178 results about "Hygrometer" patented technology

The present invention relates to a humidity sensor, and more particularly, to a resistance film-type real-time chromogenic humidity sensor produced with a polyelectrolyte thin film. The humidity sensor according to the present invention is a chromogenic hygrometer in which a polyelectrolyte nano thin film that absorbs moisture is formed on a reflective layer, and the nano thin film varies terms of color and electrical resistance as moisture is absorbed and the thickness varies. The hygrometer according to the present invention is a dual-function hygrometer, the color and resistance of which vary. Provided is the chromogenic hygrometer in which the sensor made using a PSS-b-PMB thin film varies in color between purple, blue, green, yellow, orange, and red according to humidity at a very high response speed of within one minute.

The invention discloses a control method and device of an air conditioner, the air conditioner, a storage medium and a computer program product, and the method comprises the steps that in the refrigeration operation process of the air conditioner, whether the current environment is in a temperature and humidity state needing preferential dehumidification or not is determined according to the indoor environment temperature and the indoor relative humidity; if it is determined that the current environment is in the temperature and humidity state needing preferential dehumidification, the frequency of a compressor and the rotating speed of an inner fan are adjusted, and the air conditioner executes dehumidification operation; after the dehumidification operation is completed, the environment dew point temperature is calculated based on the indoor environment temperature and the indoor relative humidity; dynamically adjusting the running frequency of the compressor and the rotating speed of the inner fan according to the environment dew-point temperature and the evaporator surface temperature to enable the evaporator surface temperature to be higher than the environment dew-point temperature. According to the scheme, the anti-condensation response speed is increased, the control precision and the environmental adaptability are improved, and the balance of efficient dehumidification and stable anti-condensation is achieved.

The invention discloses a grounding resistance monitoring and early warning system, which belongs to the field of grounding resistance monitoring, and comprises an excitation measurement module which is deployed and installed on each grounding loop of a grounding grid to send a plurality of excitation measurement signals with different frequencies, generates induction current on the grounding loop and a grounding electrode, and sends the induction current to the grounding loop; the monitoring and sensing module is deployed and buried in soil around the grounding electrode to form a monitoring network matched with the grounding network, receives the induction current and collects the environment temperature and humidity of the surrounding soil, and the early warning management module is used for obtaining the induction current, the environment temperature and humidity received or collected by the monitoring and sensing module and sending early warning information to the monitoring and sensing module. According to the method, the grounding resistance value of the grounding loop is calculated, health judgment of the grounding resistance is performed according to the calculation result, corresponding early warning measures are taken according to the health judgment, the grounding resistance in the grounding grid is managed, predictive maintenance can be realized, potential risks can be recognized in advance, and sufficient response time is reserved for replacement or maintenance of the grounding grid.

The utility model provides a pre-stressed anchor cable axial force loss and anchoring force deterioration test device under dry-wet cycle, which comprises a test water tank for accommodating a standard rock mass test block; the water injection and drainage device is arranged on the test water tank and used for controlling water level change in the water tank; the anchoring structure is composed of an anchor cable implanted into a preset hole channel of the rock mass test block and a grouting body poured between the preset hole channel and the anchor cable; the strain gauges are arranged at intervals in the axial direction of the anchoring section of the anchor cable; the pressure gauge is sleeved on the anchor cable; the plurality of hygrometers are buried in the grouting body; the strain gauges, the hygrometer and the pressure meter are connected with the data acquisition instrument through cables; and the heating assembly is arranged in the rock mass test block and the test water tank and is used for simulating a temperature change environment. According to the invention, the simulation of the dry-wet cycle working environment of the rock mass test block is realized, the drying process of the rock mass test block is accelerated through the heating assembly, the test time consumption is shortened, meanwhile, the hygrometer is matched to accurately control the dry-wet index of the test sample, and the accurate and controllable test variable is realized.

The utility model relates to the technical field of hygrothermograph protectors, in particular to a protective device for a hygrothermograph, which comprises the hygrothermograph, a protector mechanism arranged outside the hygrothermograph and a gauze protection mechanism mounted on the protector mechanism. The protective tool mechanism comprises a boosting screw rod, a threaded sleeve movably installed outside the boosting screw rod and a protective shell installed outside the threaded sleeve. The two protective shells which are symmetrically distributed are arranged on the two sides of the hygrothermograph, the gauze element on the winding rod can be flatly spread and expanded along with outward constant-speed stretching of the two protective shells, and the two expanded gauze elements can be attached to the window, used for detecting the environment temperature and humidity, of the back face of the hygrothermograph. At the moment, the device can be subjected to dustproof protection in a random standing state or when being mounted on a wall, so that the sensor is prevented from being polluted by dust.

