the measurement, absolute displacement can be measured, and the instrument is easy to calibrate and correct.

The invention discloses an MEMS gyroscope online frequency difference identification method based on noise power spectrum estimation. The method comprises the steps of determining a power spectrum theoretical curve of the gyroscope harmonic oscillator mechanical thermal noise at the output end of a detection mode according to the Q value of the detection mode and a preset resonant frequency; performing voltage sampling and Fourier transform analysis on the detection mode in a normal working state of a gyroscope to obtain a power spectrum curve of an output end signal; performing cross-correlation operation on the power spectrum theoretical curve and the power spectrum curve of the output end signal to obtain a cross-correlation result curve, and determining the hysteresis quantities corresponding to two peak values in a cross-correlation analysis result; determining the resonant frequency of the detection mode by using the obtained lag value and the known gyroscope driving mode resonant frequency; and calculating to obtain the frequency difference of the working mode of the gyroscope. According to the present invention, on the premise that the normal working state of the MEMS gyroscope is not affected, the modal frequency information is extracted on line in real time from the mechanical thermal noise inevitably existing in a harmonic oscillator, and the modal frequency difference recognition is achieved.

Soft measurement method of turbine steam flow, using DCS system to measure turbine inlet steam pressure and turbine inlet steam temperature, select the turbine speed, turbine extraction temperature, and pressure at the same time as the input variables of the neural network model; select The backpropagation (BP, Back Propagation) neural network of more than three layers of structure gets the hourly average value to input variable, and carries out maximum error diagnosis, above-mentioned each variable is carried out normalization process; In described neural network model, input layer The number of nodes is i (i=5), the number of nodes in the hidden layer is j (2-100), and the number of nodes in the output layer is k (k=1-100); through the DCS system, the data of each input variable is collected in real time and continuously, and the training Good weights and thresholds are brought in and calculated, and denormalized to obtain the real-time prediction value of the steam flow of the turbine.

The invention relates to a cereal moisture content online device based on dielectric parameters and a measurement method using the cereal moisture content online device. The cereal moisture content online device comprises a coaxial column-type dielectric parameter measurement sensor and a measure controller, wherein the coaxial column-type dielectric parameter measurement sensor comprises an inner electrode assembly, an outer electrode, a polytetrafluoroethylene insulating layer, a shielding layer and a polytetrafluoroethylene protecting layer which are sequentially and coaxially mounted in a multilayer nesting manner from inside to outside; and the measurement controller is electrically connected with the coaxial column-type dielectric parameter measurement sensor through a double-layer shielding type coaxial cable. According to the cereal moisture content online device, the moisture content of a flowing cereal in a coaxial column-type electrode accommodating cavity is calculated by measuring the dielectric constant epsilon', the dielectric loss epsilon'' and the temperature T of the cereal, and the measurement error caused by the bulk density fluctuation of the cereal in the electrode accommodating cavity is corrected in an application range by virtue of a bulk density correction formula (shown in the description), so that the measurement precision is improved, and the online real-time measurement of the cereal moisture content is realized.

The invention provides an underground fluid identification device based on a distributed optical fiber sensing technology and a measurement method. The underground fluid identification device comprises a ground high-power electromagnetic excitation source and an armored optical cable, and the armored optical cable is arranged outside or inside a metal sleeve or fixed outside or inside an oil pipe;three-component optical fiber electric field sensors and three-component optical fiber magnetic field sensors are uniformly distributed in the armored optical cable; and the armored optical cable isconnected with a composite modulation-demodulation instrument on the ground. The ground high-power electromagnetic excitation source continuously excites forward and reverse square wave source signalswith the duty ratio of 1 to the underground, and the proportion of water, oil and gas in multi-phase fluid at each measuring point position is determined according to the actually measured true resistivity value of the fluid inside and outside the metal sleeve or inside and outside the oil pipe; and online real-time measurement, identification and long-term dynamic monitoring of change rules of underground fluid in the development and production process of an oil and gas production well or a liquid injection displacement well are achieved.

