124 results about "Temperature recording" patented technology

The invention discloses a solid state disk data reading method and system, a storage medium and a program product, and the method comprises the steps: calculating a temperature change rate and a temperature accumulation effect coefficient of a to-be-read data block according to a current temperature value and a historical temperature record; dividing the physical page address into a plurality of subintervals, and determining a loss level; calculating an initial reading voltage threshold value; compensating the initial reading voltage threshold value to obtain a target reading voltage threshold value; performing parallel reading on the to-be-read data block by adopting the target reading voltage threshold value to obtain original reading data; performing crosstalk correction on the original read data to obtain corrected data; when the reliability verification result of the corrected data of any subinterval is lower than a preset threshold value, error correction processing is carried out; and updating the loss level of the sub-interval according to the verification result of the reliability verification, and re-dividing the sub-interval of the data block to be read. The data reading delay is reduced, and the performance of the solid state disk in a scene of frequently reading small files is improved.

The invention belongs to the technical field of concrete wireless temperature measurement, and provides a mass concrete wireless temperature measurement system, which comprises a temperature monitoring module, an alarm judgment module, a data analysis module and a record storage module, the method comprises the following steps: acquiring temperature detection data of mass concrete in real time through a plurality of temperature sensors uniformly embedded in the mass concrete and a wireless transmission chip, and analyzing the temperature detection data in combination with system time to obtain a temperature change abnormal value; judging whether the overall temperature change of the mass concrete at the moment is abnormal or not according to the temperature change abnormal value, obtaining temperature data in the detection period, analyzing the temperature data to obtain the temperature abnormal value of the detection point in the detection period, and obtaining the temperature of the mass concrete through data analysis based on the temperature abnormal value of the detection point. The temperature recording report is generated for the mass concrete and stored, overall temperature detection and analysis of the mass concrete are facilitated, constructors can better master the performance state of the concrete, and the quality of the concrete is ensured.

The invention discloses a numerical control lathe processing system and method based on precision correction, and relates to the technical field of numerical control machine tool management. A plurality of temperature sensors are arranged on a lathe, temperature records of a plurality of working areas of the lathe are correspondingly collected, numerical value sampling is conducted on the temperature records, and the predicted temperature of each working area is calculated; carrying out weighted calculation on the predicted temperature to obtain a machining reference temperature of the lathe, obtaining a thermal expansion coefficient of the part, correcting the measured size of the part through the thermal expansion coefficient and the machining reference temperature, monitoring the temperature of the working area in the next time period after the size of the part is corrected, and obtaining predicted data of the temperature. And the size change of the part is reasonably estimated and fed back to a lathe control system to pre-adjust the tool feeding amount, so that the problem that the machining precision is reduced due to the size change of the part in the machining process is solved.

The present invention relates to a power electrical system (100) for an industrial vehicle (10), comprising at least one electrical power source (106), at least one electrical load (102, 104), a power circuit (108) connecting the at least one electrical power source (106) and the at least one electrical load (102, 104), at least one temperature sensor (112) assigned to the power circuit (108) at a measuring point and configured to determine a temperature at the measuring point, and a control unit (110) operationally coupled to the at least one temperature sensor (112) and configured to initiate at least one predetermined action when a predetermined threshold temperature is exceeded. The invention further relates to an industrial vehicle with such a power electrical system and a method for operating such a system.

The utility model belongs to the technical field of metallurgical coking, and particularly relates to an electric heating modified pitch preparation device, which is a single-kettle system, and is characterized in that a material electric heater is connected onto a feeding pipe of a reaction kettle, an outer heat-preservation electric heater is arranged in an outer-side heat-preservation layer of the reaction kettle, a first temperature recording control instrument is arranged at a feeding hole of the reaction kettle, and a second temperature recording control instrument is arranged at a feeding hole of the reaction kettle. The material electric heater and the first temperature recording control instrument are in interlocking control, and a second temperature recording control instrument is arranged on the discharge pipe of the reaction kettle and is in interlocking control with the external thermal insulation electric heater. The utility model has the advantages that: 1) an electric heating process is used for replacing a tubular furnace heating process, and the reaction kettle body also adopts electric heating for heat preservation, so that an external circulation heating pipeline of the reaction kettle for heating by using a tubular furnace is cancelled, and one third of heat supply energy consumption of the reaction kettle is reduced; and 2) the whole modified asphalt process flow is obviously simplified, the blank in the technical field of the industry is filled, and the method has great significance.

