83 results about "Moisture analysis" patented technology

A toploading weighing instrumentality which determines loss on drying by a cylindrical microwave. The cylindrical cavity of the microwave includes a power supply, a magnetron, a power module operatively coupled between said power supply and said magnetron for driving said magnetron, a wave guide communicating with the magnetron and with a microwave containment chamber for delivering energy thereto, at least one microwave energy sensor for sensing microwave energy or magnetic and/or electric field strength within the chamber for controlling, inter alia, the loss on drying process of the sample being assayed and determining when the drying process is complete. A precision electronic balance is operatively disposed within the microwave chamber for allowing a specimen being assayed to be weighed. In addition, a ventilation chamber is provided for venting moisture from the microwave chamber. A processing unit and associated memory allows means for data acquisition, processing and storage of data from the power module driving the magnetron, the microwave energy sensor(s) for sensing magnetic and/or electric fields and the electronic balance for weighing the initial and final weights of the specimen for loss on drying moisture analysis. Both signaling the removal of microwave energy in the chamber.

The present invention relates to the field of iron smelting material preparing technology and solves the technological problem of measuring and controlling the moisture in sintered mixture material for eliminating the fluctuation of moisture content in the mixture material with the temperature. The method calculates the amount of water needed to add to based on required material moisture content, material weight, original material moisture content, correction coefficient and other parameters. The present invention establishes mixture material balancing theory. The present invention can raise the utilization factor of sintering machine by 3-5 % and is suitable for in-situ moisture analysis.

A system includes a moisture analyzer configured to detect moisture in a process gas. The moisture analyzer includes an absorption cell that encloses and conducts the process gas. The moisture analyzer also includes a pressure control device that may reduce a pressure of the process gas inside the absorption cell. The moisture analyzer includes a light emitting device that may transmit light through the process gas inside the absorption cell, as well as a photodetector that may detect an intensity of the light transmitted through the process gas and exiting the absorption cell.

The invention relates to an intelligent fully-automatic sample preparation system and a method thereof. The system mainly includes a bulk sample temporary-storage and transportation module, a sample preparation module, a full-moisture analysis module, a rejected sample temporary-storage module, a sample bottle packaging module, a sample bottle transportation and storage module and an industrial robot; and the industrial robot is a robot arm, and the bulk sample temporary-storage and transportation, the sample preparation module, the full-moisture analysis module, the rejected sample temporary-storage module and the sample bottle packaging module are arranged on the working radius of the robot arm at intervals along a circumferential direction. The industrial robot transfers sample materials among the bulk sample temporary-storage and transportation, the sample preparation module, the full-moisture analysis module, the rejected sample temporary-storage module and the sample bottle packaging module to realize unattended fully-automatic sample preparation, prepared samples meet lab test requirements, and various problems of existing manual operations are solved.

The invention relates to a grain moisture analysis meter which comprises a hopper, a plastic plate, a sensor plate, a base plate, a base plate motor and a control circuit. The hopper is vertically placed, the top of the hopper is provided with an opening used for receiving grains, the bottom of the hopper is sealed by the base plate, the base plate opens and closes the hopper under the drive of the base plate motor, at least one side wall of the hopper is provided with a slot, the plastic plate is embedded into the slot, the sensor plate is attached to the plastic plate to be arranged on the outer side of the hopper and insulates from the hopper, and the hopper and the sensor plate are made of conductive materials and form a positive electrode and a negative electrode of the capacitive grain moisture analysis meter. The invention further relates to grain moisture analysis method and a grain drying system.

Belonging to the technical field of analytical chemistry, the invention discloses an analysis method for low field nuclear magnetic resonance nondestructive detection of Daqu moisture content. The invention applies low field nuclear magnetic resonance analysis technology to Daqu moisture content analysis, and lays the foundation for rapid, nondestructive and on-line detection of Daqu moisture content. The method uses specific low field nuclear magnetic resonance equipment, and under the circumstance of determined optimal equipment parameters, utilizes CPMG sequence analysis means to perform equipment calibration on semaphore (first peak point) of T2 spectrum, and establishes a standard curve and standard equation of first peak value and Daqu moisture content so as to rapidly determine the Daqu moisture content. The invention provides the basis for nondestructive on-line moisture content detection of Daqu.

