30results about How to "Avoid inaccurate temperature measurement" patented technology

The invention relates to a heating control method of an electric kettle and an electric kettle for realizing the heating control method. By judging whether water is boiled according to whether time increment delta t corresponding to a raised unit value delta T of water temperature reaches the limit time increment delta t0 preset in a memory cell when water is heated for the first time, whether water is boiled can be accurately judged. Simultaneously, the invention also stores boiling temperature Tf detected during the boiling last time in the memory cell, as long as the real-time water temperature T reaches Tf when boiling next time, water is judged to be boiled, and the long-time judgment of water boiling is not required to be repeated, therefore, the boiling time is effectively saved. The method and the electric kettle can be used in areas with various sea level elevations, not only can accurately judge whether water is boiled to avoid potential safety hazards, such as heating without water, but also has the advantages of energy conservation and high temperature-controlling precision.

The invention discloses a combined type continuous casting blank surface temperature measurement method and instrument. The combined type continuous casting blank surface temperature measurement method is characterized by comprising the two links of temperature measurement without a reflector and measurement with a reflector, building the relationship between the effective emissivity of the target area of measurement with the reflector and the effective emissivity of the target area of measurement without the reflector according to the multi-reflection principle of the Devos theory, and working out the casting blank surface temperature by building a double-wave-length radiation energy equation set of measurement without the reflector and measurement with the reflector. The temperature measurement instrument comprises a reflector (3), a motor transmission mechanism (5), an infrared temperature measurement probe (2), a calculation and control system unit (4) and a cooling system (7). The combined type continuous casting blank surface temperature measurement method and instrument resolve the problem of inaccurate temperature measurement caused by nondeterminacy of the emissivity, are suitable for a continuous casting site with complex measurement conditions, and finally participate and realize automatic control over the continuous casting process. The temperature measurement instrument can obtain stable and reliable infrared radiation energy signals to guarantee that the finally worked out temperature is accurate.

Disclosed is a method for controlling the tempering process of a glass plate. In the heating process of a heating furnace, a monitoring unit monitors a working parameter of a heating element in real time, filters the working parameter of the heating element and then transmits the filtered working parameter of the heating element to a control unit, the control units compares the received working parameter of the heating element with a set threshold, when the working parameter of the heating element reaches the set threshold in the first change process after reaching the maximum or minimum, thecontrol unit sends an instruction to a driving mechanism, and the driving mechanism acts to directly feed the glass plate into the heating furnace or delays to feed the glass plate into the heating furnace. The method changes the traditional control method based on time, and can controls the heating process of the heating furnace more scientifically and accurately.

The embodiment of the invention relates to a body temperature automatic measurement method and device as well as a mobile terminal. The method comprises the following steps: acquiring distance data acquired by a distance sensor mounted in the mobile terminal; based on the distance data, determining a distance between the head of a user and the mobile terminal; judging whether the distance reachesa preset distance threshold value for automatically starting a body temperature measuring function or not; and if yes, automatically starting the body temperature measuring function, and performing body temperature measurement based on temperature data acquired by a temperature sensor mounted in the mobile terminal. The embodiment of the invention detects the distance between the head of the userand the mobile terminal by virtue of the distance sensor and can automatically start the body temperature measuring function when the detected distance reaches the preset distance threshold value forautomatically starting the body temperature measuring function; and body temperature measurement automation is realized, and the user does not need to initiatively start the body temperature measuringfunction, thus solving the problem of inaccurate body temperature measurement caused by that the head of the user can not be close to the mobile terminal in time, and improving user experience.

The invention relates to a temperature monitor system for soldering a longitudinal joint of a cylinder of a pressure container. According to the temperature monitor system, at least four temperature-detection probes are adsorbed to one side which is 50mm from the groove of the cylinder and is close to a welding machine, and are respectively connected with terminal collection and control equipment by virtue of transmitters; the terminal collection and control equipment is connected with the power supply of the welding machine by virtue of a three-phase solid-state relay. The temperature-detection probes are directly adsorbed to the cylinder by virtue of magnets, are convenient to assemble, and can be used for avoiding the situation of inaccurate temperature detection due to the fact that welding flux is adsorbed to the surface of the cylinder; reasonable operation of field personnel can be guaranteed by means of the real-time display function and signal light promoting function of the terminal collection and control equipment, and the production efficiency can be improved; the whole system can be used for in-time accurately recording and saving temperature information and time information of pre-heating, interlamination and after-heating in the process of welding the longitudinal joint of the cylinder of the pressure container, provides basis to coherence and traceability of welding quality, and has a great promoting effect for digital production of the whole manufacture industry.

