111 results about "Densitometer" patented technology

The invention relates to the field of image recognition, in particular to an invader monitoring method and system based on laser and video image fusion. The method comprises the following steps that real-time laser scanning monitoring signals are collected based on a multi-array laser, dynamic area laser shielding disturbance excavation is carried out, and a working area foreign matter light beam shielding disturbance map is constructed; the method comprises the following steps: acquiring a working area monitoring video stream according to a high-definition camera, performing adaptive cache optimization and foreign matter invasion key frame segmentation, and extracting a foreign matter invasion video frame sequence; carrying out light beam shielding density calculation according to the light beam shielding disturbance map, and carrying out three-dimensional morphological analysis on the foreign matter invasion video frame sequence to obtain foreign matter three-dimensional morphological characteristics; and performing dynamic optical flow tracking and vector change frequency analysis on the foreign matter invasion video frame sequence, and constructing a foreign matter disturbance trajectory vector field. According to the invention, efficient and accurate invader monitoring is realized, and the operation safety and quality are improved.

The invention relates to the technical field of new energy power generation prediction, and discloses a t-SNE visualization and depth time sequence attention model-based wind and light power prediction method and system, and the method comprises the steps: obtaining historical power data and corresponding historical meteorological data of a wind power station and a photovoltaic station, and constructing a historical data set; inputting the preprocessed high-dimensional meteorological data into a t-SNE dimension reduction module, and mapping the high-dimensional data to a low-dimensional space through symmetric joint probability density calculation to obtain low-dimensional visual data distribution; the low-dimensional data are input into a parallel model composed of a TCN-SENet branch and a BiGRU-GlobalAttention branch, and space-time local features and global time sequence features are extracted respectively; and fusing the feature vectors output by the two branches, generating a wind-solar power prediction result through a full-connection layer, and performing evaluation. According to the method, the limitation of traditional single energy independent modeling is broken through, the adaptability of the model to a complex power generation mode of a distributed station is optimized, and the precision and generalization ability of multi-energy joint prediction are remarkably improved.

The invention relates to the technical field of medical imaging, and discloses an image processing method and system for a dual-energy X-ray bone mineral densitometer, and the method comprises the steps: collecting a dual-energy X-ray image, and carrying out the light and dark field correction of original projection data; based on the corrected projection data, using an aluminum sheet to simulate bones and glass to simulate tissues, carrying out data fitting to obtain a bone mineral density value, and fitting a bone-aluminum conversion coefficient; preprocessing the image, wherein the preprocessing comprises Gaussian smooth filtering, threshold processing and corrosion operation; segmenting the image by using a region growing algorithm, and carrying out edge detection by using a Canny operator; extracting an ROI (Region of Interest), and determining the boundary of the ROI by searching coordinates meeting a preset threshold condition within a preset proportion range in the vertical direction of the image; and calculating the area of the ROI, the bone mineral density BMD and the bone mineral salt content. The accuracy of bone mineral density measurement is improved, the influence of noise and artifacts can be effectively reduced, and the target area is accurately extracted.

The invention relates to an online solid content detection system and method for slurry. The device comprises a main pipeline, a bypass line; the first three-way valve is respectively connected with one end of the bypass pipeline, the main pipeline and the cleaning liquid pipeline; the second three-way valve is respectively connected with the other end of the bypass pipeline, the main pipeline and the waste liquid pipeline; the on-line densimeter is arranged on the bypass pipeline and is used for collecting the density value of the slurry in real time; the fourth control valve and the fifth control valve are arranged on the bypass pipeline and located on the two sides of the online densimeter respectively, and the fifth control valve is connected with the second three-way valve; the conveying pump is connected to the first three-way valve; the three-way pipe is arranged on the bypass pipeline and connected with the fourth control valve, the conveying pump and the third drain valve; the third drain valve is used for discharging residual cleaning waste liquid in the bypass pipeline after the cleaning process is finished; and the sixth control valve is arranged on the cleaning liquid pipeline and is used for controlling the on-off of the cleaning liquid. According to the invention, the detection accuracy and speed are improved.