1. The name of the design product: hygrometer (26-simplified version I). 2. The use of the design product: the product is used for detecting and displaying temperature, humidity, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. The name of the design product: hygrometer (WS32). 2. The use of the design product: for measuring temperature and humidity. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model discloses a portable humiture measuring instrument, which comprises a humiture measuring instrument, a connecting line is arranged on the humiture measuring instrument, a sensor rod is arranged at the end part of the connecting line, and the portable humiture measuring instrument is characterized in that a folding storage assembly for releasing and storing the connecting line is arranged on the rear side of the humiture measuring instrument; the folding storage assembly comprises a mounting plate arranged on the rear side of the temperature and humidity meter, a plurality of sliding grooves are formed in the mounting plate, sliding blocks are arranged in the sliding grooves in a sliding mode, matching wheels are rotationally arranged on the sliding blocks, a plurality of top side wheels are arranged on the upper side of the mounting plate, and the top side wheels are arranged at the top positions between the sliding grooves. The connecting line is wound around the outer surface of the matching wheel and the outer surface of the top side wheel, through the structural design of the folding storage assembly, the length of the connecting line can be released as long as the length of the connecting line needs to be used by a person, and the too long connecting line does not need to be tidied and folded.

The present application belongs to the technical field of thermal comfort, and particularly relates to an index extraction method for constructing a thermal comfort model, comprising the following steps: S1, selecting a test site, and cleaning up articles and sundries that are not needed in the site; S2, setting up an infrared thermal image temperature measurement sensor, an air temperature and humidity sensor, an air speed sensor, a visible light sensor, and a resistance type dew point hygrometer in the site. The present application proposes that two groups of different test data are respectively collected in the process of data collection, and the two groups of data are respectively screened, and finally in the process of data preprocessing, the site data containing the subjects in the two groups of data are compared with the site data not containing the subjects in the other group, whether the same items in the two groups of data exist abnormities is judged, if accurate, the process continues, if the data is abnormal, data collection is re-performed, so that the index data accuracy for constructing the thermal comfort model is improved.

This application relates to the field of constant temperature and humidity control technology, and discloses a control method and control device for a constant temperature and humidity chamber, as well as the chamber itself. The control method for the constant temperature and humidity chamber includes: acquiring the internal temperature, internal humidity, and surface temperature of the main evaporator of the chamber; calculating the dew point temperature based on the internal temperature and humidity; determining whether the main evaporator has a concealed dehumidification function based on the surface temperature and dew point temperature; and, if a concealed dehumidification function exists, controlling the constant temperature and humidity chamber to execute a preset optimized control logic in terms of humidity control. This application can improve the stability of humidity control in a constant temperature and humidity chamber.

1. Name of the product in this design: Waterproof remote temperature and humidity meter. 2. Application of this design: This product is used to monitor environmental conditions in various industries such as planting, breeding, and transportation, and to obtain variable conditions such as internal temperature and humidity. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. Name of the designed product: hygrometer. 2. Use of the designed product: for measuring air humidity. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

Provided is a moisture meter including a mass measurement unit for measuring the mass of a specimen, a heater for heating the specimen, a control arithmetic unit configured to control the heating unit to heat the specimen until a change in the mass of the specimen becomes not more than a predetermined threshold and calculate the moisture content of the specimen, a timepiece for measuring a heating time, and a storage unit. The control arithmetic unit measures the moisture content of a standard substance for inspection and a heating time, diagnoses the presence / absence of an abnormality in the heating unit by comparing a measured heating time with a predetermined time as a set heating time stored in the storage unit in advance.

1. The name of the design product: hygrometer and its main body. 2. The use of the design product: the overall use of the products of designs 1-6 is used as a hygrometer, and the partial use of the products of designs 2 and 5 is used as the main body of the hygrometer. 3. The design points of the design product: the shape of designs 1, 3, 4, 6; the shape shown by the solid line of designs 2 and 5. 4. The picture or photo that best indicates the design points: the perspective view of design 1. 5. Design 1 is designated as the basic design.

This invention provides a dehumidification system that can stably control the dew point in a low-dew-point room based on weather conditions. [Solution] The dehumidification system estimates the predicted value of the outside air dew point at a predetermined date and time in the future based on weather forecast data. The dehumidification system also estimates the supply air inlet temperature, which indicates the temperature at the inlet of the supply air area, and the supply air inlet absolute humidity, which indicates the absolute humidity at the inlet of the supply air area, based on the inlet conditions of the supply air area. Then, based on the predicted value of the outside air dew point, the supply air inlet temperature, and the supply air inlet absolute humidity, the dehumidification system calculates the regeneration inlet target temperature, which indicates the target temperature at the inlet of the regeneration area at a predetermined date and time in the future. After calculating the regeneration inlet target temperature, the dehumidification system performs at least one of the following actions to bring the temperature of the regeneration heater closer to the regeneration inlet target temperature: temperature control of the regeneration heater, airflow control of the first fan installed on the inlet side of the supply air area in the first duct, and airflow control of the second fan installed on the outlet side of the regeneration area in the second duct.