A high-temperature vacuum sintering furnace with an automatic thermocouple plugging and unplugging device comprises a furnace body and the automatic thermocouple plugging and unplugging device arranged on the furnace body and located on an upper flange of the furnace body. The automatic thermocouple plugging and unplugging device comprises a connection flange, a supporting column, a support, a cylinder, a cylinder rod, a connection frame, a clamping block and a thermocouple. By means of the automatic thermocouple plugging and unplugging device, the problems that due to manual operation, the thermocouple is not plugged in place, and temperature measurement is inaccurate, or the thermocouple can not be unplugged in place, so that the thermocouple is damaged by a high temperature thermal field are solved. Moreover, the condition that the thermocouple is mechanically damaged when being manually plugged and unplugged is avoided.

The invention relates to an apparatus for measuring the Seebeck coefficient of a material by a contrast method. The device comprises a sample table, a heating power supply and a data acquisition device. The sample table comprises a jig, the jig comprises a lower jig and an upper jig, samples comprise a standard sample and a test sample, the standard sample and the test sample are clamped between the lower jig and the upper jig, and a heating rod is installed in the lower jig. By comparing the test sample with the standard sample, the Seebeck coefficient of the material is measured indirectly,compared with direct measurement, the problem of inaccurate temperature measurement at both ends of the sample is avoided, inaccurate temperature measurement is the biggest error source in Seebeck coefficient measurement, moreover, the system only needs to measure the potential difference between both ends of the test sample and the potential difference between both ends of the standard sample, the temperature on both sides of the samples does not need to be measured, which greatly reduces the signal leads in the system, makes the system more simple and effective, and the problem of thermocouple corrosion in the test process is avoided by using a graphite electrode to make contact with the samples.

The invention provides a bearing and a bearing outer ring integrated structure. The bearing comprises a bearing inner ring 12, the bearing outer ring integrated structure 11, a retainer 14 and a plurality of rolling balls 13, wherein the bearing inner ring 12 is a groove-shaped double-half ferrule with the gothic curvature, a circle of drawing groove is formed in the outer circumferential side ofthe bearing inner ring 12, and the retainer 14 is arranged on the outer circumference of the bearing inner ring 12; the bearing outer ring integrated structure 11 is arranged on the outer circumference of the retainer 14, the rolling balls 13 are arranged in an inner cavity formed by the bearing inner ring 12, the retainer 14 and the bearing outer ring integrated structure 11; the bearing outer ring integrated structure 11 comprises a bearing outer ring 110, a mounting edge 111, a first-section squirrel cage strip 112a, a second-section squirrel cage strip 112b, a supporting web 113, a boss 114 and a temperature measuring hole 115, wherein one end of the first-section squirrel cage strip 112a is connected to the bearing outer ring 110, and the other end of the first-section squirrel cage strip 112a is connected to the lower end of the supporting web 113; and one end of the second-section squirrel cage strip 112b is connected to the upper end of the supporting web 113.

The invention provides an electric cooking utensil. The electric cooking utensil comprises a pot, a pot cover and a temperature measuring assembly, wherein the pot is provided with a heating device; the pot is covered by the pot cover, the pot cover comprises an inner pot cover, a liner and a face cover which are arranged in the sequence from bottom to top, and an exhaust hole is arranged in the inner pot cover; the temperature measuring assembly is attachedto the inner pot cover for measuring the temperature of the inner pot cover; and the temperature measuring assembly comprises a protectionshell and a temperature sensor arranged in the protection shell, the inner pot cover is provided with a boss facing the face cover, the upper surface of the boss is higher than the exhaust hole, andthe protection shell is abutted against the boss of the face cover. With the technical scheme, the problem that in the prior art, soup or food accumulates near the temperature measuring assembly, consequently, the temperature measuring effect of the temperature measuring assembly is influenced is effectively solved.

