407results about "Material moisture content" patented technology

The invention provides a method for automatically monitoring the humidity of a corrugated board on line, and belongs to the technical field of corrugated board production. Uniform thermal pulses are applied to the surface of the corrugated board through a thermal infrared imaging device in combination with a thermal pulse excitation system, and high-resolution thermal response images are collected in real time. The system calculates thermal diffusivity and thermal attenuation characteristics based on an unsteady state heat conduction equation, generates a temperature distribution matrix, extracts a humidity characteristic spectrum by using a heat and humidity two-parameter neural network model, and establishes a corresponding relation between temperature and water content. Carrying out region segmentation through the humidity characteristic spectrum, identifying a humidity abnormal region, calculating a deviation value, and triggering an alarm when the deviation value exceeds a preset threshold value. The technical problem that in the prior art, corrugated board humidity detection mainly depends on manual sampling and special instruments, and real-time online monitoring on a production line cannot be achieved is solved.

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 discloses a micro-water density monitoring method and system based on multi-sensor fusion compensation, and relates to the field of power equipment safety. According to the micro-water density monitoring method based on multi-sensor fusion compensation, parameters are collected in real time through a micro-water collector composed of a ceramic heater, a humidity-sensitive capacitor collection sheet, a dew point sensor, a pressure sensor and a temperature sensor; a signal conditioning circuit and an analog-to-digital conversion module are integrated by adopting a four-layer PCB (Printed Circuit Board), and the micro-water collector is heated for multiple times by a main controller; carrying out digital filtering processing, cross validation operation and operation of eliminating influence of environment temperature on the acquired parameters; the measurement precision is improved through a sensor self-calibration mechanism, finally standardized micro-water density data are output, and an early warning function is triggered based on a multi-level threshold value. According to the invention, the problems of low precision and poor reliability of the measured micro-water density in the prior art are solved. Therefore, the accuracy of micro-water density measurement under complex working conditions is effectively improved, and data support is provided for predictive maintenance of intelligent equipment.

The invention discloses a saturated seepage zone and unsaturated moisture zone identification method based on an active heating optical fiber, and the method comprises the steps: carrying out the thermal response test of a to-be-tested soil body through the power supply of an AH-UWFBG optical cable, and obtaining a response curve of a temperature rise value [delta] T of the to-be-tested soil body along with time t; the AH-UWFBG optical cable is placed in the saturated soil body, and the temperature rising value delta Tsat of the saturated soil body and the time t0 when the slope of a delta T-lnt curve of the saturated soil body reaches the stable state are measured; judging a boundary line of a saturated seepage zone and an unsaturated water zone in the to-be-detected soil body by judging the slope of the delta T-lnt curve and the size relationship between delta T and delta Tsat, and calculating the water content under the condition of no seepage and the seepage speed under the condition of seepage; the invention provides a new method for monitoring the hydrological process, and more accurate and comprehensive soil moisture and seepage data can be provided for the fields of environmental science, water resource management, agricultural production and the like.

The invention discloses a hydrocarbon dew-point instrument calibration method, system and device and computer equipment, relates to the technical field of measurement, and aims to solve the problems. The method comprises the steps that a measured value obtained by hydrocarbon dew point measurement of standard gas through a hydrocarbon dew point instrument and a reference value obtained by hydrocarbon dew point measurement of the standard gas through a standard hydrocarbon dew point instrument are obtained, the standard hydrocarbon dew point instrument is a hydrocarbon dew point instrument with the measurement precision higher than a precision threshold value, and the hydrocarbon dew point instrument is calibrated based on the measured value and the reference value.

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 a building thermal insulation material product performance detection processing method, which fully considers the influence of actual environmental factors on the material performance by collecting the temperature value and the humidity value in the material application environment and calculating the dynamic weight of the heat conductivity coefficient and the water absorption rate, and compared with the traditional standard environment detection, the detection processing method has the advantages that the detection efficiency is greatly improved; and the performance of the material in different environments can be reflected more truly, so that the detection result is more suitable for the actual use condition. When the temperature value and the humidity value simultaneously exceed the standard range, the weight of the water absorption is secondarily amplified, and the heat conductivity coefficient and the qualified threshold of the water absorption are adjusted according to the fact that the temperature and the humidity exceed the specific value, so that the adaptability of the material in the extreme environment can be more accurately evaluated, misjudgment caused by a fixed standard is avoided, and the material quality is improved. And more reliable data support is provided for building design and construction.

