336results about How to "Reduce cost of measurement" patented technology

The invention discloses a method for quickly measuring a blade of a large-sized water turbine, which is characterized by comprising the following steps: firstly, sticking a mark point to the surface of the blade, then shooting a group of photos from different angles as measured primary data, and inputting the data to a computer to carry out analytic processing; by carrying out image detection for the group of photos in a measurement software, identifying the mark point in each photo and positioning the center of the mark point, and matching the mark points with the same name; finally, reconstructing a three-dimensional coordinate of corresponding object points according to a plurality of two-dimensional coordinates of the mark points, fitting a sparse framework model of a target by the reconstructed three-dimensional mark points, then scanning the surface of the blade block by block by using a binocular grating scanning method to acquire a local dense point cloud, and aligning the dense point cloud to an overall coordinate system according to the local mark points to acquire a dense point model of the blade; and by comparing the dense point model with a CAD designed model after aligning, calculating a three-dimensional processing error of the surface of a workpiece.

The invention relates to a human body measurement method, in particular to the non-contact human body measurement method for clothing design which belongs to the technical field of clothing design. The digital images of the front surface and the side surface of the human body are firstly obtained; the extraction of the image edges are carried out by adopting the color segmentation, the best threshold segmentation, the hole filling, the opening operation and the pixel communication image processing method, thereby obtaining the image edges of the front surface and the side surface of the human body; the human body measurement feature points and the lines are determined, the corresponding height and width measurement data of the human body for the clothing design are obtained by calculation; a mathematical model is established by applying the width and the thickness data of the human body to obtain the related circumference data, and the human body circumference measurement data for the clothing design is obtained by BP neural network simulation and regression prediction treatment. The method has simple device, convenient operation and low measurement cost, thereby being capable of meeting the requirements on the design and the production of the clothing industry and having broad popularization and application prospects.

The invention discloses a system for monitoring atmospheric particulates by utilizing social vehicles, and belongs to the technical field of environment monitoring. The system comprises vehicle-mounted monitoring equipment and a monitoring center, wherein the vehicle-mounted monitoring equipment is mounted on the social vehicle and is connected with the monitoring center through wireless transmission; the vehicle-mounted monitoring equipment comprises particulate monitoring equipment, a particulate monitoring sensor, a positioning module and a communication module; the particulate monitoring sensor is mounted on the particulate monitoring equipment; the particulate monitoring equipment is mounted on an outer part of the vehicle-mounted monitoring equipment; the positioning module is used for positioning vehicles; the communication module is used for connecting the vehicle-mounted monitoring equipment and the monitoring center. According to the device, real-time measurement is carried out by utilizing social vehicles, such as metro buses, long-distance cars, taxis and muck trucks, carrying the particulate sensor, so that the costs for measurement, including measurement cost, and energy consumption cost, road occupation cost and labor cost caused by special vehicles, are greatly reduced.

The invention provides a component different-surface-parallel-hole form and position deviation visual measuring method and device. The method comprises the following steps which are carried out in sequence: [1] binocular camera parameter calibration; [2] different-surface-parallel-hole feature analysis and treatment of a component entity image; [3] different-surface-parallel-hole match feature point extraction of the component entity image; [4] component different-surface-parallel-hole three-dimension information reconstruction, and analysis and calculation of form and position deviation parameters such as diameter, circular degree, hole pitch and depth distribution of holes. According to the invention, measurement of the component feature hole form and position deviation can be completed rapidly and effectively, precision requirements of high-precision measurement can be met, and advantages of simple measurement operation, low equipment maintenance cost and the like can be achieved.