The invention discloses a sea ice melting pool detection method based on ICESat-2 laser radar point cloud data. The method is used for solving the problem of double-surface precise separation caused by low photon signal-to-noise ratio of a sea ice melting pool area in summer. According to the method, ICESat-2 photon data are segmented through data preprocessing, and a sliding window is generated to position the sea ice and melting pool height range; gaussian fitting is adopted to divide an on-ice / under-ice photon set, and noise elimination is carried out in combination with dynamic height difference threshold iteration and terrain adaptive ellipse density dual thresholds; and performing double-peak detection and saddle point analysis based on the smooth height histogram of the denoised photons, and dynamically dividing the height layer range of the top and the bottom of the fusion pool. According to the method, through multi-stage dynamic threshold optimization and terrain adaptive ellipse density calculation, full-automatic precise separation of the double surfaces of the sea ice melting pool under the low signal-to-noise ratio environment is achieved, and reliable technical support is provided for global polar region environment monitoring and climate change research.

Coriolis mass flowmeter and / or density meter (100) comprising: at least two measuring tubes (110) which are bent in the rest position, wherein the measuring tubes (110) have measuring tube center lines which run in pairs mirror-symmetrically to a first mirror plane (Syz) which extends between the measuring tubes (110), wherein the measuring tube center lines each run mirror-symmetrically to a second mirror plane (Sxy) which extends perpendicular to the first mirror plane (Syz); at least one excitation arrangement (140) and at least one sensor arrangement (142); a collector (120) on the inlet side and an outlet side, wherein the measuring tubes (110) are fluidically combined with one of the collectors (120) on the inlet side and the outlet side; a support body (124) which rigidly connects the inlet-side collector (120) and the outlet-side collector (120); and at least one plate-shaped coupler (132, 134) on the inlet side and the outlet side, wherein the measuring tubes (110) are connected to one another in pairs by means of the couplers (132, 134) in order to form an oscillator, wherein the couplers (132, 134) are arranged symmetrically to the first mirror plane (Syz) and in pairs symmetrically to the second mirror plane (Sxy), wherein the excitation arrangement (140) is designed to excite a bending vibration mode between the two measuring tubes (110) of the respective oscillator, wherein the sensor arrangement (142) is adapted to detect oscillations of the respective oscillator, wherein the measuring tube center lines of the measuring tubes (110) of at least one oscillator between the second mirror plane (Sxy) and the collectors (120) each have a first bent section (114), a second bent section (118) and a straight section (116) arranged between the bent sections (114, 118), to which the two bent sections (114, 118) adjoin, wherein the first bent section (114) and the second bent section (118) are bent in opposite directions, wherein the second bent section (118) is arranged on the side of the straight section (116) facing away from the second mirror plane (Sxy), wherein the projection of the measuring tube center line between the intersection point with the second mirror plane (Sxy) and the transition between the straight section (116) and the second bent section (118) onto the second mirror plane (Sxy) Arch height (h) defined,wherein twice the distance between the second mirror plane (Sxy) and the measuring tube center line at the transition between the straight section (116) and the second curved section (118) defines an arc width (w), wherein the quotient of the arc height (h) divided by the arc width (w) defines a relative arc height (h, r ) which is not less than 0.65, where the relative arch height (h r ) is not more than 1.0, wherein the first curved sections (114) between the second mirror plane (Sxy) and the straight section (116) each have a plurality of stiffening bodies (151, 152, 153, 154) which surround the respective measuring tube (110) in a ring shape, wherein at least one of the couplers (132, 134) on the inlet side and the outlet side has a tuning opening surrounded by a closed edge between the measuring tubes (110) connected by the coupler (132, 134) for influencing the oscillation properties of the respective oscillator, wherein the tuning opening in the first mirror plane (Syz) has an extension of at least 70% of the diameter of the measuring tubes (110).

The present invention discloses a vibrating tube densitometer for small mass flow measurement, which comprises a housing, a flange, a bracket, a vibrating tube assembly and a wiring sealing structure; the measuring tube includes an input pipeline, an output pipeline, a fluid flow tube, a flow equalizing tube and an accelerating tube, the flow equalizing tube includes a shunt inlet, a shunt outlet and a spiral tube, and a plurality of alternately connected first passages and second passages are arranged inside the accelerating tube. The liquid containing trace gas is first shunted through the flow equalizing tube to form small bubbles. Due to gravity, most of the liquid flows from the lower passage of the first passage to the second passage, and the bubbles in the fluid will float up, and a small part of the bubbles will adhere to the upper wall and stay in the first passage. After the fluid enters the second passage, a small amount of fluid passes through the upper passage of the second passage and causes the floating bubbles to stay. After multiple operations, the gas will not be discharged with the liquid, so that only the liquid part without gas is metered, thereby improving the metering accuracy.