Systems and methods for the on-site determination of water content in crude oil. The water content of crude oil is determined by mixing a sample of the crude oil with a fixed amount of molecular sieves. The electromagnetic characteristics of the molecular sieves upon mixing with the sample are then measured and used to determine the water content of the sample. This provides a simple approach to measuring the moisture content in crude oil that is extremely fast, accurate, and reproducible without the use of hazardous chemicals.

The invention belongs to the technical field of soil moisture analysis and specifically discloses a soil moisture content acquisition device and its operating method. The soil moisture content acquisition device comprises a probe, an insulating rod, a PVC insulating tube, an antenna, a tapered plug, a coaxial cable and a top cover. According to the soil moisture content acquisition device and its operating method, on one hand, the device is reasonably designed, has a compact structure, has a wide range of application and can rapidly and accurately acquire soil moisture information and error is small; and on the other hand, the device can remotely collect and monitor soil moisture information and is convenient to use, and soil moisture information acquisition and management invested costs are reduced. Meanwhile, production costs are low and the device is easy to popularize.

The online RC high-temperature smoke moisture device comprises: a RC humidity sensor with a macromolecular film capacitor humidity sensor and a temperature sensor and a heater (Hr) connected to a heating temperature controller, a high-frequency oscillation circuit with input end connected to said humidity sensor and output end connected to the following conversion circuit, a frequency/voltage conversion circuit to output voltage signal direct proportioned to water content and connect to the following compensation circuit and take zero point full scale calibration by a calibration circuit, a smoke compensation treatment circuit, and a current-to-voltage conversion circuit. Wherein, directed outputting the calibrated signal or through the current-to-voltage conversion circuit to display device. This invention ensures the precision and reliability to meet practical application request.

The invention discloses a pre-processing system and a pre-processing method of trace moisture analysis in ultrahigh-purity gas. An ultrahigh-purity gas sample bottle is connected to a pressure-reducing valve through a pipeline. A three-way flow path valve, a first diaphragm valve, a trace moisture analysis instrument and a second diaphragm valve are successively connected to the downstream of the pressure-reducing valve in a flow direction of an ultrahigh-purity gas sample through the pipeline. One end of the three-way flow path valve is detachably connected to a high-vacuum system. The pre-processing method correspondingly includes following steps: enabling the ultrahigh-purity gas sample to pass through a simple purging device and enabling moisture in the device to be rapidly discharge through a vacuum process in the high-vacuum system and a heating process in a heating device to complete the pre-processing operation before the trace moisture analysis. The pre-processing system and the pre-processing method of the trace moisture analysis in the ultrahigh-purity gas can allow moisture to be rapidly discharged, can reduce consumption of the ultrahigh-purity gas sample, saves time of detection of the ultrahigh-purity gas and increases work efficiency.

The invention relates to the field of moisture analysis and discloses a preparation method of a moisture test sample and a test method. The preparation method of the moisture test sample comprises steps as follows: a sample is added to a sample preparation bottle under a sample preparation condition, and the sample preparation bottle is sealed and serves as a test sample; alternatively, the sample preparation bottle is directly sealed under a sample preparation condition and serves as a blank sample, wherein the sample preparation condition comprises basically constant moisture content. The test method of the moisture test sample comprises steps as follows: the moisture detection sample is prepared with the preparation method, and the obtained moisture detection sample is subjected to moisture detection with a Karl-fischer potentiometric titration method. The preparation method of the moisture test sample and the test method have the advantages that the cost is reduced, the test data errors are reduced, the work efficiency is improved, and the service life of a moisture meter is prolonged.

