188results about "Material moisture content" patented technology

The invention relates to the technical field of medium phase state determination, in particular to a PVT analyzer and method suitable for multi-component fluid medium phase state determination, and the PVT analyzer comprises a determination assembly, a test cylinder, a balance cylinder, a pressurization cylinder, a gas distribution pipeline, a first driving mechanism and a second driving mechanism. The structure is reasonable and compact, combination of gas with various components can be achieved through the multiple gas cylinders and the gas distribution pipeline, mixing of the gas according to the set ratio can be achieved by adjusting the gas distribution valve, the multiple gas cylinders can inject the gas into a rodless cavity of the pressurization air cylinder through the gas distribution valve and the gas distribution pipeline, and the gas injection efficiency is improved. The second driving mechanism drives the piston rod of the pressurizing air cylinder to continuously input gas in the rodless cavity of the pressurizing air cylinder into the rodless cavity of the balance air cylinder through the pressurizing pipeline and the one-way valve, so that the pressure of the rodless cavity of the balance air cylinder can be increased; and the precise gas distribution and gas pre-pressurization functions of multi-component gas can be realized.

The invention provides a power supply strategy optimization method for condensation control and a ring main unit, and belongs to the technical field of power supply, and the method specifically comprises the steps: determining the coincidence probability of the ring main unit and humidity intervals of different fluctuation types in a future preset time period according to the humidity monitoring data of the ring main unit, when the coincidence probability is utilized to determine that the distribution data of the coincidence risk time period in the future preset time period meets the requirement, the temperature change condition of the ring main unit under the weather data of the current date is taken as the basis, and the temperature change condition of the ring main unit is determined on the basis of the coincidence probability of the coincidence risk time period and humidity intervals of different fluctuation types; according to the method, the adjustment demand type of the humidity adjustment device of the ring main unit is determined, and the power supply processing strategy of the temperature adjustment device of the photovoltaic device at different monitoring temperatures is determined by using the adjustment demand type and the humidity monitoring data, so that the reliability of the control processing of the condensation risk is improved, and the use of the commercial power is reduced.

The invention discloses an SF6 density and micro-water comprehensive verification device and a control method thereof. The SF6 density and micro-water comprehensive verification device comprises a micro-water detection unit, a purity detection unit, a density verification unit, a gas path system, a multi-parameter synchronous acquisition module and a control module. The micro-water detection unit is connected in series with a constant flow valve; the purity detection unit comprises an infrared detection cavity, and a constant-temperature heating sheet wraps the outer side of the infrared detection cavity and is used for stabilizing the temperature in the cavity; the density checking unit is connected in series with a precise pressure regulating valve for realizing dynamic pressure regulation; the gas path system comprises a main gas path, a density calibration sub-gas path, a micro-water detection sub-gas path and a purity detection sub-gas path; the multi-parameter synchronous acquisition module is used for synchronously acquiring environment temperature, gas path pressure and environment humidity data in the device; the control module is internally provided with sequential control logic and is used for controlling the electromagnetic switching valve to sequentially conduct the density calibration sub-gas circuit, the micro-water detection sub-gas circuit and the purity detection sub-gas circuit and controlling the main gas circuit to be vacuumized and then filled with nitrogen to form positive pressure isolation when the sub-gas circuits are switched; and meanwhile, a temperature, pressure and humidity coupling compensation algorithm is executed based on data of the multi-parameter synchronous acquisition module. According to the device, micro-water, purity and density detection of the SF6 gas is realized through one device, and the detection accuracy is high.

The invention discloses a real-time monitoring data control method for adsorption separation and an adsorption separation device, and relates to the technical field of adsorption and analysis regulation and control. The method comprises the following steps: setting a first cleanliness threshold value of finished gas and a second cleanliness threshold value of desorption gas; according to the current state of the first cleanliness and the current state of the second cleanliness, the regeneration medium flow of the analysis process is dynamically adjusted; or when the first cleanliness reaches the first cleanliness threshold value and the second cleanliness reaches the second cleanliness threshold value, the current adsorption process is ended, and the working mode is switched; if the second cleanliness does not reach the threshold value, the regeneration medium flow is increased until the switching condition is met. Saturation regulation is carried out by monitoring the dual states of the finished gas and the desorption gas in real time, actual working condition fluctuation can be responded in a self-adaptive mode, the quality stability of the finished gas is guaranteed, meanwhile, the problem that regeneration is insufficient or regeneration media are excessively consumed is solved, and operation energy consumption is remarkably reduced.