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 relates to a potato leaf disease area positioning method, system and device.The method is applied to the potato leaf disease area positioning device.The method comprises the steps that a target infrared image of a potato leaf is segmented into a normal area and an abnormal area according to the environment temperature through a disease segmentation model obtained in advance; determining the water content of the target infrared image according to the leaf spectrum information through a pre-obtained water content prediction model; the leaf emissivity characteristic is calculated according to the water content through a pre-obtained temperature correction model, the temperature of the abnormal area is corrected based on the emissivity characteristic and the water content characteristic, and the temperature correction model is obtained based on potato leaf characteristic training; and through a pre-trained disease identification model, identifying a disease area from the abnormal area after temperature correction.

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.

The invention relates to the technical field of nuclear reactors, and discloses a high-temperature gas cooled reactor helium purification monitoring system and a start-stop and helium purification regeneration judgment method. The high-temperature gas cooled reactor helium purification monitoring system comprises a humidity monitoring module arranged in a high-temperature gas cooled reactor; the first monitoring module is arranged between the dust filter and the copper oxide bed and consists of a first moisture concentration monitoring unit, a first gas tritium concentration monitoring unit and a first liquid tritium concentration monitoring unit; the second monitoring module is arranged between the copper oxide bed and the molecular sieve bed and consists of a second moisture concentration monitoring unit, a second gas tritium concentration monitoring unit and a second liquid tritium concentration monitoring unit; and the third monitoring module is arranged between the molecular sieve bed and the low-temperature adsorber and consists of a third moisture concentration monitoring unit, a third gas tritium concentration monitoring unit and a third liquid tritium concentration monitoring unit. By monitoring the humidity of the high-temperature gas cooled reactor and parameters of all links of the helium purification system, a basis is provided for determining the helium purification regeneration period, and impurities are prevented from exceeding the standard or being excessively regenerated.

The invention relates to the technical field of pour point and condensation point measurement, in particular to a pour point and condensation point precise measurement method, system and equipment. The method comprises the following steps of: determining a condensation tendency index according to a temperature data sequence fluctuation characteristic, a humidity data sequence change trend and a coupling difference characteristic between temperature and humidity data sequences; a control redundancy index is determined according to the continuous working time of the fan, the condensation tendency index and the numerical deviation characteristics between the power and humidity data sequences; according to the instantaneous change characteristics of adjacent data points in the humidity data sequence, the temperature data sequence and the power data sequence of the current time window, determining a collaborative benefit index; determining a comprehensive evaluation score according to the collaborative benefit index and the control redundancy index; controlling the fan to execute a corresponding operation strategy according to the comprehensive evaluation score and a preset mapping relation between the score and the operation strategy; the operation strategy is repeatedly adjusted until the pour point and the condensation point of the sample are determined, and therefore the fan power responds to environment changes in real time.

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 present technology pertains to a measurement device capable of suitably measuring the spectrum of a measurement light. A measurement device according to the present technology is provided with: a luminous flux splitting unit for splitting substantially parallel luminous flux into a first luminous flux and a second luminous flux, refracting and emitting the first luminous flux, and emitting the second luminous flux in a direction symmetrical to the emission direction of the first luminous flux on the basis of a first reference plane that includes the traveling direction of the substantially parallel luminous flux, thereby causing the first luminous flux and the second luminous flux to interfere with each other; a light-condensing unit for condensing the first luminous flux and the second luminous flux on a second reference plane that includes the traveling direction of the substantially parallel luminous flux and is orthogonal to the first reference plane; a sensor unit for detecting interference light between the first luminous flux and the second luminous flux; and a calculation unit for calculating the spectrum of the substantially parallel luminous flux on the basis of a detection result by the sensor unit. The present technology can be applied to, for example, a spectroscopic measurement device.

The present invention relates to a measuring device and a method for determining and outputting the dew point temperature. A first humidity sensor unit (10; 110; 210) is configured for determining at least one dew point correction parameter and comprises a first humidity sensor (11), a first temperature sensor (12), and a temperature change element (13). A second humidity sensor unit (20; 120; 220) is configured for continuously determining the dew point temperature and comprises a second humidity sensor (21) and a second temperature sensor (22).By means of a control unit (30) the temperature of the first humidity sensor unit (10; 110; 210) is changed via the temperature change element (13) and a dew point correction parameter is determined; furthermore, the dew point correction parameter from the first humidity sensor unit (10; 110; 210) is used to correct measured values ​​of the second humidity sensor unit (20; 120; 220) and to continuously output corrected dew point temperatures based on the corrected measured values.