The invention discloses an aluminum temperature measuring device of a high-temperature aluminum furnace for motor production. The aluminum temperature measuring device comprises a base, an aluminum furnace body and two brackets are fixedly mounted at the top of the base; the two supports are symmetrically arranged on the two sides of the aluminum furnace body, and the same transverse plate is fixedly installed on the two supports. The transverse plate is located over the aluminum furnace body, and a first mounting hole is formed in the top of the transverse plate. The device is reasonable in design and good in practicability, the height position and the horizontal position of the thermocouple can be conveniently adjusted, the temperature of molten aluminum at different depths and different positions can be measured, the surface of the thermocouple can be effectively cleaned and cooled in the process that the thermocouple is stored in the fixing groove; so that it can prevent the aluminum liquid from adhering to the surface of the thermocouple to influence the accuracy of the temperature measuring value, and also prevent the high temperature of the thermocouple from difficultly judging whether the temperature value of the aluminum liquid at the measuring position is accurate, so that the temperature measurement of the aluminum liquid is more accurate.

The embodiment of the invention provides a temperature measurement method and device, a storage medium and an electronic device.The method comprises the steps that a first image obtained by shooting a target area at a first moment through first equipment is obtained, the first image comprises depth information of a first object, and the first object is an object included in the target area; a second image obtained by shooting the target area at the first moment through second equipment is obtained, and the second image comprises the temperature of the first object; the temperature is modified based on the depth information to determine a target temperature of the first object. According to the invention, the problem of inaccurate temperature measurement in the prior art is solved, and the effect of accurate temperature measurement is achieved.

The invention relates to a method for controlling and heating an aerosol generating product by an aerosol generating device. The first resistance heating piece and the second resistance heating pieceare used for correspondingly detecting the temperature of each other, so that the temperature of the heat conductor can be accurately stabilized at the required temperature finally, the problem of inaccurate temperature measurement is solved, and the phenomenon of temperature drift of the heat conductor 1 is avoided.

The invention discloses a wide load temperature-increase-free switch-typed room temperature controller, comprising a temperature control mainboard, a lamp amphenol connector, a switch mainboard, an MCU chip, a wireless module, a low electrical detection module, a lamp switch module, and an electricity storage module; the controller is characterized by further comprising an on-state single fire power supply converting module, an off-state single fire power supply converting module, a control module, a magnetic holding relay working circuit, a full wave rectification circuit, a low-voltage serial access circuit, an LDO pressure reducing circuit, and a voltage detecting circuit. The controller takes power from a single-firing line to power a system, and has the function of a lamp switch; magnetic holding relay contacts are used as a switch tool, thereby solving the problem of temperature rise caused by an originally adopted silicon controlled device, achieving 0-300 W wide range loading of a heat consumer lamp, and completely replacing the lamp switch of a standard switch at the same time.

The invention relates to the field of seafood breeding technology. High-efficiency breeding equipment for seafood products comprises a culture pond, the top of which is fixedly provided with a cross frame; a controller is fixedly mounted on the upper right side of the outer front side of the culture pond; a water filter pipe is fixedly installed at the middle part of the inner bottom of the culture pond; the lower end of the water filter pipe is provided with filtration holes; the upper end of the water filter pipe is slidingly connected with a lantern ring. According to the high-efficiency breeding equipment for seafood products, water in the culture pond is pumped by the use of a water pump into a sedimentation tank through the filtration holes arranged at the lower end of the water filter pipe; and feces of marine animals inside the culture pond and other dirty materials enter the sedimentation tank through the water filtration holes; the controller starts an ultraviolet disinfection device to disinfect the inside of the sedimentation tank for a period of time, thus avoiding dirty materials from being stacked up therein and preventing marine animals in the culture pond from being affected. Thereby, the efficient seafood breeding method with high survival rate is achieved.