A full-automatic dynamic tobacco moisture analysis climate chamber comprises an enclosed constant-temperature constant-humidity cabin, which is communicated with an air temperature and humidity processor to form an air circulation loop; a weighing platform is disposed inside the constant-temperature constant-humidity cabin, a sample delivery hanger is hung inside the constant-temperature constant-humidity cabin, at least one placement carrier is disposed below the sample delivery hanger, a sample vessel is placed on the placement carrier, the sample delivery hanger is further connected to a drive mechanism outside the constant-temperature constant-humidity cabin and the drive mechanism drives the sample delivery hanger to perform operations, to place the sample vessel on the weighing platform for weighing. The climate chamber, can minimize the test period, minimize intermediate links and human operation errors, and obtain a moisture content change rule of a tobacco sample as an important basis for performance evaluation of a tobacco humectant.

The invention discloses a crop spraying system. The system comprises a liquid supply module, a soil moisture analysis module and a crop culture module, wherein the liquid supply module comprises a pipeline unit, a nozzle unit and a water pond unit; the soil moisture analysis module comprises a standard soil moisture table unit, an actually measured soil moisture recording unit and a standard soil moisture and actually measured soil moisture comparison unit; and the crop culture module comprises a crop fertilization unit, a crop disease and pest prevention and control unit and a crop environment detection unit. By adopting the mode, the crop spraying system can be used for irrigating crops, spraying chemicals and applying nutrient liquid fertilizer so as to achieve multiple functions by the same pipeline. The crop spraying system is convenient to use and strong in practicality.

The invention relates to a local cold surface heating and heat preservation anti-condensation method for a switch cabinet and the switch cabinet employing the local cold surface heating and heat preservation anti-condensation method. According to the method, a cold surface, namely the surface on which condensation is easily generated at a relatively low temperature, of the switch cabinet is obtained through heat and moisture analysis; a heater is placed at the position, close to the cold surface, in a cabinet body of the switch cabinet to heat the cold surface; a thermal insulation material layer is arranged on the outer surface of the cold surface to reduce heat exchange of the cold surface and an external environment; and the temperature of the cold surface is further improved. Through a local heating and heat preservation technology on the switch cabinet, prevention and treatment are carried out aiming at the position at which the condensation is easily generated in the cabinet; the condensation phenomenon in the cabinet can be effectively and clearly treated; the adopted thermal insulation material is relatively low in cost; extra power consumption is not needed; the power of the heater can be reduced by increasing the thermal insulation material; and the cost is further reduced.

The invention discloses a method for preparing propargyl alcohol from 1,4-butynediol. The method comprises the steps: carrying out distillation concentration on a 1,4-butynediol BYD aqueous solution by using a rotary evaporator, starting a vacuum pump at a certain temperature, gradually increasing the vacuum degree until a distillate accounts for 40% or above of the undistilled BYD aqueous solution and a liquid in a kettle is not boiled, stopping a rotary evaporation device, and taking out BYD for later use; and adding the refined BYD, a solvent and a catalyst according to a proportion, carrying out heating to a certain temperature, then, starting to time, controlling the temperature constant, carrying out a reaction for a period of time, carrying out water analysis and chromatographic analysis on a distilled product, calculating the yield and concentration of propargyl alcohol, and keeping the intermittent reaction period at 4h. By using the method, potential safety hazards existing in co-production of BYD and propargyl alcohol in a high-pressure acetylene system are overcome, and the relevant operation expense is reduced.

The invention discloses a breaking-dedusting-clearing device for an online grain-moisture measuring instrument. The breaking-dedusting-clearing device comprises a breaking box and a clearing box, wherein the breaking box is fixedly connected with the clearing box; a resistance-type moisture analyzer is fixedly arranged on the clearing box; one side of the resistance-type moisture analyzer, separated from the clearing box, is provided with a liquid-crystal display screen; the breaking box is fixedly arranged on a lifter; an extruding roll is arranged in a detecting chamber and is provided withan extruding-roll clearing cover; one end of the extruding roll, separated from the detecting chamber, is positioned in an air drying pipe; the air drying pipe is communicated with a cyclone clearingring; one end of the air drying pipe, separated from the cyclone clearing ring, is communicated with an air blower. The breaking-dedusting-clearing device disclosed by the invention has the beneficialeffects that straws and dust mixed in grains can be effectively separated by the air blower, and fruit pulp on a measuring roll can be air-dried, so that slightly-high moisture measuring value causedby accumulation of the fruit pulp can be prevented; simultaneously, the grains also can be pre-broken, so that the normal use of the measuring roll is effectively guaranteed and the accuracy of measurement is improved simultaneously.