The invention discloses a temperature control method and system based on deep learning, and the method comprises the steps: 1, employing a deep neural network model, combining real-time data and historical temperature records, and predicting the temperature change in a phase change refrigeration system through regression analysis; and 2, the deep neural network model dynamically adjusts the working parameters of the phase change refrigeration system based on the real-time data. By integrating the deep learning technology and the existing overcharge charging gun phase change refrigeration system, an innovative solution is provided for improving the charging efficiency and safety of the electric vehicle, the adaptability and response speed of the phase change refrigeration system to environmental changes are enhanced by introducing the deep learning algorithm, and the charging efficiency and safety of the electric vehicle are improved. In addition, energy consumption and operation cost can be reduced through implementation of the electric vehicle charging system, and therefore a more sustainable and environment-friendly solution is provided for charging of the electric vehicle.

The present invention discloses a geothermal measuring device and a construction method thereof. The geothermal measuring device is installed in a borehole, the borehole is an inclined structure, and the height of the starting end of the borehole is lower than the height of its ending end. The geothermal measuring device comprises: a grouting pipe, which is adapted in the borehole, and defines an accommodating cavity therein. The grouting pipe is provided with a slurry inlet port and a grouting hole group connected with the accommodating cavity. The slurry inlet port is arranged near the starting end, and the grouting hole group is arranged at intervals along the extension direction of the grouting pipe, wherein each grouting hole group is covered and sealed by a diaphragm, and the pressure bearing capacity of the diaphragm gradually decreases from the starting end to the ending end; a partition, which is fixed on the outer peripheral wall of the grouting pipe along the circumferential direction of the grouting pipe, and the partition is arranged at intervals along the extension direction of the grouting pipe; a temperature sensor, which is fixedly installed on the outer wall of the grouting pipe and arranged at intervals along the extension direction of the grouting pipe. The temperature sensor is guided to the starting end of the borehole through a data line and coupled to a temperature recorder.

This invention discloses a cultivation and monitoring device for low-temperature cold-resistant growth of rice, relating to the field of rice cultivation technology. The invention includes a three-layer frame for mounting the equipment; a supplementary lighting system is installed on the upper layer of the frame; a rice cultivation trough is installed on the middle layer; and a water tank and a chiller are installed on the lower layer. The water tank and the chiller's inlet are connected via a first pipe. The rice cultivation trough is internally divided into a cold water inlet chamber, a cold water cultivation chamber, and a cold water return chamber. Water level and flow are controlled by inlet and outlet weirs. The device is also equipped with adjustable weirs to flexibly adjust the water level to meet the needs of different rice growth stages. Simultaneously, a video recording device and a temperature recording device are installed to record the entire rice growth process and monitor water temperature in real time, providing researchers with accurate experimental data. Furthermore, the device includes a room-temperature cultivation chamber as a control, which helps evaluate the low-temperature growth ability of genetically modified or hybridized rice seeds.

The invention discloses a constant-temperature soldering furnace calibration device and method. The calibration device comprises a multi-channel temperature recorder and a plurality of temperature sensors arranged in a furnace groove. The cold end of each temperature sensor is connected with the multi-channel temperature recorder; the number and the distribution positions of the temperature sensors are determined by the shape, the size and the tin melting amount of the furnace groove. The multiple temperature sensors are arranged in the furnace groove at the same time, multi-point simultaneous measurement of the furnace temperature is achieved, and the temperature measurement efficiency is greatly improved; a multi-point simultaneous measurement mode is adopted, a temperature sensor does not need to be moved, and the problem that temperature uniformity of soldering tin is affected by movement of a temperature measurement probe during single-point temperature measurement is avoided; by means of the constant-temperature soldering furnace calibration device, periodical calibration can be conducted before the soldering furnace is used, synchronous monitoring can be conducted when the soldering furnace is used, the local temperature sudden change situation can be found in time, and welding quality reduction or device damage is avoided.

The invention relates to the technical field of data management, in particular to a digital supervision and traceability management method and system for pressure-bearing special equipment, and the method comprises the steps: building a multi-dimensional real-time operation time sequence of the special equipment through collecting a surface temperature signal of a pressure-bearing container body and a pressure signal at an interface; the time sequence is mapped and compared with a standard pilot run time sequence, a grid path difference matrix is further constructed, and comprehensive form difference information corresponding to continuous grid paths is extracted, so that the dynamic quantitative supervision of the running state of the pressure-bearing special equipment is realized; and the effect of converting the real-time operation deviation from a discrete monitoring value to a comparable and determinable monitoring result is achieved. According to the method, material thickness recording in the manufacturing stage, welding temperature recording in the mounting stage and environment humidity recording in the using stage are introduced, and through processing from abnormal operation recognition to life cycle reason tracing of the pressure-bearing special equipment is achieved.