The invention discloses a solid waste water content prediction system and method based on an infrared thermal imager. The temperature field of the solid waste on the conveyor belt in the natural convection and forced convection moisture evaporation process is monitored and compared in real time through the thermal infrared imager, and the moisture content of the solid waste can be accurately predicted in combination with data processing, environmental parameter correction and prediction of a regression equation. Compared with a traditional sampling detection method, the method has the advantages of being high in real-time performance, non-contact, simple in equipment, good in economical efficiency and the like, can adapt to a complex industrial field environment, and provides a new technical means for intelligent and refined control over waste incineration. The system is simple in structure, high in reliability, good in detection precision and capable of achieving real-time prediction of the water content of the solid waste entering the furnace.

A testing device for measuring oil, gas and water contents in rock has a heating desorption unit that has a sample chamber for placing a rock sample to be detected, a crushing mechanism arranged within the sample chamber, and a heating mechanism. The heating desorption unit crushes and heats the rock sample in a sealed manner to achieve gas analysis and desorption analysis of oil and water contained therein, thus obtaining components to be detected. The device further has a cold trap collection unit in communication with the sample chamber, a light hydrocarbon capture unit in communication with the cold trap collection unit, a gas measuring unit in communication with the light hydrocarbon capture unit for measuring and calculating a gas volume; and a central control unit for controlling the testing device.

The invention discloses a dew-point meter measurement data processing method and equipment, relates to the technical field of industrial automatic measurement and control and fault diagnosis, and aims to construct a dynamic sensing window with a variable form to preprocess dew-point meter time sequence data, calculate fault probability entropy in real time and detect instantaneous abnormality. And a window form is decided in combination with the fault-window form mapping library, and adaptive switching is carried out to obtain an anomaly recognition result. And selecting a corresponding algorithm from the correction strategy library to correct the abnormity. According to the method, a dynamic sensing window with a variable form is constructed, and adaptive switching among panoramic, sniping and multi-focus forms is realized by taking the fault probability entropy calculated in real time as a drive. By means of a built-in fault-window form mapping library, abnormal symptoms and fault physical mechanisms are associated, multiple concurrent faults are separated, root causes are deduced, and decision space explosion is avoided. And on the basis of a diagnosis result, a correction strategy library targeted algorithm is called to correct abnormity, and an identification-diagnosis-correction intelligent closed loop is formed.

The invention relates to the technical field of power equipment, in particular to a switch cabinet condensation processing device and a switch cabinet condensation processing method.The switch cabinet condensation processing device comprises humidity detection equipment and dehumidification equipment, the humidity detection equipment comprises a detection probe and a central processing unit, and the detection probe comprises a humidity sensor; the detection probe is arranged at a detection site in the switch cabinet, and the central processor is in signal connection with the humidity sensor; the dehumidification equipment is in signal connection with the central processor; the detection sites are positioned on a circuit breaker chamber upper contact box, a circuit breaker chamber A-phase lower contact box, a circuit breaker chamber C-phase lower contact box, a circuit breaker chamber right side plate contact box, a circuit breaker chamber left side plate contact box, a cable chamber right side plate cable bridge, a cable chamber left side plate cable bridge and a cable chamber right side plate contact box of the switch cabinet; the cable chamber is arranged on the peripheral side of at least one of the contact boxes on the left side plate. The dehumidification equipment is in signal connection with the central processing unit, so that the dehumidification equipment can be controlled to start and stop according to the humidity of the detection site.