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.

The invention relates to the technical field of transformer substation flood prevention, in particular to a transformer substation flood prevention intelligent control device, which is applied to a transformer substation and comprises a sensing system, a control system and a control system, and is characterized in that the sensing system comprises a first liquid level meter, a hygrometer, a second liquid level meter, a camera and a proximity sensor; the execution system comprises a drainage mechanism, an exhaust mechanism and an electric lifting baffle mechanism; the decision control system comprises a weather forecast data receiving module, an image recognition module and an intelligent control module; and the man-machine interaction and communication system comprises a local touch screen, an audible and visual alarm and a communication unit. The intelligent control module is combined with the real-time water level change rate outside the transformer substation and rainfall forecast of a meteorological station in the future 2 hours, the water level value within 30 min is predicted through a flood routing model, flood disaster advanced early warning is achieved, when the predicted water level exceeds a threshold value, and if no person or obstacle approaches, the intelligent control module controls the baffle to descend, and flood disaster early warning is achieved. And the flood disaster can be actively defended without manual intervention.

The utility model relates to a textile mildew-proof protection device in the technical field of textile protection. A vertical partition plate and a transverse partition plate are installed in an inner cavity of the protection box, a fixing ring is installed at the lower end of the transverse partition plate, a plurality of heating blocks are installed on the outer wall of the fixing ring, and a fan used for controlling hot air flow to be conveyed into the protection box is installed in the middle of the fixing ring. After the textile is placed on the supporting plate, the box door is closed, air circulation is facilitated through the arrangement of an air inlet and a dust blocking plate, when a hygrometer detects that the humidity of an upper cavity of the protection box exceeds a preset threshold value, a heating block, a motor and an ultraviolet lamp are started synchronously, and the heating block heats a middle hole of a fixing ring and a lower cavity of the protection box; the motor controls the fan to convey hot air to the left cavity and the right cavity of the protection box, moisture in the upper cavity of the protection box can be discharged conveniently, the multiple ultraviolet lamps can sterilize the upper cavity of the protection box, and therefore the textile protection device can well protect textiles.

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.

1. The name of the design product: temperature and humidity meter electronic alarm clock (TH7S). 2. The use of the design product: electronic alarm clock for displaying time, temperature and humidity. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a 1E-grade hygrograph for a high-temperature gas cooled reactor and a calibration method. The calibration method comprises the steps that one end of a humidity sensor is connected with a glass sealing through joint, and the other end of the humidity sensor is in contact with helium; the transmitting circuit is connected with one end, far away from the humidity sensor, of the glass sealing penetrating joint, and the transmitting circuit is connected with the humidity sensor through a conductor in the glass sealing penetrating joint; one end of the top plate circuit is welded with the transmitting circuit, and the other end of the top plate circuit is welded with the signal connector; the first O-shaped sealing ring is mounted in a sealing groove of the glass sealing penetrating joint; the metal protective cover is installed at one end of the glass sealing penetrating connector. The metal shell is installed at the other end of the glass sealing penetrating connector. The screw rod is fixed on the glass sealing through joint, and the screw rod is matched with the screw to connect and fix the metal shell and the glass sealing through joint. The invention belongs to the field of hygrometers. The hygrometer provided by the invention is compact in overall structure, safe and reliable.

The invention relates to a gas tank control method and system, a terminal and a storage medium, and relates to the technical field of electrical equipment, and the method comprises the steps: obtaining the temperature and humidity in a gas tank, and calculating the moisture content according to the humidity; acquiring a pressure value of the gas tank; calculating the actual density of the gas in the gas tank according to the pressure value, the moisture content and the temperature; calculating a theoretical pressure difference range corresponding to the working frequency of the blower device based on the actual density; the gas pressure difference value of the two sides of the filtering assembly is obtained through a pressure difference sensor; under the condition that the gas pressure difference value exceeds the theoretical pressure difference range, filter cotton replacement prompt information is generated. The blower device is controlled to operate according to signals of the temperature and humidity sensor, and dry air treated by the dehumidifier is fed into the air box; and meanwhile, the opening degree of the electromagnetic proportional valve is adjusted based on feedback of the pressure detection device, damp and hot gas is exhausted, gas replacement is achieved by coordinating gas inlet and gas exhaust, and the cooling and dehumidification effects are achieved while the positive pressure value of the gas tank is maintained.