To eliminate the necessity of a dedicated optical system and the flowing of fluorescent microparticles for aligning excitation light with a flat plate-shaped flow cell which internally includes a flow path, a microorganism testing apparatus includes: a first detector that detects fluorescence emitted from microorganisms flowing through a detection flow path when a microorganism detection unit included in a microorganism testing chip is irradiated with excitation light, and converts the fluorescence to an electrical signal; and a second detector that detects scattered light similarly emitted from the microorganisms flowing through the detection flow path, and converts the scattered light to an electrical signal. The alignment of the detection flow path is performed in the direction of the optical axis of the excitation light by controlling and moving a stage having the microorganism testing chip mounted thereon based on the intensity of fluorescence detected by the first detector.

The invention relates to a system for measuring half-wave voltage of a phase modulator and a measurement method. The measurement system comprises a laser generator, a polarization controller, a microwave signal generator, an optical interferometer, a power meter and a processor. The method comprises the following steps of: connecting a phase modulator to be measured into a detection system; determining working parameters of the system, and adjusting working conditions of the system; measuring optical power values under the condition of modulating microwave signals with different amplitudes, and comprehensively processing data; and measuring the half-wave voltage at different frequencies. By the system and the method, all the parameters measured at the same detection frequency are comprehensively processed by the characteristic of high resolution of modulation signals generated by the microwave signal generator to obtain a half-wave voltage value at the frequency, and the half-wave voltage value is circularly processed to obtain half-wave voltage values at various detection frequencies; and therefore, the system and the method have the characteristics that the system and the method are high in resolution of measurement frequency, the phase modulator has a plurality of measurement frequency points and a plurality of half-wave voltage measurement values and is high in accuracy, the using performance of a high-speed phase modulator can be exerted, the system and the method are systematical in measurement and low in measurement cost, and the like.

The invention relates to a micro-fluidic chip, a hemocyte analysis system and a hemocyte analysis method. The micro-fluidic chip comprises at least one detection flow channel, wherein each detection flow channel comprises a first sample inlet, a second sample inlet, a sample micro flow channel, an auxiliary solution micro flow channel and a convergence micro flow channel, wherein the sample micro flow channel is connected with the first sample inlet; the auxiliary solution micro flow channel is connected with the second sample inlet; the convergence micro flow channel is connected with the sample micro flow channel and the auxiliary solution micro flow channel; a small hole is formed in the convergence micro flow channel; and a first electrode and a second electrode are respectively arranged on two sides of the small hole. Hemocytes can be accurately counted by measuring sizes of hemocytes of a sample to be detected by detecting voltage change between the first electrode and the second electrode of the micro-fluidic chip, so that the measuring cost is greatly reduced, and the measuring efficiency is improved.

The invention discloses a movable inclinometer, and a method for measuring the horizontal displacement of stratum. The movable inclinometer comprises a measuring and reading instrument, a GPS position finder, an inclination measuring tube and an inclination measuring cable, the GPS position finder is connected with the top end of the inclination measuring tube, a movable probe is arranged in the inclination measuring tube, one end of the inclination measuring cable is connected with the measuring and reading instrument, the other end of the inclination measuring cable is connected with the movable probe, an accelerator chamber is arranged in the movable probe, an accelerometer sensor is arranged in the accelerometer chamber, and the movable probe ascends and descends along the inclination measuring tube under the driving of the inclination measuring cable. The method for measuring the horizontal displacement of stratum comprises the following steps: measuring the horizontal total displacement and the horizontal offset displacement by using the movable inclinometer, and calculating the horizontal displacement of the stratum according to obtained measured values. The movable inclinometer effectively shortens the boring depth, reduces the economy cost, solves the abuse of just working of previous inclinometers in a fixed hole measuring position under hypothesized conditions, allows measured data to accord with onsite practical conditions, and provides reliable basis for slope and ground pit support construction.