This invention discloses a method and device for processing dew point meter measurement data, relating to the fields of industrial automation measurement and control and fault diagnosis technology. It constructs a dynamically sensing window with variable shape to preprocess time-series data from the dew point meter, calculates fault probability entropy in real time, detects instantaneous anomalies, and combines a fault-window shape mapping library to determine the window shape and adaptively switch it to obtain anomaly identification results. A corresponding algorithm is selected from a correction strategy library to correct the anomaly. This invention constructs a dynamically sensing window with variable shape, driven by real-time calculated fault probability entropy, enabling adaptive switching between panoramic, sniper, and multi-focus shapes. Utilizing a built-in fault-window shape mapping library, it associates anomaly symptoms with fault physical mechanisms, separates multiple concurrent faults, infers root causes, and avoids decision space explosion. Based on the diagnostic results, it calls targeted algorithms from the correction strategy library to correct anomalies, forming an intelligent closed loop of identification-diagnosis-correction.

The problem to be overcome by the present disclosure is to more accurately measure the water vapor pressure of gas mixtures even when the gas mixtures flow through a flow channel under a high-humidity environment. A physical quantity measurement system (1) includes a temperature and humidity sensor (16), a heat generator (17), a heat generation controller (203), and a water vapor pressure measurer (204). The temperature and humidity sensor (16) measures a humidity and temperature of gas mixtures flowing through a flow channel (101). The heat generator (17) performs a heat generating operation that generates heat to warm the temperature and humidity sensor (16). The heat generation controller (203) controls the heat generating operation. The water vapor pressure measurer (204) measures a water vapor pressure of water vapor included in the gas mixtures. The heat generation controller (203) controls the heat generating operation by the heat generator (17) based on a result of comparison between a humidity measured value of the gas mixtures that has been measured by the temperature and humidity sensor (16) and a threshold value. The water vapor pressure measurer (204) calculates the water vapor pressure by changing a measurement method depending on a condition satisfied based on the humidity measured value.

The problem to be overcome by the present disclosure is to more accurately measure the water vapor pressure of gas mixtures even when the gas mixtures flow through a flow channel under a high-humidity environment. A physical quantity measurement system (1) includes a temperature and humidity sensor (16), a heat generator (17), a heat generation controller (203), and a water vapor pressure measurer (204). The temperature and humidity sensor (16) measures a humidity and temperature of gas mixtures flowing through a flow channel (101). The heat generator (17) performs a heat generating operation that generates heat to warm the temperature and humidity sensor (16). The heat generation controller (203) controls the heat generating operation. The water vapor pressure measurer (204) measures a water vapor pressure of water vapor included in the gas mixtures. The heat generation controller (203) controls the heat generating operation by the heat generator (17) based on a result of comparison between a humidity measured value of the gas mixtures that has been measured by the temperature and humidity sensor (16) and a threshold value. The water vapor pressure measurer (204) calculates the water vapor pressure by changing a measurement method depending on a condition satisfied based on the humidity measured value.

The invention relates to the technical field of fuel cell membrane humidifiers, and particularly discloses a fuel cell membrane humidifier humidity testing device, which comprises a base in which a gas channel is arranged; the top cover is sequentially provided with a first probe insertion hole, a second probe insertion hole and a wet bulb gauze lead hole, the first probe insertion hole and the second probe insertion hole are both communicated with the gas channel, a communication groove is communicated between the wet bulb gauze lead hole and the second probe insertion hole, and the top cover is in sealed connection with the base; a ball head of the dry bulb hygrometer is inserted into the first probe insertion hole; a bulb of the wet bulb hygrometer is inserted into the second probe insertion hole; one end of the gauze is sleeved on a bulb of the wet bulb hygrometer, and the other end of the gauze is communicated to the outside of the top cover after sequentially passing through the communicating groove and the wet bulb gauze lead hole. The device can be used for rapidly testing the dry and wet conditions of the gas at the proton exchange membrane of the fuel cell membrane humidifier, and is simple in structure, short in response time and high in precision.