The invention is applicable to the technical field of wind tunnel tests, and provides a test model surface temperature correction method. The method comprises the following steps: acquiring a temperature value of each temperature measurement point, and if a temperature factor of the temperature measurement point is not less than a preset parameter, determining that the temperature measurement point is a failure temperature measurement point; and if the temperature factor of the temperature measurement point is smaller than the preset parameter, determining that the temperature measurement point is an effective temperature measurement point. The temperature factor is the stability degree of the temperature value of the temperature measurement point in a preset time length; taking the temperature value of the reference temperature measurement point as the correction temperature of the failure temperature measurement point; and the reference temperature measurement point is a temperature measurement point having the same relative distance with the failure temperature measurement point in the effective temperature measurement area, and the relative distance is the distance between a straight line where the temperature measurement point is located in the temperature measurement direction and a front edge line angular point. According to the test model surface temperature correction method, the surface temperature of the anti-icing and deicing component can be accurately measured, and the anti-icing and deicing test efficiency and accuracy are improved.

The invention relates to a heating control method of an electric kettle and an electric kettle for realizing the heating control method. By judging whether water is boiled according to whether time increment delta t corresponding to a raised unit value delta T of water temperature reaches the limit time increment delta t0 preset in a memory cell when water is heated for the first time, whether water is boiled can be accurately judged. Simultaneously, the invention also stores boiling temperature Tf detected during the boiling last time in the memory cell, as long as the real-time water temperature T reaches Tf when boiling next time, water is judged to be boiled, and the long-time judgment of water boiling is not required to be repeated, therefore, the boiling time is effectively saved. The method and the electric kettle can be used in areas with various sea level elevations, not only can accurately judge whether water is boiled to avoid potential safety hazards, such as heating without water, but also has the advantages of energy conservation and high temperature-controlling precision.

The invention discloses a vacuum indoor online motion monitoring temperature measuring device. The device comprises a loading trolley and a vacuum chamber. The center of a moving disc on the loading trolley is provided with a driving seat which is extended to the bottom of the loading trolley. The bottom surface of the driving seat is provided with a through groove, a thermocouple terminal and a connection block connected to the thermocouple terminal. The terminal is connected to a thermocouple. The transmission shaft of the bottom of the vacuum chamber is fixed with a driving block and a connection column. A spring and a spherical surface body are arranged in the connection column. The driving block is located in the through groove. The spherical surface body is embedded into a sphericalsurface groove on the connection block under the effect of the spring. The other end of the transmission shaft is sealed through a signal column and the signal column is provided with a conducting ring. The internal portion of the transmission shaft is connected to the conducting ring and the spring through a lead. A temperature control instrument is connected to the conducting ring through a carbon brush. The actual temperature of a product surface can be measured in real time, and simultaneously, the problem of an inaccurate temperature measurement caused by workpiece loading trolley movement is solved.

A temperature measuring device includes at least one first distance sensing unit and a second distance sensing unit for outputting first and second distance sensing signals, respectively; a temperature sensing unit for outputting a temperature sensing signal; a display unit for displaying the temperature measurement value; and a micro processing unit for receiving the first and the second distance sensing signals, and then determining, according to the first and the second distance sensing signals, whether the display unit displays the temperature measurement value calculated according to the temperature sensing signal. As a result, the at least two distance sensing units are used to prevent the temperature measuring device from executing the temperature measurement when the sensing unit of the thermometer obliquely points to a to-be-sensed part of a to-be-measured target to cause a large measurement angle.

The invention relates to a device for measuring the Seebeck coefficient of a material by a comparison method. The device includes a sample stage, a heating power source and a data acquisition device. The sample stage includes a clamp, the clamp includes a lower clamp and an upper clamp, and the sample includes a standard sample and a test sample. Both the standard sample and the test sample are clamped between the lower clamp and the upper clamp, and a heating rod is installed in the lower clamp. Through the comparison between the test sample and the standard sample, the method indirectly measures the Seebeck coefficient of the material, which is convenient for comparison with the direct measurement, and avoids the problem of inaccurate temperature measurement at both ends of the sample, which is the largest error source in the measurement of the Seebeck coefficient, and The system only needs to measure the potential difference between the two ends of the test sample and the standard sample, because there is no need to measure the temperature on both sides of the sample, which greatly reduces the signal leads in the system, making the system more simple and effective. The problem of thermocouple corrosion during testing.