The invention discloses a wireless hollow inclusion strainmeter and a method for measuring ground stress. The wireless hollow inclusion strainmeter for measuring the ground stress is characterized in that a shell body of the wireless hollow inclusion strainmeter is sealed by epoxy resin, a base material of the shell body is composite ceramic, the wireless hollow inclusion strainmeter for measuring the ground stress comprises a strain measurement portion, an emitting portion and a guiding portion, wherein the strain measurement portion, the emitting portion and the guiding portion are all detachable and recyclable, a directional sensor, a power source and an emitting module are sequentially sealed on the rear portion of the wireless hollow inclusion strainmeter, resistance strain rosettes are inlaid in the middle along the same circumference of the wireless hollow inclusion strainmeter at intervals, and the strain measurement portion, the emitting portion and the directional portion of the wireless hollow inclusion strainmeter can be detached and separated. Three groups of strain rosettes and three groups of direction finders are arranged on the wireless hollow inclusion strainmeter. The strain rosettes and the direction finders are used for respectively transmitting collected signals to an amplifier, and then the signals enter an analog to digital (A/D) converter, analog signals are converted into digital signals, a singlechip is used for sampling, and data are sent out through a wireless module. The wireless hollow inclusion strainmeter for measuring the ground stress has integration and telemetering, and can be recovered and repeatedly used.

The invention provides a method for measuring shearing area of a rock structral plane in a direct shear test. The method comprises the following steps of: collecting an image; cutting and filling the image; converting the image into a grayscale image; selecting a gray threshold according to the obtained grayscale image of the rock structral plane; converting the grayscale image of the rock structral plane into a black and white binary image on the basis of the selected gray threshold; calculating percentage, namely percentage of the shearing area of the rock structral plane in the direct shear test, of the area of a white part in the area of the whole image; figuring out total actual area of the rock structral plane through using a graduated scale adopted during shooting as a reference object; and figuring out the shearing area of the rock structral plane in the direct shear test. According to the invention, defects of complicated operation, complicated steps, low working efficiency, large manual error and the like in the traditional measuring method can be solved; moreover, as the operation is simple, an important practical significance is obtained in reducing workloads of geologists, improving measuring accuracy and increasing working efficiency; meanwhile, as lower cost is achieved, the method for measuring the shearing area of the rock structral plane in the direct shear test, provided by the invention, is easy to be popularized.

The invention provides a method for measuring the focal length of a micro-lens array. By means of definition function fixed-focus analysis, the focal length of the micro-lens array is measured by applying the principle of grating diffraction light splitting, after parallel incident light passes through a grating, high-order diffraction light can be neglected due to low light intensity, emergent light is split into a 0-class light beam, a +1-class light beam and a -1-class light beam, and the focal length of the micro-lens array is measured by measuring the center distance between a 0-class light spot and a +1-class light spot of sub-apertures of micro-lenses after grating light splitting. Besides, a plurality of sub-apertures can be measured by acquiring images once through the method, and the method is suitable for measuring the focal lengths of the micro-lenses with more arrays. As grating light splitting angles are determined by grating periods and measured wavelengths, compared with a traditional turning angle measuring method, the method needs no turntable and is simple, convenient and easy in operation.

The invention relates to an electromagnetic wave detection method for grain pile water content. The method comprises the following steps of: firstly performing virtual layering on a grain pile; secondly, working out the dielectric constant space distribution by a layer-by-layer inversion algorithm and a well logging method; and finally obtaining grain pile water distribution according to a dielectric-water content model. The method of determining the grain pile water content by using electromagnetic wave to detect the grain pile dielectric constant avoids use of a large amount of sensors, is easy to detect the interior of the grain pile, and has the advantages of simple equipment and convenient operation. Because the well logging method is adopted, the measurement result is more accurate.