A test apparatus comprising including a housing with an interior forming a watertight main measuring chamber for housing a bar, a framework structure supporting the housing, a sample holder in the main chamber, and an air-conditioning system. The apparatus includes a humidifying system, a thermal regulation system, and a humidified air recirculation system. The sample holder has two lower support elements for supporting two end parts of the sample bar, respectively, corresponding to the unsealed end face of the sample bar. Two suspension arms are each hinged at its lower end to one of the lower support elements, the first arm hinged to an upper part of the framework structure, and the second arm hinged to be connected to a force gauge in the main chamber, the support elements suspended on the suspension arms to keep the sample bar axially suspended in a horizontal plane without causing axial stresses in the bar.

The invention discloses a high-precision anti-interference chilled mirror dew point measuring device and method based on semiconductor refrigeration, and relates to the technical field of atmospheric environment monitoring and precise instrument manufacturing. The device mainly comprises an optical measurement module, a temperature measurement module and a control processing unit. According to the method, the mirror surface is cooled through the semiconductor cooler, and the control processing unit integrates a self-adaptive PID algorithm to dynamically adjust the refrigeration power. Light emitted by the collimated light source is reflected by the reflective mirror surface and then received by the reflective photoelectric sensor, and the reflected light intensity is dynamically compensated based on a reference light signal through the change of reflectivity so as to eliminate common-mode interference. The measurement method comprises the following steps of: initializing and recording multiple paths of optical signal baselines; step cooling of the mirror surface is controlled, and synchronous monitoring is performed; the optical signal is calculated and processed in real time, and dew formation starting is judged based on a dynamic threshold value; pID control is switched to enable the temperature to be finely balanced near the dew point, and a stable value is recorded; correcting and outputting a final dew point value by utilizing the compensation model; refrigeration is stopped, the mirror surface is evaporated and reset through waste heat, and the next circulation is started.

The invention provides a method for drying a double-valve-seat electromagnetic valve after a liquid flow test. Comprising the steps of performing an engine liquid flow test; carrying out alcohol replacement washing; blowing off nitrogen; carrying out alcohol replacement washing again; carrying out nitrogen purging again; performing vacuum drying; carrying out nitrogen fluctuation blowdown; dew point testing; and confirming a dew point test result and taking measures. Through two-round interval alcohol replacement flushing and nitrogen blowing, interval time control, electromagnetic valve closing time and operation pressure during alcohol replacement flushing and nitrogen blowing, vacuum drying in a valve opening state, and cooperation with periodic power-on valve opening operation, an inner cavity of an electromagnetic valve is communicated with an external vacuum environment, low voltage is kept in the valve opening process, and the vacuum drying effect is improved. After vacuum drying, nitrogen is blown down for multiple times by fluctuating pressure, the dew point is tested, the dryness of the inner cavity is verified in a closed loop mode, and the problem that residual water is difficult to thoroughly remove after a liquid flow test is conducted on the double-valve-seat electromagnetic valve in an engine state is solved.

Embodiments of the present invention provide a frost point hygrometer apparatus utilizing dry ice and ethanol, or liquid nitrogen, as cryogenic coolant. FPH apparatus in accordance with embodiments of the present invention includes a copper cold finger with a sink immersed in a liquid cryogen to provide cooling power throughout the profile, a polished mirror disk residing at the opposite end of the cold finger with ambient air passing over it, a nichrome heater wrapped around the narrow shaft of the continuous cold finger and mirror piece to provide heat to the mirror, an optical source and detector, including an infrared light-emitting diode and a photodiode, to monitor the mirror's reflectivity as condensate accumulates in the form of dew or frost, a biconvex lens to focus the light reflected from the mirror into the photodiode, and a calibrated thermistor embedded in the mirror to measure the frost point temperature.

A cleaning robot includes: a main body; a motion driver provided in the main body and configured to move the main body; a pad motor provided in the main body and configured to rotate a pad provided on a lower surface of the main body; a humidity sensor provided around the wet cloth pad and configured to detect humidity around the wet cloth pad; and at least one processor configured to control the pad motor to stop rotating the wet cloth pad and control the motion driver to return the cleaning robot to a docking station, in response to determining that current humidity detected by the humidity sensor becomes lower than preset reference humidity while the motion driver and the pad motor are operating.

