12results about How to "Small error in temperature measurement" patented technology

The invention discloses an array type temperature measurement system controlled by a PLC, and relates to the technical field of array type temperature measurement, the array type temperature measurement system comprises a vulcanization mold, a positioning block for positioning a green tire is arranged in the vulcanization mold, and a flow guide groove for heating and vulcanizing the green tire is formed in the vulcanization mold; the upper end of the vulcanizing mold is provided with a molding mold for providing sealing for the vulcanizing process, the surface of the vulcanizing mold is provided with a plurality of temperature measuring grooves for transmitting temperature, power is provided through a rotating motor, a temperature measuring probe drives fixing frames on the two sides to rotate, the fixing frames drive a transmission frame to rotate, and the transmission frame drives a fixing seat to move; the fixed seat drives the fixed frame to move, the fixed frame drives the temperature measuring probe to slide in the temperature measuring groove, the temperature measuring probe detects the temperature of each position of the temperature measuring groove, the detection range is expanded, the detection dead angle is reduced, and the tire vulcanization quality is improved; and the temperature measurement error of the temperature measurement probe is reduced.

This invention discloses a downconversion fluorescence thermometry method based on bilinear mode, implemented using a hardware system. The hardware system includes a 280nm light-emitting diode, two convex lenses, and a Tb... 3+ :Cs2Na 0.9 Ag 0.1 The system comprises InCl6 temperature-sensing material, a grating spectrometer, an oscilloscope, a signal generator, a computer, and a thermostat. The specific implementation steps are: signal excitation and acquisition; temperature calibration; actual temperature measurement; and high measurement accuracy: VPR mode linear correlation coefficient R² ≥ 0.998, FL mode linear correlation coefficient R² ≥ 0.992, avoiding measurement errors introduced by the exponential bias or correction term of traditional FIR technology, thus fundamentally improving temperature measurement accuracy.

This invention discloses an infrared temperature measurement correction method, apparatus, and system for three-dimensional curved surfaces. The infrared temperature measurement correction method includes: dividing the blade surface into at least two emissivity measurement regions according to the surface type of the blade being measured; acquiring the emissivity distribution of each emissivity measurement region on the blade surface at different temperatures; obtaining bidirectional reflection distribution functions for different surface types based on the projected energy of the infrared light source at different incident angles and the reflected energy received by the infrared camera at different detection angles; and obtaining the corrected measurement temperature based on the acquired emissivity distribution of each emissivity measurement region on the blade surface at different temperatures and the bidirectional reflection distribution functions for different surface types. This invention has a wide range of applications and high correction accuracy, and can be used to correct infrared temperature measurements of curved surfaces such as aero-engine turbine blades in complex environments, enabling non-contact, multi-dimensional, and online measurement of curved surfaces.

The utility model relates to a laser welding head temperature closed-loop control optical path system which comprises a bottom main supporting seat, a main supporting seat and a QBH optical fiber connector, the bottom of the QBH optical fiber connector is installed on the top of the main supporting seat through the QBH supporting seat, and the main supporting seat is installed on the bottom main supporting seat; a temperature control fixing frame is installed on the left side of the main supporting seat, a temperature control supporting frame is installed on the temperature control fixing frame, a temperature control base is installed on the temperature control supporting frame, and a temperature control probe is installed on the temperature control base and located over the molten pool. According to the novel temperature closed-loop control light path system of the welding head, the temperature control probe for measuring the temperature is vertically installed above the welding part, real-time monitoring of the welding part is achieved through the beam combiner, and the accuracy of the real-time temperature can be guaranteed to the maximum degree.

The utility model provides equipment cavity temperature measurement system and with the equipment cavity of heating function. Equipment cavity temperature measurement system is used for carrying out temperature measurement to n heating plate in equipment cavity, it includes n thermocouple, first support, n thermoelectric signal transmission wire and thermoelectric signal output module, n thermoelectric signal transmission wire with n thermocouple is connected respectively through n male female matching connecting joint, n male female matching connecting joint and n thermoelectric signal transmission wire are along first support setting, thermoelectric signal output module with n thermoelectric signal transmission wire is connected and transmits n thermoelectric signal to equipment cavity outside, equipment cavity temperature measurement system still includes the n thermocouple pressure block of setting respectively on n heating plate, through the adjustment of each thermocouple pressure block to make the thermocouple and corresponding heating plate contact. The utility model can realize the thermoelectric signal stable collection, transmission of thermocouple, reduce temperature measurement error, installation difficulty and manufacturing cost.

A lead-free packaged all-quartz resonant pressure sensor comprises a 3J21 alloy shell cover, the 3J21 alloy shell cover is connected with a 3J21 alloy shell in a sealed mode, and a quartz island film pressure conversion unit, a quartz resonant layer element and a quartz base component which are connected through a vacuum glass frit sealing technology are arranged in an inner cavity formed by the 3J21 alloy shell cover and the 3J21 alloy shell. Glass frit dielectric layers are arranged between the quartz island film pressure conversion unit and the quartz resonance layer element as well as between the quartz resonance layer element and the quartz base part; three quartz layers and two glass frit dielectric layers are connected to form an all-quartz pressure chip; the all-quartz pressure chip, the 3J21 alloy shell and the gold-plated lead column are connected through sintering of glass silver paste, and a chip electrode signal is led out through the gold-plated lead column; according to the invention, the long-term stability of the sensor is significantly improved, the mechanical strength and reliability of electrical connection are enhanced, real-time and homologous sensing of temperature signals is realized, and the compensation precision of the sensor in a full temperature range is effectively improved.