The invention provides an automatic real-time pulse measuring device and method for a threshold voltage parameter of a field-effect transistor. At a source signal generating end, a direct current voltage power supply used in measurement before is replaced by a programmed control multifunctional signal generating module; the programmed control multifunctional signal generating module is used for supplying pulse voltage to a grid and drain of a to-be-measured field-effect transistor, so that the pulse voltage of the grid has a higher peak change speed; and at a measuring end, an ampere meter used in measurement before is replaced by a high-speed voltage data acquisition module and a variable resistance structure, so that the measurement can be performed under the voltage changing more quickly. Thus, compared with the traditional measuring device, the automatic measuring device provided by the invention has the advantages of wider measuring range and more accurate measuring result. Besides, during the whole measuring process, the data of the high-speed voltage data acquisition module is received and stored by a computer control module, the drawing is automatically finished, and the test speed is accelerated.

The invention belongs to the technical field of blade measurement and discloses a blade in-situ contact type three-dimensional measurement device and method. The blade in-situ contact type three-dimensional measurement device comprises a working table, an X-directional motion platform, a Y-directional motion platform, a measurement mechanism and a rotating platform, wherein the X-directional motion platform is arranged on the Y-directional motion platform, and the Y-directional motion platform is arranged on the working table to form a two-dimensional motion platform; the measurement mechanismis arranged on the X-directional motion platform and moves in X and Y directions along with the two-dimensional motion platform; blades are mounted on the rotating platform and driven by the rotatingplatform to rotate. The blade in-situ contact type three-dimensional measurement method comprises maintaining constant-force contact between the measurement mechanism and the blades, reading the linear displacement of the measurement mechanism in the X and Y directions and the rotating angle theta of the blades through a grating rule and a rotary encoder, and performing coordinate transformationand bulb radius compensation to acquire the surface contour coordinates of the blades. The blade in-situ contact type three-dimensional measurement device has the advantages of being convenient to move, simple in measurement process and low in cost and can achieve precise in-situ measurement of the blades.

The present invention discloses a method for measuring the gain and noise coefficients of the erbium-doped optical amplifier; the measurement comprises the following steps that a DFB light source can be input into a filter through a variable optical attenuator; the output end of the filter is connected with an optical power meter to obtain the input power Pin of EDFA; the input end of the EDFA is suspended and the flat region of the ASE spectrum in the EDFA is utilized for obtaining the ASE power PASE which is in the filter band width from the optical power meter; the DFB light resource signal can be emitted into the EDFA through the variable optical attenuator and the signal amplified by the EDFA and the ASE mixing power Pout are obtained from the optical power meter through the filter; by alternating the variable optical attenuator value, the EDFA gain and noise coefficient curves can be calculated and described. The beneficial effect is that the present invention utilizes the flat region of the ASE spectrum in the EDFA to match with a band-pass filter which can fast and accurately calculate EDFA gain and noise coefficients. The test method of the present invention is simple which greatly reduces measurement cost.

The embodiment of the invention discloses a self-diagnosis method for the measure result of a blood analyzer, and a device thereof. The method comprises the following steps: generating a sample sucking process light transmittance curve according to the change of the sample light transmittance in the blood sample sucking process; judging whether an abnormity appears in the sample sucking process or not according to the sample sucking process light transmittance curve; determining that the measure result of the blood sample can be trusted if no abnormity appears in the sample sucking process; and determining that the measure result of the blood sample is doubtful if the abnormity appears in the sample sucking process. The self-diagnosis method for the measure result of the blood analyzer, and the device thereof have the advantages of improvement of the measure result self-diagnosis accuracy of the blood analyzer, reduction of the false positive rate, reduction of the work intensity for the measure result user check, and measure cost saving.

The invention provides a large-aperture optical system MTF measuring device and method in order to solve the technical problems that in a traditional large-aperture optical system MTF detecting mode,the testing precision is easily affected by the surface shape of an optical element in a large-aperture collimator, the disturbance resisting capacity is poor, and the testing cost is high. Accordingto the invention, a small-aperture plane mirror is used as a reference plane mirror, an active Hartmann wavefront sensor is used as wavefront measurement equipment, the small-aperture plane mirror ismoved to each sub-aperture position of a large-aperture optical system, and the active Hartmann wavefront sensor is used to acquire the wave aberration of each sub-aperture. When the full aperture iscompletely covered, sub-aperture wave aberration data are spliced by adopting a sub-aperture splicing algorithm to obtain full aperture wave aberration, and the full aperture wave aberration can be converted into an MTF value of an optical system after numerical calculation. According to the invention, the use of an interferometer and a large-aperture plane mirror is avoided, the anti-disturbancecapability of the whole system is improved, and the test cost is reduced.