This invention relates to flux measurement device and relates to one solid and liquid flux capacitor real time test device and method, which comprises upper and down capacitor sensor circuit, intensity forward channel circuit, power circuit, display circuit, and correlator circuit. The test device system is also located with central process circuit; liquid and solid flux capacitor test device and method to realize the online real-time measurement and to display the flux.

The invention relates to a battery SOH (State of Health) estimation method and equipment, which are applied to the technical field of batteries, wherein the method comprises the following steps: acquiring online data of a tested battery; calculating to obtain a model input variable of the tested battery according to the online data, wherein the model input variable is the characteristic quantity extracted according to an IC curve of the tested battery; and inputting the model input variable of the tested battery into a pre-trained battery SOH judging model to determine SOH classification of the tested battery, wherein various kinds of SOH classifications are provided. The SOH of the battery can be directly obtained according to the online data, the time for testing in a laboratory is saved, the test period is shortened, the model input variable is finally obtained through calculation of the online data, the model input variable is input to the battery SOH judging model, so that the SOHclassification of the SOH of the tested battery can be directly determined, real-time judgement of the SOH of the battery is realized, and convenience is brought for operation.

The invention relates to an online detection system and method for soluble brown carbon of atmosphere, belongs to the technical field of environment monitoring, and solves the problem that an offlinesoluble organic carbon detection system in the prior art is complex in pre-treatment, low in time resolution, low in accuracy and incapable of dependent measurement. The system comprises a first detection subsystem and a second detection subsystem, the first detection subsystem comprises a first sample feeding unit, a first diffusion corrosion unit, a first aerosol particle collection unit, a first optical property detection unit and a master organic carbon analyzer connected successively, the first aerosol particle collection unit is connected with a ultrapure water inlet pipe, and the firstoptical property detection unit and the master organic carbon analyzer are both connected with a data processing unit. The system and method can be used to detect the optical properties of soluble brown carbon in the atmosphere aerosol particles online in real time, outfield observation can be realized, and the real-time change and spatial distribution of the optical properties of the soluble brown carbon can be researched.

The invention relates to the technical field of sheep nutrition research, belongs to a testing device of sheep digestion and metabolism, and particularly relates to a sheep digestion and metabolism cage capable of automatic weighing. A top hurdle is arranged at the top of the cage; side steel plates are arranged at the two sides of the cage; a trough door plate is arranged in the front of the cage; the rear part of the cage is provided with a rear board; a trough and an automatic water trough cavity are arranged side by side at the front end of the bottom of the cage; and the rear end of the bottom is provided with a manure leaking floor. The bottom of the cage is provided with a level-adjustable loadometer foot bench; a quantitative feeding machine fixedly connected to the outside is arranged vertically above the trough; a discharging pipe of the quantitative feeding machine is provided with a sheep number recognizing sensor; an automatic water trough and a water pipe, fixedly connected to the outside, are arranged vertically above the automatic water trough cavity; and the water pipe is provided with a flowmeter. In the cage, a metering cup of the quantitative feeding machine has the maximum capacity of 10kg, and the feeding accuracy can reach 10g. The cage has the maximum weighing of 200kg, and the weighing accuracy can reach 50g.

The invention discloses a multi-laser light spot position detecting device and method based on a linear array CCD and an FPGA. The device comprises a laser emitting module, a CCD sensor module, an FPGA signal processing module, a data storage and transmission module and a host computer. The method comprises the following steps that: the laser emitting module vertically emits a plurality of laser beams to the surface of a to-be-tested piece; the CCD sensor module collects laser reflected by the to-be-tested piece and carries out photoelectric conversion; the FPGA signal processing module performs amplification and analog-to-digital conversion on an analog electrical signal, carries out positioning of centers of multiple laser light spots, and transmits the processed data to the data storageand transmission module and the host computer; and the host computer calculates position information corresponding to each light spot by using a laser triangulation method according to the positioning result, geometric information of the to-be-tested piece is obtained, and a result is outputted. The multi-laser light spot position detecting device and method have advantages of non-contact effect,high sensitivity, high precision, good real-time performance nd high degree of automation and the like; the requirements of industrial production can be met; and the cost is low and the structure issimple. The multi-laser light spot position detecting device and method has the broad application prospects.