The present invention is applicable to the technical field of wind tunnel test, and provides a method for correcting the surface temperature of a test model, comprising the following steps: obtaining the temperature value of each temperature measurement point, if the temperature factor of the temperature measurement point is not less than the preset parameter , the temperature measurement point is an invalid temperature measurement point; if the temperature factor of the temperature measurement point is less than the preset parameter, the temperature measurement point is an effective temperature measurement point; The degree of stability of the temperature value of the temperature measurement point: the temperature value of the reference temperature measurement point is used as the correction temperature of the failure temperature measurement point; the reference temperature measurement point is the relative distance from the failure temperature measurement point in the effective temperature measurement area For the same temperature measurement point, the relative distance is the distance between the temperature measurement point in the temperature measurement direction, the straight line where the temperature measurement direction is located, and the corner point of the leading edge line. The invention provides a method for correcting the surface temperature of a test model, which can accurately measure the surface temperature of an anti-icing component and improve the efficiency and accuracy of an anti-icing test.

The invention relates to a power device tube core temperature estimation method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a weak current driving signal output by a main controller; acquiring the position of a power device in a circuit according to the weak current driving signal; according to the position of the power device in the circuit, performing current sampling of the power device in the process from off to on; calculating the maximum current differential value of the current differential of the current sampling, and searching the temperature corresponding to the tube core of the power device from a pre-stored current differential thermometer according to the maximum current differential value; and when the temperature exceeds a preset range, executing a power device die temperature protection strategy. By adopting the method, the accuracy of calculating the tube core temperature of the power device can be improved.

The invention discloses an anti-dry-burning detecting method and detecting device of a gas stove and a gas stove. A corrected light source emits an infrared radiation pulse to the bottom of a pot; theinfrared radiation pulse is reflected by the bottom of the pot, a corrected infrared detector receives the pulse and the pulse is converted into an electric signal; the reflectivity and emissivity ofthe bottom of the pot are calculated; the corrected light source is turned off; an infrared temperature measuring detector receives infrared radiation energy emitted by the bottom of the pot and theinfrared radiation energy is converted into an electric signal, and the infrared radiation energy emitted by the pot bottom is obtained; the temperature of the pot bottom is calculated; whether a gasstove is in a dry burning state is determined based on the temperature of the pot bottom; and if so, a gas valve is turned off or alarming is performed. Therefore, when different pots are used, the bottom temperature of the pot is calculated based on the corresponding emissivity of the bottom of the pot, so that an accurate temperature value is obtained. A problem of inaccurate temperature measurement caused by the large emissivity difference of the pot bodies in the prior art is solved. The accuracy of the detected bottom temperature is improved and the accuracy of the anti-dry-burning control is enhanced.

The invention discloses an anti-vibration spiral protection sleeve comprising a flange, a protective sleeve body and a spiral flange. Bolt holes are distributed in the flange in a circumferential direction; a central hole is drilled at the center of the flange; and the protective sleeve body passes through the central hole of the flange. The protective sleeve body is formed by combination of a spiral-flange-free sleeve and a spiral flange sleeve; and the spiral flange is arranged on the outer wall of the spiral flange sleeve spirally. A central drilling hole is formed at the center of the protective sleeve body. According to the anti-vibration spiral protection sleeve based on the reasonable structural design, since vibration of the protective sleeve is mainly caused by the Karman vortex street formed by the medium flowing through the protective sleeve in the rear side, the spiral flange around the protective sleeve can cut off the flow to avoid the obvious Karman vortex street. Because of reduction of the amplitude of the scattered vortexes, vibration of the sleeve is avoided; and with the spiral flange arranged at the spiral protective sleeve, the area of the contact medium of the protective sleeve is increased and the thermal conduction efficiency is increased, so that the temperature measuring element in the protective sleeve can measure the temperature precisely and the thermal response time is shortened.