The application discloses a farmland soil moisture remote sensing monitoring method, device, equipment and medium, effectively solves the problem that the prior art lacks soil moisture accurate monitoring capable of deeply fusing remote sensing information and plant water transmission physical mechanism. The method provided by the application comprises the following steps: collecting multi-modal data, and constructing a water-sensitive crown layer comprehensive feature index based on the multi-modal data; within a preset time window, a crown layer-root water transmission model is constructed based on thermal infrared remote sensing images and meteorological data to quantize the contribution rate of each root layer soil to root water absorption; a standardized multi-task machine learning model is trained to obtain an inversion model of soil moisture of different soil layers; the trained inversion model is used to invert soil moisture at different depths of a crop root zone, and a soil moisture spatiotemporal distribution map is generated, so that farmland soil moisture remote sensing monitoring is completed based on the soil moisture spatiotemporal distribution map.

A humidity measuring device (10) is equipped with a temperature and humidity measurement unit (26) including a temperature sensing element that measures temperature and a humidity sensing element that measures humidity, a casing (12) having an accommodating section (20) in which the temperature and humidity measurement unit is accommodated, and a supply tube (22) that supplies a gas at a measurement location into the accommodating section, and a display unit (14) having a display device (54), and which is fixed to the casing. The display unit (14) further includes a display control unit (52) that controls the display device (54) to thereby cause the display device (54) to display at least one of the humidity of the gas measured by the humidity sensing element, or a dew point temperature of the gas calculated based on the temperature of the gas measured by the temperature sensing element, and the humidity of the gas measured by the humidity sensing element.

The utility model relates to a throw-in type high-temperature dew point measuring sensor, which comprises a shell and a crystal resonator, a flange-shaped fixing part is formed on the outer wall of the shell, the shell is limited into an upper part and a lower part by the fixing part, and the lower half part of the shell is inserted into a gas environment or a cavity to be detected; an air chamber for refrigeration is formed in the shell, and the air chamber is provided with an air inlet and an air outlet; the bottom of the shell is provided with a containing cavity communicated with the air chamber, the crystal resonator is fixed in the containing cavity, and the crystal resonator outputs resonant frequency parameters or equivalent electrical parameters of the crystal resonator through a first lead. According to the invention, the method can achieve the judgment of the dew formation moment in a high-temperature environment, and achieves the measurement of the dew point temperature on the basis.

The application relates to a battery water content determination method, system, device, equipment, medium and product. Moisture determination is performed on a target battery electrode sample according to a first critical temperature, the water content of the electrode sample is obtained, and then the water content of the target battery is determined according to the water content of the electrode sample. The first critical temperature is the temperature at which the network structure formed by the cathode main material and the water-based binder in the target battery is destroyed. The method can accurately characterize the water content in the target battery.

The invention relates to the technical field of coating spraying detection, and particularly discloses an external wall heat insulation coating spraying detection device based on an overhead working truck, which comprises a truck body, an extension arm is arranged on the truck body, a horizontal adjusting platform is rotatably arranged at the end part, far away from the truck body, of the extension arm, and a mounting platform is rotatably mounted on the horizontal adjusting platform; an adjusting mechanism is arranged on the horizontal adjusting platform, a detection cylinder is arranged on the mounting platform, and a detection assembly is arranged in the detection cylinder; after the operation vehicle body moves to the position below the detection area, the extension arm is controlled to extend the tail end to the target height, the mounting platform is driven to rotate through the adjusting mechanism on the horizontal adjusting platform so that the mounting platform can be kept perpendicular to the wall surface, and then the detection cylinder on the mounting platform is controlled to be close to the wall surface; and detecting the micro-porosity of the coating by using an internal detection assembly.

The present invention relates to a system for predicting sugar content on the basis of the moisture content of a fruit. An apparatus for predicting sugar content on the basis of the moisture content and specific heat of a fruit according to an embodiment of the present invention comprises: a heating unit for applying heating to both surfaces of the fruit; a temperature sensor unit for measuring the surface temperature of the fruit; a moisture prediction unit for collecting data on the temperature change over time of the fruit after the fruit is heated by the heating unit and calculating the specific heat of the fruit on the basis of the collected temperature change data to predict the moisture content; and a sugar content prediction unit for predicting the sugar content of the fruit on the basis of the predicted moisture content.