1. Name of the product in this design: Grouting Density Meter. 2. Purpose of this design: To measure the density of cement slurry. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: the front view.

The invention discloses a seawater concentration ratio monitoring device and method, and relates to the technical field of marine environment monitoring, and the seawater concentration ratio monitoring device comprises a measuring cylinder, a water inlet pipe, an electric control valve, a densimeter, a camera and a computer; the electric control valve and the camera are respectively in signal connection with the computer; the measuring cylinder is communicated with the water inlet pipe, an electric control valve is mounted on the water inlet pipe, and the computer controls the water inlet pipe to inject seawater to be monitored into the measuring cylinder by controlling the electric control valve to be opened; the densimeter is arranged in the measuring cylinder, and the camera is in height fit with the densimeter and is used for acquiring a real-time image of the densimeter. According to the invention, a densimeter and an image recognition technology are combined, so that the seawater concentration ratio is accurately monitored; the device design enables seawater to continuously flow, and continuous monitoring is achieved; a monitoring result can be easily obtained through the camera and the data processing system; interference is avoided by closing the water inlet valve until the densimeter is stable; and no electronic component in contact with seawater exists, so that the device is easy to maintain.

The utility model discloses an evaporator solution density measuring device and system. The evaporator solution density measuring device comprises a circulation branch, a gas-liquid separation tank, a density measuring tank and a densitometer, wherein an inlet and an outlet of the circulation branch are respectively communicated with an evaporator; the gas-liquid separation tank and the density measurement tank are sequentially arranged on the circulation branch in the flowing direction of the solution; and the densimeter is communicated with the density measuring tank. A circulation branch is arranged outside the evaporator through the gas-liquid separation tank and the density measurement tank, the solution is in a flowing state when flowing through the gas-liquid separation tank and the density measurement tank, the state of the solution is basically consistent with that of the solution in the evaporator, and the phenomena of solution deposition and pipeline blockage are avoided. At the moment, the density of the solution in the density measurement tank is measured through the densimeter, the density value of the solution in the evaporator can be truly reflected, and the measurement accuracy is improved.

The heat value allocation device comprises at least two gas source pipelines with different heat values, and each pipeline is provided with an adjusting valve and a flow meter; the efficient dynamic mixer is used for receiving the fuel gas from each gas source pipeline and fully mixing the fuel gas; the real-time monitoring system comprises an on-line calorific value analyzer and a densimeter which are arranged on an outlet pipeline of the mixer; the intelligent control system is used for receiving signals of the flowmeter, the calorific value analyzer and the densitometer and outputting control signals to the regulating valves of the pipelines; the invention discloses a safety interlocking system. The system and the method have the beneficial effects that online, real-time and accurate allocation is realized, the stability of fuel of the gas generator set is ensured, the power generation efficiency and the operation reliability are improved, and the adaptability of the set to different gas sources is enhanced.

The utility model discloses a cleaning device for an electronic densimeter, and belongs to the technical field of grouting. The device comprises a grouting pipeline; a pipeline notch is formed in the top of the grouting pipeline, and a connecting pipe communicated with the grouting pipeline is mounted on the pipeline notch; the detection assembly comprises a densimeter main body, a tuning fork seat and a tuning fork sensor; the tuning fork seat is mounted at the bottom of the densimeter main body, the tuning fork sensor is mounted at the bottom of the tuning fork seat, and the bottom of the tuning fork seat penetrates through the connecting pipe and the pipeline notch and then extends into the grouting pipeline; the cleaning assembly comprises a first nozzle and a second nozzle. The utility model relates to a densimeter flushing device, which is used for flushing a densimeter under the condition that the grouting work is not stopped. The device is time-saving and labor-saving, and does not affect the normal construction of grouting work. The field working efficiency is greatly improved, and the loss of labor force of personnel is reduced.

The utility model relates to the technical field of optical equipment, in particular to an optical densimeter and visibility all-in-one machine which comprises a base, a support is arranged at the top end of the base, a transmitting bin and a receiving bin are arranged on the left side and the right side of an inner cavity of the support respectively, and adjusting assemblies are arranged in inner cavities of the transmitting bin and the receiving bin. A transmitting cylinder and a receiving cylinder are arranged on the two adjusting assemblies correspondingly, a transmitting circuit board and a receiving circuit board are arranged at the ends, away from each other, of the transmitting cylinder and the receiving cylinder correspondingly, and protective glasses and cleaning assemblies are arranged at the ends, close to each other, of the transmitting bin and the receiving bin correspondingly. The optical densimeter and visibility all-in-one machine solves the problems that an optical densimeter and visibility all-in-one machine in the prior art cannot adjust the positions of a receiving lens cone and a transmitting lens cone in the actual use process, the flexibility is limited in the use process, and protective glasses cannot be cleaned; and residual dust on the protective glasses can influence the stability of the optical equipment.