The invention relates to a digital signal time jitter measurement method and system, and the method comprises the steps: A, completing the first sampling in one period of a measured digital signal through a sampling pulse with an adjustable period, and enabling the width of the sampling pulse to be smaller than one period of the measured digital signal; B, broadening and quantifying the sampled pulse, and recording the parameters of the current sampling; C, repeatedly sampling in one period of the measured digital signal, sequentially increasing the stepping values of the sampling pulse periods with the times corresponding to the sampling times to the periods of the sampling pulses during each subsequent sampling, and repeating the step B after each sampling until the predetermined times of sampling in one period of the measured digital signal is completed; and D, performing numerical calculation of time jitter according to all the sampling parameters to obtain a result of time jitterof the digital signal. According to the method, a measurement system can be modularized, online measurement can be realized, and the difficulty and the cost for quantifying the sampling pulse amplitude are effectively reduced.

The invention discloses an online primary air concentration measuring system and a measuring method. The measuring system comprises a speed measurement unit, a force measurement unit and a concentration measurement and calculation unit, wherein the speed measurement unit comprises at least one group of rod sensors; each group of rod sensors comprises two electrostatic measuring rods; the two electrostatic measuring rods are arranged in parallel at the upstream and downstream of a to-be-measured primary air pipe; the force measurement unit comprises at least one group of force measurement devices; each group of force measurement devices comprises a force measuring chip, a force measuring rod and a force sensing element; the force sensing elements are arranged on corresponding force measuring rods; the force measuring chips are arranged at tail ends of the corresponding force measuring rods and connected with the force sensing elements; and the concentration measurement and calculation unit comprises a pre-amplification circuit, an A / D conversion module and a processor; the electrostatic measuring rods and the force sensing elements are sequentially connected by virtue of the pre-amplification circuit, the A / D conversion module and the processor. The online primary air concentration measuring system disclosed by the invention is capable of effectively realizing online real-time measurement, and measurement of supported primary air powder speed, relative concentration, relative flow and other parameters.

The invention discloses a piezoelectric ultrasonic microinjection method based on the elastic modulus of an oocyte. The microinjection method comprises the following steps: S1, measuring the elastic modulus of the oocyte by using a capillary effect balanced pressure model; S2, calculating the piezoelectric microinjection parameter according to the elastic modulus; and S3, controlling the piezoelectric microinjection parameter of a piezoelectric ultrasonic microinjection needle to perform the microinjection on the oocyte under the auxiliary support of a targeted auxiliary sorption needle. By research on the relationship between the elastic modulus parameter of the oocyte and the piezoelectric ultrasonic microinjection parameter of the oocyte, the piezoelectric ultrasonic microinjection parameter is set in real time by using the elastic modulus of the oocyte measured in real time, and the personalized parameter microinjection of the oocyte is really realized.

The invention discloses a real-time online dynamic detection system for a pentachlorophenol degradation intermediate. The system comprises an excitation light source, a pentachlorophenol degradation reaction container, a chemical oxidation reagent container, a chemiluminiscence detection pond, a photoelectric multiplying tube and a signal analyzer host, wherein the pentachlorophenol degradation reaction container and the chemical oxidation reagent container are both communicated with the chemiluminiscence detection pond; and the photoelectric multiplying tube is used for converting light signals produced in the chemiluminiscence detection pond into electric signals; and the photoelectric multiplying tube is connected with the signal analyzer host, and the signal analyzer host is connected with a computer terminal. When the real-time online dynamic detection system is used, the online detection can be realized, the operation is simple, and a sample does not need to be subjected to processes of offline separation, online detection and the like, so that the detection speed is high, the working efficiency is improved, and the system is suitable for rapidly screening and evaluating pentachlorophenol degradation capacity of photocatalytic materials; and the system can be further used for tracking dynamic change of TrCBQ-OH and TCBQ online and tracking generation and degradation processes according to dynamic information.