The invention relates to the technical field of ammunition cook-off tests, and particularly discloses a rapid cook-off test device and method.The device comprises a supporting frame, an oil pool, a lifting appliance, a thermocouple, a speed measuring target, a verification plate, a pressure sensor, a video recording device, a temperature recorder and the like. The oil pool is arranged below the supporting frame, the hanger hangs the test bomb above the oil pool, the thermocouple surrounds the test bomb, the speed measuring target and the verification plate are arranged in front of and behind the test bomb respectively, and the pressure sensor is arranged on the side face. The method comprises the steps of inspection before test, equipment installation, verification plate arrangement, sensor installation, equipment debugging, test bomb fixing, water injection and oil injection, remote ignition, observation and recording, field investigation, photographing and recording, unreacted test bomb destroying and the like. The rapid cook-off environment can be accurately simulated, the temperature change of the test bomb can be comprehensively monitored, key parameters can be comprehensively and accurately measured, reliable data can be provided for test bomb performance evaluation, and the test is safe and reliable.

The invention discloses a heat conduction disc, a combined measurement device and a combined measurement method for combined measurement of shear stress and heat transfer performance of a high-viscosity fluid. The heat conduction disc is provided with temperature measurement equipment holes which are distributed in an axial symmetry manner and are used for mounting temperature measurement equipment; the combined measuring device comprises a heat conduction disc, a torque sensor, a torque sensor control system, a distance sensor, a distance sensor control system, a mechanical lifting mechanism, a thermocouple, a temperature recording system, a heating film, a temperature controller and a support, and the distance sensor can feed back the height position of a lifting platform of the mechanical lifting mechanism in real time. A heating film and a heat conduction disc embedded with a thermocouple are sequentially arranged on a lifting platform of the mechanical lifting mechanism in a stacked mode, the thermocouple embedded in a hole of the temperature measuring device upwards extends out of the heat conduction disc, and a torque sensor suspended on a support is arranged over the heat conduction disc. The combined measuring device provided by the invention can be used for carrying out combined testing on the shear stress and the heat transfer coefficient of the high-viscosity fluid.

The invention provides a dry quenching system non-working condition operation flue gas waste heat recycling method, which belongs to the technical field of flue gas waste heat recycling, and comprises a first branch pipe, a water mixing pump, an electric control valve, a first gate valve, a second gate valve and a temperature recording interlocking alarm. The method comprises the following steps: 1, when the temperature of deoxygenated water supply and return water is not higher than 95 DEG C and the temperature of a dry quenching body inlet flue gas pipeline is lower than 115 DEG C, delaying for 5 seconds and interlocking a water mixing pump, and when the water mixing pump operates and the temperature of the dry quenching body inlet flue gas is lower than 100 DEG C, setting the opening degree of an electric control valve to be 100%; 2, when the water mixing pump operates and the temperature of flue gas at the inlet of the dry quenching body is lower than 108 DEG C and not lower than 100 DEG C, the opening degree of the electric control valve is given to be 80%; 3, when an operation signal of the water mixing pump is received, the electric control valve is interlocked and opened by delaying for 2 seconds, and the opening degree of the electric control valve is given to be 50%; and 4, when the temperature of the deoxygenated water supply and return water is as high as 95 DEG C, delaying for 5 seconds to interlock and close the water mixing pump, and delaying for 2 seconds to interlock and close the electric control valve after the operation signal of the water mixing pump disappears.

To provide a watching system capable of reducing the burdens of both a caregiver and a care receiver and obtaining enough information.SOLUTION: A watching system S according to one aspect of the present invention comprises a microwave measuring device M which transmits a microwave to a watching object O and receives a reflection wave of the microwave, a body temperature measuring device T which measures a body temperature of the watching object O, and an information processing device C which processes outputs from the microwave measuring device and the body temperature measuring device. A watching program and a watching method according to another aspect of the present invention include a biological information recording step of recording biological information data containing any of respiration rate data and heart rate data of a person to be watched in a computer on the basis of the output data of the microwave measuring device and a body temperature recording step of recording body temperature data of the person to be watched, and executes watching.SELECTED DRAWING: Figure 1