The invention belongs to the field of electrocatalytic moisture analysis oxygen, in particular relates to a preparation method and application of an amorphous cobalt borate nanorod efficient oxygen evolution electrocatalyst, and aims to solve the problems of high price and the like of a prior noble metal electrocatalytic oxygen evolution catalyst. Low-cost water-soluble cobalt salt and sodium tetraborate decahydrate are used as precursor reactants; a hydrothermal method is adopted to control the heating temperature and the reaction time; the obtained precipitate are centrifugally washed and freeze-dried to obtain the amorphous cobalt borate nanorod efficient oxygen evolution electrocatalyst. The preparation method has the advantages of low cost, environmental protection, simple operation and convenient post-treatment of the product, the diameter and length of the nanorod can be easily regulated and controled. Meanwhile, the amorphous cobalt borate nanorod efficient oxygen evolution electrocatalyst has the advantages of low initial over potential, low Tafel slope, high stability and the like.

A method for analyzing moisture content in an analyzer. In one embodiment a sample is introduced into an analyzer and an initial weight is obtained. The sample is then fortified where it is allowed to pick-up moisture. The temperature of the analyzer is increased and an initial fortified point is obtained wherein the sample has returned to its initial weight. Thereafter the analyzer obtains the final moisture content of the sample at a test finish time. In one embodiment satellite analyzers are biased against a standard analyzer so that more uniform results are obtained.

The invention discloses a moisture analysis method in segmented drying, which comprises the following steps of fitting and calculating the drying time and the moisture ratio of the material when the material to be dried is dried at constant temperature and constant speed under different drying conditions with a plurality of drying kinetic models, thereby determining an optimal drying kinetic model; the drying time and the moisture ratio of the material to be dried are calculated according to the optimum drying kinetic model. Fitting the different drying conditions with the drying constants inthe optimal drying kinetic model, thereby determining a functional equation between the drying conditions and the drying constants; The number of drying stages, drying time and drying conditions of each drying stage are selected, and then the optimum drying kinetic model and the drying constant equation are substituted to obtain the moisture change of the material to be dried in the segmented drying. The embodiment of the invention can meet the requirement of analysis and detection of complex moisture change in the segmented drying process, is favorable for designing, optimizing the segmenteddrying process, and improving the product quality and production energy efficiency of the segmented drying.

The invention relates to a tobacco sheet moisture analysis slitting device and belongs to the technical field of process quality detection analysis slitting in the tobacco industry. The tobacco sheetmoisture analysis slitting device comprises a sliding rod (1), a hand lifting cover (2), a telescopic cutter (3), a cutter face (5) and a slitting table (6); the cutter face (5) is arranged at the middle part of the slitting table (6); the sliding rod (1) is arranged at the edge part of the slitting table (6); the telescopic cutter (3) is arranged on the sliding rod (1); and the hand lifting cover(2) is arranged on the telescopic cutter (3). According to the invention, by the trisection flow processing process, a breakage rate of tobacco leaves is reduced, the tobacco leaves are equally divided, energy is saved, and tobacco sheet moisture analysis analysis detection data is rapidly and accurately fed back so as to achieve the process standard and improve working efficiency.

The invention discloses an LSTM-based continuous real-time prediction method for the moisture of ambient temperature and humidity in a tobacco shred process. In order to guarantee the stability of theoutlet moisture of perfumed tobacco shreds in a multi-batch and continuous production environment, the LSTM-based deep learning iterative prediction method is realized, the influence of moisture analysis and the prediction of environmental temperature and humidity in the tobacco shred process on the outlet moisture of the perfumed tobacco shreds is analyzed, and a real-time prediction model of the outlet moisture of the perfumed tobacco shreds is established; the influence trend of the predicted environmental temperature and humidity on the water yield of the perfumed tobacco shreds is obtained through model solving, and finally, the inspection is performed by adopting a method of comparing a model prediction value with an actual measurement value. According to the method, the predictionof the cut tobacco moisture can be realized, so that the prediction readiness and efficiency are improved.