The invention relates to a focal length measurement method for a micro-lens array. All sub-units of the micro-lens array are used for dividing the front parts of spherical surface waves and are imaged on respective focal surfaces; the imaging principle is analyzed, and normal directions of all divided wave surfaces pass through the centers of all sub-hole diameters, the centers of light spots on the focal surfaces and the converging centers of the front parts of the spherical surface waves; and the offsets of the centers of the light spots of all the sub-units of the micro-lens array with an optical axis can be measured through determining the converging centers of the front parts of the spherical surface waves, so as to complete the measurement for the focal lengths of the all the sub-units. According to the method, the measurement for the focal lengths of a plurality of sub-units can be completed through one-time image acquisition and treatment, so that the measurement efficiency and the measurement accuracy are higher, and the method can be used for detecting the micro-lens array with more arrays.

The invention relates to a method using point targets to carry out onboard RCS measurement calibration. The method comprises the steps that onboard RCS measurement is carried out on a number of calibration bodies according to a first air line, so as to acquire the echo data of the calibration bodies; onboard RCS measurement is carried out on a target body to be measured according to a second air line, so as to acquire the echo data of the target body to be measured; and according to the echo data of the calibration bodies, the theory RCS value of the calibration bodies and the echo data of the target body to be measured, the RCS value of the target body to be measured is determined. A number of point targets are used to carry out onboard RCS measurement calibration. The onboard RCS measurement calibration method is simplified. The measurement cost is reduced. The calibration accuracy and the measurement efficiency of RCS measurement calibration are improved.

The invention relates to a three-dimensional human body measurement method by using a single camera. The three-dimensional human body measurement method comprises the following steps: arranging a set of mirror combination system in front of the single camera to further form a monocular vision sensor with the camera, wherein the monocular vision sensor can simultaneously acquire front and side images of a human body to be measured on the left and right planes of the camera; obtaining a front outline and a side outline of the human body by image processing such as threshold segmentation, edge detection and the like; determining the characteristic points and lines of the human body measurement; calculating to obtain the width and thickness data of the parts of the human body; and performing three-dimensional curve-fitting by regression analysis. The three-dimensional human body measurement method by using the single camera has the advantages of simple device, convenient operation, low measurement cost, and better practical value and popularization prospect.

The invention discloses a back electromotive force measurement device and a method of a motor and relates to the field of motors. The device comprises a sampling part and a waveform determination part. The sampling part is connected with a motor stator and is used for sampling voltage signals between any two phases of the motor stator. When the rotation speed of a rotor of the motor reaches a set speed threshold value, a motor controller stops outputting driving pulse signals. The waveform determination part is electrically connected with the sampling part and is used for acquiring the voltage signals acquired by the sampling part so as to determine waveforms of the voltage signals corresponding to the motor stator after the motor controller stops outputting the driving pulse signals to determine a value of back electromotive force according to the waveforms corresponding to the back electromotive force of the motor. According to the technical scheme provided by the invention, current measurement modes are simplified and an effect of improving measurement precision is achieved.