The utility model discloses concrete slump detecting and adjusting equipment in a concrete truck. The night vision camera is arranged to shoot images of concrete, the infrared thermometer is arranged to detect the temperature of the concrete, the dryness and humidity sensor is arranged to detect the dryness and humidity in the stirring tank body, and a driver of the concrete truck observes the images through the display control device. And whether the slump of the concrete is insufficient or not is judged by combining temperature and humidity data, and when the slump of the concrete is insufficient, the display control device can control the adjusting valve and the hydraulic pump to output quantitative slump adjusting liquid into the stirring tank body, so that the slump of the concrete in the concrete transport vehicle is detected and adjusted more accurately.

The invention discloses a soil body dry layer distinguishing and dry layer thickness measuring method based on distributed temperature sensing, and the method comprises the steps: respectively implanting an AH-DTS measuring pipe and a PI-OFDR measuring pipe into a to-be-measured soil body, and forming a distributed monitoring network covering a target area. Acquiring temperature data of the AH-DTS measuring tube in real time by using a demodulator, and performing a heating test once at a preset time interval; meanwhile, data of the PI-OFDR measuring pipe are collected in real time, and soil temperature and humidity information is obtained. According to a calibration formula, the measured temperature data is converted into the moisture content of the soil body, and in combination with profile data of the temperature, the humidity and the moisture content, an area with an obvious temperature minimum value is comprehensively analyzed, so that the judgment of the dry layer of the soil body and the measurement of the corresponding thickness are realized. According to the invention, continuous and real-time monitoring of soil parameters can be realized, and reliable technical support is provided for determination of the existence state and thickness of a dry layer.

The invention discloses an anti-condensation method for a closed cavity with a ventilation valve, and the method comprises the following steps: setting a plurality of measurement points in the closed cavity to obtain a moisture diffusion coefficient of each measurement point in the closed cavity, and fitting to obtain an influence function of temperature, humidity and a humidity adjusting material on the moisture diffusion coefficient; according to the moisture diffusion coefficient and each influence function, constructing a simulation model to simulate the distribution of moisture in the closed cavity; acquiring internal temperature and humidity and external environment information of the closed cavity; obtaining condensation conditions according to the internal temperature, humidity and external environment information of the closed cavity in combination with a moisture diffusion coefficient; and according to the moisture distribution and condensation conditions in combination with the simulation model, obtaining the use amount and position distribution of the anti-condensation humidity adjusting material. Condensation prevention of the closed cavity with the ventilation valve is achieved.

The invention discloses a water content detection method and device in an extract drying process and a storage medium, and belongs to the field of extract production. Aiming at the problem of low detection accuracy of the water content of the current extract, the detection method comprises the following steps: firstly, acquiring text information including temperature, heating time and other information, a thermodynamic diagram and an RGB (Red, Green and Blue) image from an extract drying system; cleaning the text information, and extracting numerical feature data to generate a first embedded vector; generating a pseudo-color graph according to the thermodynamic diagram to obtain a second embedded vector; and extracting a high-dimensional feature vector of the RGB image by using the pre-trained visual model. And splicing the three vectors into a unified input sequence, adding position codes to obtain a second embedded vector, carrying out coding fusion on the multi-modal features through a Transform encoder, inputting the multi-modal features into a fine-tuning trained large language model, and outputting the water content of the extract. The water content detection accuracy in the extract drying process is effectively improved.

The invention discloses an inert gas dynamic monitoring control system for metal powder preparation, belongs to the technical field of inert gas monitoring, and solves the problems of signal drift caused by nano-particle adsorption and detection result drift or distortion caused by oxygen release of oxide particles. Comprising a parameter set operation module, an information output module in communication connection with the output end of the parameter set operation module, and a core detection module, a nano-particle detection module, an environment detection module and an auxiliary detection module which are in communication connection with the input end of the parameter set operation module, the core detection module collects the oxygen concentration and the moisture dew point. According to the system disclosed by the invention, all detection modules are used for acquiring data, and methods of multi-dimensional processing, real-time tracking, correction and the like are adopted, so that full-chain fine processing is realized, the problems of nano-particle adsorption and oxide oxygen release are effectively solved, a high-precision correction scheme is provided, the calibration period is prolonged, and drift or distortion of a detection result is slowed down.