The invention provides a lubricating grease dropping point detection method, device and system, a medium and computer equipment. The lubricating grease dropping point detection method comprises the following steps: S1, acquiring a background image of an area below a grease cup; s2, continuously capturing an image of an area below the fat cup; s3, gray processing is carried out on a current image in the continuously captured images of the area below the fat cup; s4, boundary detection is carried out on the current image after gray processing; s5, calculating the difference between the bottom position of the boundary of the current image after boundary detection and the background image; s6, comparing whether the difference is greater than a threshold value or not, if not, turning to the step S3, and if yes, carrying out the next step; and S7, storing the temperature value measured by the temperature recording device. The problem that an existing dropping point tester is inconvenient to determine the dropping point is solved.

The utility model discloses blood transport case, the box body inner wall has the convex rib, and the channel of air flow is formed between rib and rib, and the blood storage bag is divided and is placed in a plurality of blood storage basket, and the gap of air flow is also had through the setting of shock pad between each blood storage basket, so that the air in the box body cavity can flow, and the temperature is balanced. The ice row is filled in the periphery of blood storage basket, the outside temperature is isolated through the ice row, has certain temperature -controlling ability, can make the temperature in the box reach the requirement fast, divides and packs the blood bag, reduces the collision damage between blood bags due to the road condition bump in the transportation process, and each blood storage basket is buffered and is damped through the shock pad of setting, further avoids the damage of blood bag. The blood transport case is equipped with temperature monitoring system, can alarm after the storage temperature in the box is overproof, and can recheck temperature record before use.

The application relates to a temperature recording device for a cold chain and a temperature recording method thereof. The temperature recording device can be applied to the temperature recording of the fields of food, medicines and the like which need to be kept at low temperature for production, storage and transportation. The temperature recording device comprises a base, a transparent cover, a spiral bimetallic sheet, a central shaft, a shaft sleeve, a temperature pointer, a scale dial and a rotating dial. A one-way hook is arranged on the temperature pointer, a recording arrow and a clamping groove are arranged on the rotating dial, the central shaft is fixed in the center of the base, the shaft sleeve is sleeved on the central shaft and can rotate, the outer end of the spiral bimetallic sheet is connected to the inner wall of the base, the inner end of the spiral bimetallic sheet is connected to the shaft sleeve, the spiral bimetallic sheet is stretched and bent to drive the shaft sleeve to rotate when the temperature changes, the rotating dial is covered above the scale dial and can rotate, the shaft sleeve penetrates through the scale dial and the rotating dial, the lower end of the shaft sleeve is connected to the spiral bimetallic sheet, the upper end of the shaft sleeve is connected to the temperature pointer, the shaft sleeve drives the temperature pointer to rotate, and the transparent cover is covered on the upper portion of the base.

The telescopic portable dry land greenhouse gas collecting box comprises a top plate, a first circular ring, a second circular ring and a TPU material wrapping cover, the top plate is located over the first circular ring, and the TPU material wrapping cover covers the upper surface of the top plate; the peripheral edge of the TPU material wrapping cover naturally falls down and is connected to the upper surface of the first circular ring; a plurality of manual telescopic rods are arranged between the upper surface of the first circular ring and the lower surface of the top plate; the second circular ring is installed on the lower surface of the first circular ring, and a plurality of inserting columns are vertically arranged on the lower surface of the second circular ring. According to the utility model, the fan works, so that gas in the TPU material wrapping cover can be uniformly mixed, and the temperature recorder can record the temperature in the wrapping cover; after sampling is completed, the manual telescopic rod can be shortened, the top plate is moved downwards, and the size of the whole collecting box is reduced.

The invention relates to the technical field of product testing, and discloses a wearable equipment endurance testing device and method, and the device comprises a bionic model which is provided with a wearing part; the temperature acquisition module comprises a temperature sensor arranged in a fitting area of the tested wearable product and the bionic model, and a temperature recording device connected with the temperature sensor; the running state detection module is used for acquiring the current running state and the state running signal of the detected wearable product; and the timing component is connected with the running state detection module, and is used for starting timing when receiving the state running signal representing running start and stopping timing when receiving the state running signal representing running stop, so that the timing time recorded by the timing component is used as the running duration time of the detected wearable product. By arranging the simulation model with the wearing part, the temperature rise change of the tested wearing product in the testing process is closer to a real wearing situation, and the credibility, comparability and engineering reference value of temperature rise test data are improved.