The invention discloses a lithium battery rolling mill thickness gauge. The lithium battery rolling mill thickness gauge comprises a carbon steel bottom frame and the like. A marble mounting platform is arranged on the carbon steel bottom frame and connected with a linear module, one end of the linear module is connected with a servo motor, the marble mounting platform is connected with a guide roller longitudinal adjusting base, a guide roller transverse adjusting base is connected with the guide roller longitudinal adjusting base, guide rollers are connected with the guide roller transverse adjusting base, the guide rollers are located on the two sides of a marble C-shaped scanning frame, the marble C-shaped scanning frame is connected with the linear module, and a calibration piece, a calibration piece mounting plate and the like are arranged on the left sides of the guide rollers. The human resource cost is reduced, contamination to detection staff is avoided, online automation of detection is achieved, the coverage of measurement is larger, and precision is higher.

The invention relating to the technical field of oil well measurement discloses a measuring device for the liquid production capacity of an oil well and a measuring method thereof, thereby improving the measuring precision of the liquid production capacity of the oil well. The measuring device comprises an oil reservoir, a calibrating member, a liquid level detecting member, and a PLC device. Thecalibrating member is configured to load a predetermined volume of to-be-measured oil into the oil reservoir to determine a volume pulse equivalent of the to-be-measured oil in the oil reservoir. Theliquid level detecting member arranged in the oil reservoir is configured to detect the rising height of the to-be-measured oil in the oil reservoir and transform the rising height of the to-be-measured oil into the pulse number. The PLC device is connected to the liquid level detecting member. The measuring device for the liquid production capacity of an oil well and the measuring method thereofcan be used for realizing large-scale application of the liquid production capacity.

The invention discloses an on-line filter stack spectrometer, which comprises a ray sensitive unit formed by at least one diamond detector and a plurality of scintillator detectors in sequence in a stack manner, and a photoelectric conversion unit for receiving visible light signals generated by the scintillator detectors in the ray sensitive unit through optical fibers and converting the visible light signals into electric signals, an electronic system which is used for receiving current pulse signals generated by a diamond detector in the ray sensitive unit and electric signals output by the photoelectric conversion unit and processing the current pulse signals and the electric signals into digital signals, a deflection magnet which is used for deflecting high-energy electrons emitted along with X rays, and an aiming camera which is used for being aligned with an X-ray source. According to the invention, a ray sensitive unit adopts a filter disc stack mode formed by combining a diamond detector and a scintillator detector, and an electronic system is combined to process and adopt an electric signal at a high speed, so that the on-line real-time measurement of a wide-energy-band (10keV-10MeV) pulse type X-ray source energy spectrum is realized.

The invention provides an online measuring device and method. The online measuring device is used for detecting the ingredients of heavy metal in water and the content of the ingredients. The online measuring device comprises a sampling guide pipe, laser sources, a measuring window, a laser intensity detecting instrument, a signal processor and an electromagnetic valve. Online real-time measurement for the heavy metal in water is achieved, the technology is used for real-time online measuring for the water quality state in a water purifier, the replacing state of a filter element in the water purifier can be effectively reminded, and a traditional unscientific count-down-type filter-element replacing method is changed. The measuring range of the online measuring device is ppb, the error is small, real time monitoring for the content of the heavy metal in water can be achieved, no chemical reagent needs to be added, and the online measuring device is simple and convenient.

The invention discloses a detecting method and a detecting device of three-phase fluid proportions and flow. A continuous pressure-detecting method is adopted to perform the detection. The device comprises a line pipe and seven pressure sensors. The line pipe comprises nine segments pipelines a diameter-enlarging diverter. The first, third, fifth, seventh and ninth pipeline are horizontal pipelines, and the second, fourth, sixth and eighth pipeline are vertical pipelines. The horizontal pipelines, the vertical pipelines and the diameter-enlarging diverter are communicated with one another in a certain manner. The pressure sensors are arranged at corresponding positions of the line pipe. The positions of the first, second, fourth, fifth, sixth and seventh pressure sensor are of right angles, and original flow vectors are turned to be zero. Temperature sensors are arranged at the input terminal and the output terminal of the detecting device. By the aid of the detecting method and the detecting device, three-phase fluid proportions and volume flow can be detected synchronously; the device is simple in structure, free of dynamic components, stable and reliable, and is adaptable to different environments easily, and detecting range limit is less. The invention further discloses a calculating method of the three-phase fluid proportions and the flow, and the calculating method is creative domestically and internationally.