1. Name of the product in this design: Thermometer and Hygrometer (102C). 2. Purpose of this design: For measuring temperature and humidity. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention discloses a hygrometer, comprising a humidity sensor, a capacitance detection module, a backflushing module, and a main controller. The humidity sensor is used to detect the humidity of the environment to be tested. The capacitance detection module is electrically connected to the humidity sensor and is used to measure the capacitance value of the humidity sensor. The backflushing module is used to deliver cleaning gas to the humidity sensor to clean it. The main controller is electrically connected to the capacitance detection module and the backflushing module, and is used to adjust the capacitance bias of the capacitance detection module based on the capacitance detection results and to perform automatic zero calibration to optimize humidity measurement. This invention improves the accuracy of measured humidity data.

The invention provides a calibration method and system for a temperature and humidity sensor, and the method comprises the steps: obtaining a real-time temperature value of a calibration cavity and a real-time humidity value of the calibration cavity within a preset maintenance time, and obtaining a temperature driving signal and a humidity driving signal based on the real-time temperature value and the real-time humidity value, carrying out temperature and humidity adjustment on the calibration cavity based on the temperature and humidity adjustment result and obtaining real-time temperature and humidity values again until a preset temperature stable condition and a preset humidity stable condition are met, and collecting a first temperature and a first humidity of the chip; calculating four correction coefficients based on the real-time humidity value, the first temperature of the chip and the first humidity; and calculating a corrected humidity value based on the four correction coefficients, the chip first temperature and the chip first humidity, calculating a humidity difference value based on the real-time humidity value, and if the humidity difference value is smaller than or equal to a preset humidity difference threshold value, completing calibration. According to the calibration method of the temperature and humidity sensors, low calibration efficiency and poor calibration batch consistency are avoided, and automatic parallel calibration of the plurality of temperature and humidity sensors is realized.

The present application relates to the technical field of liquid water content detection in air, and particularly relates to a method and device for detecting liquid water content in air by using a hot-wire water content meter. The method comprises obtaining first data related to the hot-wire water content meter and second data related to a cloud particle probe, wherein the hot-wire water content meter and the cloud particle probe are on the same detection platform; establishing a data set of physical parameters changing with time according to the first data and the second data; setting a cloud entering standard and calculating liquid water content according to a liquid water content calculation formula; calculating the liquid water content of each sub-class according to the sub-class of the cloud particle probe, and selecting the optimal value of the liquid water content. The present application solves the problems of error overlap caused by multi-parameter combination calculation in the laboratory empirical formula of the prior art, and the error caused by human operation.

The invention relates to a forest steppe combustible moisture content detection method, and relates to the field of combustible moisture content detection.The forest steppe combustible moisture content detection method comprises the steps that a combustible sample to be detected is weighed and then put into a container, and the container is put into a high-low temperature test box; setting the temperature and humidity of a high-low temperature test box and the wind speed of an airflow generator; acquiring atmospheric humidity, atmospheric temperature and wind speed for recording weather elements; adding quantitative water into the container, and recording the volume of the added water and the hygrometer value of the combustible; dividing the collected data set into a training set, a verification set and a test set; calculating input parameters by using a neural network, and adjusting the input parameters to receive atmospheric temperature, humidity, wind speed and combustible humidity parameters as input; a training set is used for training a model, hyper-parameters of the model are adjusted through a verification set, an optimization algorithm is utilized, network weight is updated, an error between a predicted value and the actual moisture content is minimized, and the problem that the moisture content of the combustible is not accurately measured is solved.

The invention discloses a use method of a passive air humidity detection device based on an electret. The use method comprises a delivery stage and a use stage, and in the delivery stage, the use method comprises the following steps: carrying out humidity detection under different humidity conditions to obtain different electric field change amplification signals; the signals are amplified according to different electric field changes and substituted into a preset humidity calculation model, and a slope correction coefficient and a zero correction coefficient are obtained through calculation; in the using stage, the using method comprises the steps that humidity detection is carried out according to a preset humidity calculation model by adopting the slope correction coefficient and the zero correction coefficient. The passive air humidity detection device based on the electret has high reliability and stability, the use method of the detection device is divided into a factory leaving stage and a use stage, the detection device is corrected in the factory leaving stage, the humidity value of the current environment is calculated according to the correction result in the use stage, and the humidity value of the current environment is calculated according to the correction result. And the accuracy and precision of humidity detection are improved.

1. The name of the design product: hygrometer (black ball 6249). 2. The use of the design product: the design product is used for temperature and humidity measurement and display. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

This item is a thermo-hygrometer that measures and displays temperature and humidity.