The invention discloses an online detection method for a gas densitometer, which relates to the technical field of gas densitometer detection and comprises the following steps of: for density data which are determined as data with inconsistent structures, combining the density data with temperature data and pressure data in a corresponding time period; identifying whether a detection time period corresponding to the density data is in a buffer air mass intervention state or not; under the condition of a buffer gas mass intervention state, constructing a detection point based on temperature data, pressure data and density data collected by a gas densimeter in real time, comparing the detection point with a representative state space constructed based on a historical stable state, and determining an attribute mismatching degree of the density data; and dividing the density data into three grades of representativeness, representativeness doubt and non-representativeness according to the determined attribute mismatch degree. According to the method, the problem that the density data distortion cannot be identified due to buffer air mass intervention is solved, and density data representativeness intelligent discrimination and differential application are realized.

The invention relates to an electrode drying apparatus, an electrode manufacturing apparatus, and an electrode drying method. The electrode drying apparatus includes: a dryer configured to form a dried active material layer by applying thermal energy to dry a fluid active material layer of an electrode active material slurry coated on a substrate moving in a first direction; a densimeter configured to measure a density of the fluid active material layer and a density of the dry active material layer; and a controller configured to control the dryer such that a magnitude of the thermal energy is adjusted based on a density change, which is a difference between the density of the fluid active material layer measured by the densitometer and the density of the dried active material layer.

The invention relates to a gas densitometer (100, 200) for monitoring the pressure or density of a gas in a gas chamber (1), comprising: a housing (102, 202) having a first housing cavity (103, 203) and a measurement chamber (168, 268); a first coupling (104, 204) via which the measurement chamber can be connected to the gas chamber; at least one reference flap (105, 205), which is in particular directly or indirectly connected to the transmission element (109, 209); and at least one switching and / or monitoring unit (110, 210), which is held or can be operatively connected to the transmission element directly or indirectly. The measuring chamber is connected to the gas chamber in a gas-permeable manner via a first coupling, and the reference bellows forms a reference chamber (111, 211) which is filled with a constant amount of reference gas. A surface section covering the reference chamber is provided or can be implemented as a measuring surface for gas from the measuring chamber at least in some regions inside the first housing chamber or the measuring chamber.

The application discloses a short-focus projection touch geometric optical adaptive accurate calibration method, relates to the technical field of projection touch calibration, and is used for solving the problems of projection and touch geometric coupling, complicated calibration and long-term overall drift correction, and comprises the following steps: a unified geometric optical model and a layered state vector are established; a factory side establishes a model geometric optical priori, a residual base and a drift mode library based on multiple sample mechanisms; when a terminal is installed, a few-point joint calibration is completed by combining attitude and distance observation and a small amount of user clicks; in a running stage, projection side and touch side drift are identified by using multi-source observation data, and a state vector is updated; based on screen area error, uncertainty and interactive density calculation information value, an interface control layout is adjusted, and an explicit calibration trigger area is adjusted, so that the interactive area can maintain high and stable projection alignment accuracy and touch positioning consistency under different installation conditions and long-term operation.

The present invention provides a phase shifter that can be manufactured using a CMOS process, exhibits low optical propagation loss, can maintain refractive index changes without power supply, and allows for the resetting of those refractive index changes. [Solution] The phase shifter 100 of the present invention comprises an optical waveguide 101 composed of a core 105 and a cladding 106 surrounding the core 105, a substrate 102 on which the optical waveguide 101 is mounted, a heating means 103 for heating the core 105, and an ultraviolet irradiation means 104 for irradiating the core 105 with ultraviolet U, wherein the core 105 mainly contains silicon nitride, and the density of silicon dangling bonds of silicon nitride is 10 in terms of spin density 18 cm -3 The above 10 20 cm -3 The following applies:

According to one aspect of the present invention, a pressure swing adsorption (PSA) device includes an adsorption tower configured to introduce hydrogen gas and adsorb impurity components in the hydrogen gas by using a pressure swing adsorption (PSA) method, an adsorbent of one layer made of activated carbon or an adsorbent of two layers in which activated carbon and zeolite are stacked being disposed in the adsorption tower, the hydrogen gas containing carbon monoxide (CO) of 0.5 vol % or more and 6.0 vol % or less and methane (CH4) of 0.4 vol % or more and 10 vol % or less as the impurity components; and a densitometer configured to detect a concentration of CO in the hydrogen gas discharged from the adsorption tower, wherein the impurity components are adsorbed and removed to cause the CO concentration measured by the densitometer to fall below a threshold.