The present invention relates to a device for visually registering an excess temperature, i.e., a device for registering an excess temperature exceeding at least one threshold, whose operating principle is to change the microstructure of a heat-sensitive material at a predetermined temperature threshold with an irreversible visual effect, and to a variant of the manufacturing method of this device. The device for visually registering excess temperatures exceeding at least one threshold has a layer structure including: a substrate opaque to at least a portion of visible light, the front surface of which is inscribed with an indication of at least one numerical threshold temperature; at least one heat-sensitive material opaque to at least a portion of visible light, applied to a separate portion of the substrate, the heat-sensitive material having a microstructure containing solid organic particles and voids filled with a gas phase; and a transparent protective layer partially or completely covering the front surface of the device. In this case, the device has the ability to irreversibly change its appearance upon reaching at least one threshold temperature indicated thereon, with the microstructure of the corresponding heat-sensitive material being destroyed, the solid organic particles fusing, the proportion of voids decreasing, and an increase in transparency accompanied by the appearance of the base color. Also disclosed are embodiments of a method for manufacturing a device for visually detecting temperatures exceeding at least one threshold. The inventions provide improved reliability and reliability of the visual registration of the fact of a temperature exceeding at least one threshold, improved triggering speed of the heat-sensitive material, including the impossibility of returning the heat-sensitive material to its initial state, short-term peak loads of the device's control elements or conditions for emergency operation modes, as well as improved safety of operation of both the controlled device and the device itself.

The invention discloses a temperature detection device and method. The device captures an image of an object and a thermal image. The device determines a first contour of the object in the image based on the image. The device superimposes the first profile in the image to the thermal image to produce a second profile in the thermal image. The device generates a temperature record of the object based on a plurality of temperature values of the thermal image within the second profile. According to the temperature detection technology provided by the invention, the image and the thermal image are combined, so that the position of the object can be more accurately judged, and the temperature is recorded according to the position.

The invention relates to medical experiment equipment and discloses a body temperature maintaining device which comprises a constant-temperature water bath kettle, a containing bottle, a circulating water pump, a water-cooling heat dissipation plate, a heat conduction pipe, a backflow pipe, a digital anal thermometer and a temperature recorder. The constant-temperature water bath kettle comprises a heater, a water tank and a ferrule, the heater is used for heating water bath liquid to a target temperature, and the ferrule is mounted at the top of the water tank; the containing bottle is clamped into the ferrule, so that the bottom of the containing bottle is in contact with the water bath liquid, and the containing bottle is used for containing heat conduction liquid; the circulating water pump is arranged in the containing bottle and comprises a water inlet and a water outlet, and the circulating water pump sucks the heat conduction liquid from the containing bottle and discharges the heat conduction liquid from the water outlet; the water-cooling heat dissipation plate comprises a heat exchange opening, a backflow opening and an internal pipeline, and the internal pipeline is communicated with the outside through the heat exchange opening and the backflow opening. The heat conduction pipe is used for guiding heat conduction liquid into the internal pipeline; the backflow pipe is used for enabling the heat conduction liquid in the internal pipeline to flow back to the containing bottle; and the temperature recorder is connected with the digital anal thermometer.

The application discloses a kind of electronic detonator sealing test tubes under the condition of temperature and pressure coupling and sealing performance detection test method, its method includes the following steps: a certain amount of chemical reagent is loaded in empty tube shell, to ensure that the gas production after thermal decomposition reaches target pressure by internal pressure;Power positive line, negative line and signal line are welded on PCB board, then loaded into empty tube shell, injection plug card is blocked to empty tube shell, to obtain test tube;Power positive line and negative line are connected with power supply, and signal line and negative line are connected with signal amplifier and oscilloscope;Test tube is placed in high-low temperature chamber, heated to decomposition temperature, observe the internal pressure change of test tube, keep high temperature until target pressure is reached;Lower to preset low temperature, record pressure change curve and analyze.The application considers the influence of environmental temperature change on the sealing performance of electronic detonator, realizes real-time quantitative analysis of sealing performance, effectively improves the test efficiency of electronic detonator sealing performance detection.