The invention discloses a wireless temperature measurement control system of a natural lustre finishing machine and a control method thereof. The wireless temperature measurement control system comprises a PLC controller, a touch screen and a wireless temperature measuring system, wherein the wireless temperature measuring system comprises a wireless temperature measuring rotor, a wireless temperature measuring stator and a temperature transmitter. The wireless temperature measuring rotor faces the wireless temperature measuring stator, and the real-time temperature signals of an ironing roller are transmitted through wireless radio frequency power supply and carrier communication. The wireless temperature measuring stator and the transmitter are connected through a coaxial cable to transmit temperature data, and the transmitter is used for converting the main heating temperature signals and the auxiliary heating temperature signals into 4-20 mA current signals which are input into anintelligent temperature controller, and the intelligent temperature controller and the PLC controller are connected through an RS485 serial port communication line for real-time data exchange. The temperature signals of the rotary ironing roller are measured through wireless radio frequency power supply and carrier communication, and transmitted to the control system in a wireless transmission mode. The temperature of the ironing roller in the high-speed rotating and heating working process is constant. The structure is simple, the control precision is high, and the fault rate is low.

The invention discloses a heating temperature measurement circuit and a temperature detection method thereof, a cooking device and a storage medium, the heating temperature measurement circuit is arranged on one side of a panel, is used for heating and measuring the temperature of a metal object placed on the other side of the panel, and comprises a first coil and a second coil; the temperature detection method comprises the steps of providing an excitation signal for a first coil so that a metal object can generate eddy current, and further enabling a second coil to generate a receiving signal by the eddy current; determining the measurement temperature of the metal object according to the excitation signal and the receiving signal; obtaining a current disc spacing, wherein the disc spacing is the distance between the first coil and the other side of the panel; and determining the actual temperature of the metal object according to the current disc spacing and the measured temperature. In this way, the accuracy of temperature detection is improved.

The invention discloses a temperature sensor fixing device and a water heater. The temperature sensor fixing device includes a base with a box body, a chute is arranged on the box body, and a bracket detachably connected with the base, the bracket slides up and down along the chute through a spring located in the box body; The top is provided with a buckle for clamping the temperature sensor. Using the fixing device of the present invention to fix the temperature sensor is not only convenient for installation, but also can ensure the close contact between the temperature sensor and the component to be measured to realize accurate temperature measurement. The application of the fixing device in the water heater can improve the accurate and convenient temperature measurement of temperature measurement points such as the water heater liner.

A cigarette tip stick temperature measuring device, comprising a device platform, a cigarette heater supporting and starting device, a suction main body, and a temperature measuring part; the cigarette heater supporting and starting device, a suction main body, and a temperature measuring part are arranged on the device platform Above; the temperature measuring part cooperates with the cigarette heater supporting and starting device, and the suction body to measure the temperature of the mouth stick of the cigarette; the suction body is a three-way structure, and the left end of the three-way structure is inserted into the mouth of the cigarette The rod is kept stable and sealed, the right end is inserted into the temperature measuring element and kept stable and sealed, and the lower end is connected to the smoking machine for cigarette smoking. The invention can realize temperature measurement without affecting the suction, and avoids inaccurate temperature measurement caused by gas leakage; it can be used for simultaneous measurement of the temperature of multiple cigarette tip sticks, especially heat-not-burn cigarette tip sticks, and improves the measurement efficiency; it can be automatically controlled The depth of the thermocouple inserted into the nozzle rod improves the convenience of operation, and the repeatability of the insertion position ensures the stability of the test results.

The invention discloses a wireless humiture probe for a cool chain. The wireless humiture probe includes a housing and a main control board which is arranged inside the housing and a power supply which supplies power to the main control board. The main control board is provided with a humiture measuring circuit, a processing unit and a wireless transmission module. The processing unit processes the data of the humiture measuring circuit and then transmits the data through the wireless transmission module. The humiture measuring circuit includes a thermosensitive resistor and a divider resistor. The divider resistor has a resistance of R. The thermosensitive resistor has a resistance of Rw at room temperature, wherein R is greater than or equal to 10Rw. Since the thermosensitive resistor has resistance increased along with the lowering of the temperature, the divider resistor is provided with a greater resistance with respect to the thermosensitive resistor at room temperature. When the measurement is within an allowable range, close to an upper limit, the divider resistor can share greater voltage, along with the lowering of the temperature, the divider resistor shares smaller voltage. Since the voltage fluctuates widely, measurement is more accurate. When R is greater than or equal to 10Rw, non-linear error brought by the thermosensitive resistor can be controlled within 0.1 DEG C.