To provide an electric apparatus capable of acquiring humidity data accurately detected in a wide humidity zone.SOLUTION: The humidifier 1 switches a resistor for adjusting the detection humidity band of the humidity sensor 211, and when the temperature of the humidity sensor 211 fluctuates, the humidifier 1 uses the switched resistor to acquire, from the humidity sensor 211, humidity data detected in a state where the temperature difference between the room temperature and the temperature of the humidity sensor 211 is stable.SELECTED DRAWING: Figure 3

The invention discloses a dew-point instrument purging mechanism and a dew-point instrument service life prolonging method. The dew-point instrument purging mechanism comprises a detection gas inlet pipeline, a detection pipe, a gas exhaust pipeline and a purging pipeline, and the detection gas inlet pipeline is used for conveying to-be-detected gas; the input end of the detection pipe is connected with the detection gas inlet pipeline, and a dew point sensor is arranged in the detection pipe; the exhaust pipeline is connected with the output end of the detection pipe, and detected gas enters the exhaust pipeline from the output end of the detection pipe to be exhausted; the purging pipeline is connected with the input end of the detection pipe, the purging pipeline is connected with a pure air source, and the purging pipeline continuously conveys pollution-free air into the detection pipe after detection is completed or during a non-detection period. The purging pipeline continuously conveys pollution-free air to the detection pipe in the non-detection period, residual moisture and pollutants can be effectively removed, the dew point sensor is protected against corrosion or pollution, the service life is prolonged, and the reliability and stability of an instrument are improved.

This disclosure relates to a method for characterizing physical interfaces of a nested device (10) comprising a cavity (11) containing a volume of air and a glass (12), the cavity comprising walls (16) having a bottom (17) and a glass (12), provided with an inner surface (15) in contact with the volume of air and an outer surface (14) opposite the inner surface.The method comprises: applying a thermal gradient between the outer surface of the glass (12) and the bottom so as to obtain between the outer surface of the glass and the bottom a temperature difference ΔTs sufficient to generate condensation (25) on at least a portion (13) of the inner surface (15) of the glass (12); providing an optical coherence tomography (OCT) apparatus (30) configured to measure an interferometric signal; and once the temperature difference ΔTs has been obtained, measuring the interferometric signal for a measurement period (tm) so as to determine the presence of condensation on said at least a portion (13) of the inner surface (15) of the glass (12).

Method for testing humidity sensors, comprising the steps of: providing a plurality of devices (12) comprising the humidity sensors (11); generating, by a humidity generator (21), a flow of humid air, wherein the flow of humid air has a first relative humidity, a first temperature and a first pressure; cooling, by a heat exchanger (31), the flow of humid air so that it reaches a second relative humidity, a second temperature and a second pressure, wherein the second relative humidity is substantially equal to a predetermined relative humidity, wherein the second temperature is substantially equal to a predetermined temperature less than the first temperature and greater than the dew point temperature of the flow of humid air, wherein the second pressure is substantially equal to the first pressure; and distributing, by a distribution system (41), substantially equally the flow of humid air, having the second relative humidity and the second temperature, to the humidity sensors (11) of the devices (12).

This application provides a kiln tail high-temperature gas sampling and analysis instrument, comprising: a sampling probe assembly for inserting into the kiln tail flue to extract a high-temperature gas-sludge mixture; the sampling probe assembly includes a coaxially arranged outer sleeve and sampling tube, both of which are equipped with independent closed-loop cooling circuits; a pretreatment assembly connected to the outlet of the sampling probe assembly, including a pre-separation tank for preliminary gas-liquid-solid separation of the extracted gas-sludge mixture; and a purification and drying assembly connected to the pretreatment assembly, including a liquid ring pump, at least one ball filter, a gas-water separator, and a refrigerated air dryer for deep purification, moisture separation, and drying of the gas; the liquid ring pump is used to deliver the gas-sludge mixture at a high flow rate. This application solves the problems of traditional samplers being unable to withstand high-temperature shock, prone to clogging, requiring frequent maintenance, susceptible to sample contamination, and having slow response speed.