Protruding ribs are arranged on the inner wall of a box body, channels allowing air to circulate sometimes are formed between the ribs, blood storage bags are placed in a plurality of blood storage baskets respectively, gaps allowing air to circulate are formed between the blood storage baskets through damping cushion blocks, and therefore air in an inner cavity of the box body can circulate, and the temperature is balanced. The ice rafts are filled on the peripheries of the blood storage baskets, the outside temperature is isolated through the ice rafts, certain temperature control capacity is achieved, the temperature in the box can rapidly meet the requirement, the blood bags are subpackaged, collision damage among the blood bags caused by bumpy road conditions in the transportation process is reduced, the blood storage baskets are buffered and damped through the damping cushion blocks, and the service life of the blood storage baskets is prolonged. The damage to the blood bag is further avoided. A temperature monitoring system is arranged on the blood transport box, an alarm can be given after the storage temperature in the box exceeds the standard, and temperature records can be rechecked before the blood transport box is used.

The invention relates to the technical field of cold chain transportation, and discloses a temperature tracing and recording system in cold chain transportation based on the Internet of Things and a temperature recording method of the temperature tracing and recording system in cold chain transportation. The data transmission module is used for transmitting the temperature data acquired by the temperature acquisition module to the data storage and management module; the data analysis and early warning module is used for analyzing the temperature data and giving out early warning when the temperature is abnormal; the temperature tracing module is used for tracing temperature data in the cold chain transportation process, and the temperature tracing recording system in the cold chain transportation based on the Internet of Things and the temperature recording method thereof improve the temperature monitoring accuracy: through a high-precision temperature sensor and a piecewise linear calibration formula, the temperature measurement accuracy is greatly improved; a multi-sensor space grid distribution acquisition and improved data analysis model can comprehensively and accurately reflect the temperature field condition and the change trend in the cold chain transportation equipment.

1. Name of the product under this design: Temperature Recorder (RD‑10C). 2. Purpose of this design product: used to monitor and record the temperature of food, medicines, chemicals, etc. during storage and transportation. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The application discloses a constant-temperature soldering furnace calibration device and method, the calibration device comprises a multichannel temperature recorder and a plurality of temperature sensors arranged in a furnace tank; the cold end of each temperature sensor is connected with the multichannel temperature recorder; the number and distribution position of the temperature sensors are determined by the shape, size and / or molten solder amount of the furnace tank. The application simultaneously arranges a plurality of temperature sensors in the furnace tank, realizes multi-point simultaneous measurement of the furnace temperature, and greatly improves the temperature measurement efficiency; the multi-point simultaneous measurement mode is adopted, the temperature sensor does not need to be moved, and the problem that the movement of a temperature measurement probe affects the uniformity of soldering temperature when single-point temperature measurement is performed is avoided; the constant-temperature soldering furnace calibration device can be used for periodic calibration before the soldering furnace is used and can be used for synchronous monitoring when the soldering furnace is used, local temperature mutation can be found in time, and the decline of soldering quality or the damage of a device is avoided.

The application discloses a kind of thermal desorption treatment contaminated soil thermal conductivity test system and test method, test system includes test cavity, heating furnace, gas pressure control system and soil sample thermal conductivity test system, gas pressure control system includes gas pressure sensor, gas pressure control valve, nitrogen source, tail gas processor and vacuum pump, soil sample thermal conductivity test system includes double probe, wire, direct current power supply, multichannel temperature recorder and thermal conductivity calculation system, the double probe insertion to be measured soil sample and place in test cavity, the application can operate under high temperature environment, simultaneously, two different test methods are used to calculate two thermal conductivities for the same to-be-tested soil sample respectively, and the mean value is obtained by comparison and verification, effectively save the time of parallel test under high temperature environment, reduce the experimental error of calculating thermal conductivity.

The utility model discloses a wireless temperature data logger relates to temperature data recording technical field, including protection box, and the inside limit of protection box is installed with temperature data logger body, and the upper end surface right side of temperature data logger body is provided with control panel, and the top of protection box is inserted with top cover, and the position of top cover is opened with operating mouth on control panel, and the inside limit of operating mouth is slidably installed with baffle, and the lower end surface of baffle is fixedly connected with soft hair brush, and soft hair brush is pasted with control panel, and the front and back both sides of top cover are all opened with dust removal hole, and dust removal hole is communicated with the inside of operating mouth. When baffle removes, through connecting plate drive gear plate synchronous movement, and gear plate is engaged with gear ring, and drives gear ring to rotate. Gear ring drives one way bearing to rotate, utilizes the characteristic of one way bearing, makes the rotation of shaft and fan leaf only one -way, and the dust of cleaning is discharged to the outside. Improve the cleaning efficiency, and ensure that control panel keeps clean.