The invention relates to the technical field of three-coordinate measurement. An active laser probe is disclosed. The laser probe comprises a laser emission module, an ambient light constant module, an acquisition module, a signal processing and control module and an interference suppression unit. The signal processing and control module divides the workpiece and the detection table based on the texture features; performing automatic focusing based on the definition and the resolution; calculating a curvature change trend based on the pixel density of each detection area; checking a measurement result by combining the curvature and the luminosity of the current area, and adaptively adjusting measurement, light supplement and focusing parameters of the next area based on a curvature trend; the interference suppression unit outputs a predefined stabilized image signal to the signal processing and control module to suppress a measurement error caused by ambient light fluctuation. According to the invention, through dynamic adjustment of ambient light, automatic focusing and parameter self-adaption, measurement errors caused by overcut / undercut, high reflection or dark color materials of the edge of the curved surface are overcome, and the method is suitable for high-precision three-dimensional measurement of a complex curved surface.

The present invention relates to a solution for determining the content of a fluid flow, especially for determining the gas fraction or density of the fluid flow at a predetermined rate. It includes a data storage device storing an assumed water liquid ratio value related to the flow, a gamma densitometer configured to measure the density in at least a defined section of the fluid flow in a predetermined time period, thus providing a density measurement of the fluid flow in said defined section, and storing a corresponding first density value and tomographic impedance measuring unit configured for providing a sequence of discrete tomographic measurements of the gas / liquid distribution of the flow at discrete time steps within said time period. The tomographic measuring unit also calculating the gas fraction and density for the fluid flow in the defined section for each discrete time step.

The utility model belongs to the field of densimeter, specifically is glass densimeter damping device, including mounting seat, the upper end of mounting seat is equipped with the mounting groove, the inside of mounting groove is placed with glass densimeter body, the upper end of mounting seat is connected with protection subassembly, the lower extreme of mounting seat is connected with damping subassembly, the outside of mounting seat is connected with fixed component, through setting protection subassembly, initial state, four protection strips are all as far as possible to the middle close, with the spacing of medium axis line is less than the radius of conventional glass densimeter glass tube, when placing glass densimeter body, then will push and squeeze protection strip no.

1. The name of the design product: import instrument (D501). 2. The use of the design product: the product design is used for beauty instrument. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective drawing.

The application discloses a kind of photomultiplier output attenuation compensation methods of radioactive source density detection under low temperature condition, belong to radioactive source density detection and photomultiplier signal compensation technical field.For the problem that low temperature leads to the reduction of photomultiplier output pulse amplitude, the reduction of effective pulse count and the increase of density measurement error, the count rate obtained by signal processing and pulse counting is collected at calibration temperature and multiple low temperature points, and the count rate compensation coefficient is calculated;With ambient temperature as input, compensation coefficient as output, support vector regression compensation model is established, and parameters are optimized by radial basis kernel function, grid search and cross validation;Real-time acquisition of the predicted compensation coefficient corresponding to the current temperature, correct the measured count rate, and use the compensated count rate for medium density calculation.The method does not need to change the photomultiplier power supply high voltage, discrimination threshold or increase the compensation hardware, and can reduce the influence of output attenuation under low temperature condition on density measurement result.

The utility model provides an air suction type dust detection optical densimeter and relates to the technical field of dust detection. The air suction type dust detection optical densimeter comprises a cylinder body, connecting cylinders are fixedly connected to the two ends of the cylinder body, and the end, away from the cylinder body, of one connecting cylinder is in threaded connection with a photoelectric detector receiving end. According to the air suction type dust detection optical densimeter, the exhaust assembly and the air inlet assembly are arranged and can be combined with the transmitting end and the receiving end of a photoelectric detector for use, so that the high-resolution characteristic of the optical densimeter can be kept, and meanwhile, through holes are formed in a connecting cylinder, so that it is ensured that when air suction detection is carried out, the detection precision is improved. An air film can be formed at the transmitting end and the receiving end of the photoelectric detector, so that dust particles flowing in the cylinder body can be prevented from contaminating optical lenses at the transmitting end and the receiving end of the photoelectric detector, a protection effect is formed, optical elements are prevented from being contaminated, and practical application is facilitated.