The invention relates to the technical field of tobacco leaf loosening detection equipment, in particular to a device for detecting the stretching degree of tobacco leaves after loosening and moisture regaining processing. According to the technical scheme, the device comprises a detection device for detecting tobacco leaves, and further comprises a material taking conveying line, a material distributing vibration disc, a material conveying line, a square detection cover and a material returning conveying line which are arranged in the detection device in sequence. Through structural design of the material taking conveying line, the material distributing vibration disc, the material transporting conveying line, the detection square cover, the material returning conveying line, the industrial camera and the like, the light transmittance of the tobacco leaves is analyzed through the image recognition technology, and the stretching degree of the tobacco leaves is converted into a quantitative index of the area proportion of a gray value region; the problems of strong evaluation subjectivity and poor consistency caused by dependence on artificial sensory judgment in the prior art are solved. And meanwhile, automatic extraction, dispersion, image acquisition and material recovery of tobacco leaf samples are also realized. The whole detection process does not need manual intervention, and the detection efficiency is remarkably improved.

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.

The invention discloses a method, a system, a device and equipment for calibrating a hydrocarbon dew-point instrument. The calibration method of the hydrocarbon dew-point instrument comprises the following steps: acquiring a hydrocarbon dew-point measurement value output by a to-be-calibrated hydrocarbon dew-point instrument for standard gas under set pressure; determining a hydrocarbon dew point standard value of the standard gas under the set pressure according to the set pressure; determining a calibration value associated with the hydrocarbon dew point measurement value according to the hydrocarbon dew point measurement value and the hydrocarbon dew point standard value; and calibrating the hydrocarbon dew-point instrument to be calibrated based on the corresponding relationship between the hydrocarbon dew-point measurement value and the calibration value. According to the technical scheme provided by the embodiment of the invention, the calibration can be completed under the condition that the hydrocarbon dew-point instrument to be calibrated does not need to be disassembled, and the calibration cost is reduced.

There is provided a composition for topical application to the penis for the treatment of erectile dysfunction, the composition being free of glyceryl trinitrate (GTN), sildenafil and an acetylcholinesterase inhibitor, and comprising volatile and non-volatile solvents, the volatile solvents comprising a lower alcohol and water and the non-volatile solvents comprising a polyhydric alcohol and a glycol. Preferably, the composition does not contain any pharmaceutically active ingredients for the treatment of erectile dysfunction. Also provided is a method of determining the cooling ability of a test composition, such as the composition described above.

The present technology pertains to a measurement device capable of suitably measuring the spectrum of a measurement light. A measurement device according to the present technology is provided with: a luminous flux splitting unit for splitting substantially parallel luminous flux into a first luminous flux and a second luminous flux, refracting and emitting the first luminous flux, and emitting the second luminous flux in a direction symmetrical to the emission direction of the first luminous flux on the basis of a first reference plane that includes the traveling direction of the substantially parallel luminous flux, thereby causing the first luminous flux and the second luminous flux to interfere with each other; a light-condensing unit for condensing the first luminous flux and the second luminous flux on a second reference plane that includes the traveling direction of the substantially parallel luminous flux and is orthogonal to the first reference plane; a sensor unit for detecting interference light between the first luminous flux and the second luminous flux; and a calculation unit for calculating the spectrum of the substantially parallel luminous flux on the basis of a detection result by the sensor unit. The present technology can be applied to, for example, a spectroscopic measurement device.

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 utility model proposes a basic measurement box humidity measurement tool, which is located in a temperature and humidity calibration box, and includes a measurement box body with two ends connected, a mounting structure arranged on the measurement box body, a wet-dry bulb meter mounted on the measurement box body through the mounting structure, and a wind control component installed on one end of the measurement box body for controlling air flow. The utility model installs a wet-dry bulb meter and a dew point meter in a temperature and humidity calibration box, and then measures humidity through the wet-dry bulb meter and the dew point meter, which can ensure measurement accuracy, and the humidity in the temperature and humidity calibration box is not controlled by constant humidity salt, which will not corrode the dew point meter, ensuring the service life of the dew point meter; the air flow speed in the measurement box is controlled by the wind control component, ensuring that the wet-dry bulb meter is in a normal working wind speed environment, thereby ensuring the accuracy of the wet-bulb meter measurement.

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.