The invention relates to a measuring analytical system and a measuring analytical method for distinguishing a diffraction image of particles automatically. The system comprises a sample stream formed by flow particles, a coherent excitation light beam intersectant with the sample stream, a first scattered light receiving objective lens part with a first central scattering angle of a coherent scattering light beam, a first light split and filtering part, a first imaging measurement and data output part, an image processing circuit, a computer part and a display part connected with the image processing circuit and the computer part. The method comprises the following steps of: acquiring the corresponding adjustable wavelength and polarizing diffraction image data; storing the data; performing the conversion of image space coordinates; performing characteristic screening and selecting a characteristic area; selecting the characteristic of a diffraction image mode; and determining the position of the measured particles in the characteristic parameter vector sample space of the diffraction image. The measuring analytical system and the measuring analytical method haves the advantage that a large number of particles can be analyzed and distinguished quickly according to the characteristic of a three-dimensional structure in the particles, and the particles are not needed to be dyed.

The invention discloses a method and a device for tracking and measuring a welding seam. The method comprises the steps of utilizing a single laser beam to perform laser scanning to the welding seam and regions on two sides of the welding seam along the length of the welding seam, scanning the laser beam and forming diffuse reflection light of light spots to be reflected onto a lens after the laser beam is reflected by the welding seam and the regions on two sides, generating an electric signal corresponding to diffuse reflection light intensity of the light spots on a photosensitive element through lens focusing, judging changes of the width, the central position and the height of the measured welding seam according to the electric signal generated by the photosensitive element and transmitting judging results to a welding actuator, wherein the welding actuator corrects the welding position of the welding seam according to change information of the welding seam. The device comprises a laser beam scanning device, a laser beam processing device, a signal processing and calculating unit and a data transmission unit. The method is simple, the change information of the welding seam can be acquired without a lens group and a high-precision charge coupled device (CCD) imaging chip, and the measuring cost of the welding seam is extremely low.

The present invention discloses a measurement method of a motor rotational inertia, a measurement device of the motor rotational inertia and a motor control system. When a motor is located in no-load or light load operation, the measurement method of the motor rotational inertia comprises the following steps of obtaining a preset straight axis reference current and a preset quadrature axis reference current within a preset time quantum, and controlling the rotating speed of the motor to accelerate with a preset angular acceleration; sampling a DC of the motor at a preset sampling point of the preset time quantum to obtain a sampling current, and calculating an electromagnetic torque of the motor according to the sampling current; calculating the rotational inertia of the motor according to the electromagnetic torque and the preset angular acceleration. The rotational inertia measurement method of the present invention can obtain the more accurate rotational inertia, is simple to operate and easy to realize, is low in measurement cost, and can be applied to the engineering practice.

The invention relates to a measuring device for the exhaust area of an engine turbine guider throat, which comprises an outer housing, a supporting and locating mechanism, a measuring mechanism, a transmission mechanism and an auxiliary mechanism, wherein the outer housing comprises a first housing and a second housing; the supporting and locating mechanism comprises a locating rod and a supporting rod; the measuring mechanism comprises a measuring assembly for measuring the trapezoidal height of the throat, a measuring assembly for measuring the trapezoidal upper bottom of the throat, a measuring assembly for measuring the trapezoidal lower bottom of the throat, and a dial test indicator; the transmission mechanism comprises a first transmission lever, a first transmission rod, a first transmission plate, a second transmission rod, a second transmission plate, a third transmission rod, a second transmission lever and a spring lamination; and the auxiliary mechanism comprises a handle knob, a handle, a pressure lever and a force transferring pin. By using the measuring device, the deviation of the measured exhaust passage area of the engine turbine guider throat being relative to the cavity area of a standard part can be obtained directly, the measuring operation can be simplified, and the measuring efficiency can be enhanced.

The invention discloses a vehicle front barrier contour detection method based on a recursive superposition algorithm. The method comprises steps that barrier contour height is calculated according tothe radar and ground geometric relationship; coordinate matching of historical scanning data and present scanning data is carried out; normal distribution characteristics of radar light beams are considered and are introduced to a probability density function; quasi-continuous estimation of the barrier contour is realized; the accurate barrier contour height can be solved in a continuous recursive superposition mode according to the historical scanning data and the present scanning data; regression calculation of height deviation and pitch angle deviation is carried out; fusion of historicalscanning and present scanning is carried out. The method is advantaged in that the employed measurement method is simple and feasible, the approximate contour height of a barrier in front of the roadcan be accurately and efficiently detected, recursive superposition of overlapped areas generated by historical and present scanning is continuously carried out, influence caused by certain interference can be eliminated, information density is greatly enhanced, and the vehicle front barrier contour height can be accurately acquired.