The present disclosure relates to a method, device, electronic device and storage medium for obtaining slurry density, and relates to the field of thermal power generation. First, a density measurement model is trained by a whale optimization algorithm according to preset training samples, then a target control parameter value of a target control parameter for generating limestone slurry is obtained, and finally the target control parameter value is input into the density measurement model to obtain the slurry density of the limestone slurry output by the density measurement model. This avoids the problem in the related art that when a densitometer is directly used to obtain the slurry density, the densitometer is prone to inaccurate measurement results due to wear. Instead, the slurry density is obtained by using the target control parameter value obtained from a stable measurement related to the slurry density, reducing the cost of regular replacement and maintenance of the densitometer, improving the accuracy of the slurry density result, and being beneficial to improving the effect of flue gas desulfurization.

The present invention provides a device for continuously testing the high-temperature dynamic settlement stability of cement slurry for well cementing, which includes: a sealed kettle, which includes a sealed kettle cover (1), a sealed kettle body (2), a base fixing nail (4), a rotor (5), a motor (6), a kettle bottom sealing ring (7), a fixing bolt (8), a kettle cover jack (9), a fixing pin (10), and a paddle blade slot (13); a stirring slurry cup, which includes a slurry cup body (14), a stirring paddle blade (15), and a sealing cover plate (16); a density measuring device, which includes a densitometer rod (17), a densitometer probe (18), and a densitometer signal converter (19). The present invention can test the change of the density value of the cement slurry during the dynamic stirring process and simultaneously realize the continuous measurement of the change of the cement slurry density. The present invention uses a tuning fork densitometer for testing, which overcomes the problem that when using a pressure sensor to test the density of the cement slurry by fluctuations, the density of the cement slurry cannot be accurately measured due to the change of the internal stress of the cement slurry caused by the rise in temperature.

The invention discloses a multi-mode monitoring method and system for accumulated dust of a dust removal pipeline, and relates to the technical field of accumulated dust monitoring. The monitoring method comprises the following steps: measuring a microwave characteristic value by using a microwave detection module, obtaining an optical characteristic value by using an optical auxiliary module, estimating an equivalent density rho by using a density estimation method based on the microwave characteristic value and the optical characteristic value, and calculating a deposition equivalent mass M based on the equivalent density rho, and the deposition equivalent mass M is a quantitative index capable of more accurately reflecting the dust deposition working condition, and can provide judgment on special working conditions such as caking, dust deposition loosening and local blockage, so that the method can adapt to the complex dust conveying working condition to accurately quantify dust deposition information, and is beneficial to accurately realizing risk assessment and providing maintenance suggestions. Moreover, a multi-mode monitoring means facilitates self-diagnosis and self-calibration, and is beneficial for avoiding the situation that a single means affects dust retention information feedback due to material characteristics, environmental changes and the like.

A planar vibratory member (300, 400) is provided, being operable for use in a vibrating densitometer (500). The planar vibratory member (300, 400) comprises a body (302) and a vibratable portion (304) emanating from the body (302), wherein the vibratable portion (304) comprises a plurality of vibratable projections, and wherein the plurality of vibratable projections are cantilevered. The vibratable portion is operable to be vibrated by a driver (504).

The present invention relates to a test device and method for gas-water relative permeability of tight rocks under high temperature and high pressure, which includes a gas cylinder, a liquid pump, a throttle valve, a flowmeter, a thermometer, a pressure sensor, an intermediate container, a core holder, an confining pressure pump, a heating device, a gas densitometer, and a computer; the inlet end of the core holder is connected to the gas cylinder and the liquid pump respectively through two flowmeters, and a heating device is arranged; the outlet end of the core holder is connected to the flowmeter and the gas densitometer, and another set of heating device is arranged; heat insulation materials are arranged between the two sets of heating devices; the heating device includes a high-temperature resistant double-layer cylinder, a heating wire and heat insulation materials. If the absolute permeability of the core is not less than 1 mD, the steady-state method is used to test the gas-water relative permeability; if the absolute permeability of the core is less than 1 mD, the unsteady-state method of detecting the gas density at the outlet end is used to test the gas-water relative permeability. The present invention can accurately measure the gas-water relative permeability of tight rocks under high temperature and high pressure conditions.