The invention discloses a standing tree height measuring method based on monocular vision. The problems that existing tree height measurement has complex operation and large consumed time and the standing tree height cannot be rapidly and conveniently detected are solved. The method comprises the following steps of calibrating a camera, acquiring internal parameters of the camera, performing standing tree contour extraction on an input image, establishing a geometric model of the distance between an image coordinate system and a world coordinate system, acquiring a standing tree image depth relational expression, establishing a height pixel coordinate mapping model, acquiring a to-be-measured target height relational expression, and calculating a standing tree height according to the shooting height and angle of the camera. The method has low measurement cost and high working efficiency, only an existing smart phone needs to be adopted, only the shooting angle and the shooting height need to be obtained, and operation is more convenient and faster. Moreover, the measurement method does not need complex operation, less time is consumed, the algorithm precision is high, the automation degree is high, and the operation is simple.

The invention provides a workpiece multi-dimension multi-parameter measuring method based on image processing. Multi-dimension multi-parameter measurement of a to-be-measured object is realized at a measuring platform. The platform is formed by processing software, a scanner, a camera, a linear motor, and a motion slide rail etc. Before a batch of workpieces are measured, required parameters are input through control software and compared with preset thresholds, and different processing modules are started according to characteristics of measuring parameters. After the selection of a solution, the position of a to-be-measured area is estimated through shooting of the camera and the parameters preset by the software, the scanner is driven to scan the workpieces by the linear motor through the slide rail, and the absolute value of each parameter is calculated after obtaining of point cloud data. According to the method, the general measuring platform is established, the cost and the measuring time are reduced, and the precision requirement of measurement is met.

The invention discloses an oil-gas-water three-phase flow velocity measurement method which comprises the following steps of: carrying out blind source separation on acquired flowing signals of three phase flows by adopting an independent component analysis method to obtain signals representing gas-phase flowing and liquid-phase flowing; and after blind source separation, carrying out time-delay estimation on the obtained upstream and downstream gas-phase and liquid-phase signals so as to obtain the gas-phase flow velocity and the liquid-phase flow velocity of three oil, gas and water phases. The invention also discloses an oil-gas-water three-phase flow velocity measurement device. When the oil-gas-water three-phase flow velocity measurement method and the oil-gas-water three-phase flow velocity measurement device are adopted to carry out oil-gas-water three-phase flow velocity measurement, the gas-phase flow velocity and the liquid-phase flow velocity can be respectively calculated and the problem that in related velocity measurement methods, peaks are inaccurate to search to influence the transit time precision so as to cause errors of measuring the speed and the flow velocity is relieved, and thus, a more objective and actual measurement result is obtained.

A heat exchange measuring device of the ground source heat pump underground heat interchanger relates to the scene measuring device of the ground source heat pump underground heat interchanger. The invention includes a heat interchanger buried under the ground and a water tank having a heater and a refrigerator arranged above the ground and a meter box having five figure display instruments. The invention has simple structure, convenient operation, exact measurement and high precision, which can measure the heat dissipating capacity and the decalescence heat exchange of the ground source heat pump underground heat interchanger, and can adjust the parameters of the burying depth of the underground heat interchanger, the water intake flux of the burying device, the water intake temperature for measurement. The invention can be widely used for the measurement of the heat dissipating capacity or the decalescence heat exchange basic data, which provides reliable, comprehensive and correct basis data to the design, the construction and the operation of the ground source heat pump system engineering.