The present invention provides a pot bottom temperature measurement method, a cooking method, a cooking robot, a device and a storage medium, and relates to the technical field of stoves. The pot bottom temperature measurement method is implemented by using an anti-dry burning temperature measuring probe, and the anti-dry burning temperature measuring probe includes a plurality of temperature measuring parts arranged along its radial direction, and the temperature measuring parts are used to measure the temperature of the pot bottom at the position where the temperature measuring part is located. The pot bottom temperature measurement method includes the following steps: judging whether the temperature measurement value of each temperature measuring part exceeds its threshold value, if the temperature measurement value of all temperature measuring parts exceeds its threshold value, then cutting off the gas supply of the burner, otherwise, continuing to measure the temperature. By arranging a plurality of temperature measuring parts on the anti-dry burning temperature measuring probe, multi-point temperature measurement of the pot bottom is realized, the temperature measurement error is reduced, the accuracy of the temperature measurement of the pot bottom is improved, and misjudgment is avoided. When the temperature of all temperature measuring parts exceeds their threshold value, it indicates that the pot is at the critical point of burning dry, and at this time, the gas supply is cut off to prevent the pot from burning dry.

The application provides a dry burning prevention temperature measuring probe, a pot bottom temperature measuring method and a burner, and belongs to the technical field of burners. The dry burning prevention temperature measuring probe comprises an inner ring assembly and an outer ring assembly. The inner ring assembly comprises an inner ring moving piece and an inner ring temperature measuring piece. The inner ring temperature measuring piece is in heat conduction contact with the inner ring moving piece. The outer ring assembly comprises a plurality of outer ring moving pieces and a plurality of outer ring temperature measuring pieces. A single outer ring moving piece is in heat conduction contact with a plurality of outer ring temperature measuring pieces. The inner ring moving piece and the plurality of outer ring moving pieces are arranged at intervals along the radial direction of the dry burning prevention temperature measuring probe from the inside to the outside. Through the above structure, the dry burning prevention temperature measuring probe can be closely combined with the bottom of the pot, multi-point temperature measurement is realized, the accuracy of temperature measurement of the dry burning prevention temperature measuring probe is improved, and misjudgment is avoided. When the temperature of the bottom of the pot reaches the threshold value of the temperature measuring piece, the gas supply is cut off to prevent the pot from being dry.

This utility model relates to the field of temperature acquisition technology, specifically to a dynamic temperature acquisition device for pharmaceutical cold chain with a multi-level buffer structure. It includes a housing, with a protruding plate fixedly connected to the outer side of the housing. One end of the housing has symmetrically arranged threaded grooves, and one side of the housing has symmetrically arranged mounting components. The mounting components include a connecting plate, with a sliding plate slidably connected to a sliding groove inside the connecting plate. A rotating rod is rotatably connected to an ear plate on one side of the connecting plate. Rotating the rotating rod drives a threaded rod at one end of the rotating rod to move axially along the threaded groove, adjusting the distance between the sliding plate and the protruding plate. This clamps and fixes the device in the installation position, adapting to cold chain box sidewalls of different thicknesses, achieving "one-click" quick installation without drilling or gluing, avoiding damage to the box, ensuring device stability, and improving installation efficiency.

The invention relates to the technical field of ferrous metallurgy, and discloses a furnace baking method for a new intermediate frequency furnace, which comprises the following steps: a, adding 1-2 tons of high-carbon ferro-chrome or ferro-nickel into the bottom of the new intermediate frequency furnace, and paving a layer of refractory material with the thickness of 50-100mm on the high-carbon ferro-chrome or ferro-nickel; b, an infrared heater is used for preheating the intermediate frequency furnace, the infrared heater has an adjustable radiation wavelength range, and the temperature rising speed is controlled to be 3-3.5 DEG C / min; c, when the furnace temperature reaches 800-900 DEG C, liquid molten steel preheated to 1400-1550 DEG C is injected into the furnace, and an electromagnetic induction heating system of the intermediate frequency furnace is started at the same time; according to the method, 1-2 tons of high-carbon ferro-chrome or ferro-nickel is added to the furnace bottom, the refractory material is laid on the high-carbon ferro-chrome or ferro-nickel, and the refractory material is preheated before being laid, so that the initial stability of the refractory material is effectively improved, the furnace bottom is protected from high-temperature erosion, and the service life of the furnace is prolonged. And the radiation wavelength range of the infrared heater can better penetrate through the furnace wall, so that the heating efficiency is improved, and the preheating time is shortened.

The invention provides a radiation temperature measurement system and method based on multi-temperature-section measurement, and belongs to the technical field of high-temperature material radiation temperature measurement. The technical problem to be solved is to provide a radiation temperature measurement system hardware structure based on multi-temperature-section measurement and an improvement of a temperature measurement method. According to the technical scheme, an attenuation piece switching device is installed at the front end in a protective shell, a focusing device is installed in the middle, and an industrial personal computer is installed at the rear end in the protective shell; the attenuation slice switching device comprises a switching wheel, a plurality of holes are formed in the switching wheel along a rotating shaft at equal intervals, attenuation slices with different attenuation degrees are installed in the holes, and the rotating shaft of the switching wheel is connected with an output shaft of a switching stepping motor arranged on the outer side of the protective shell; an industrial lens in the focusing device is installed at the front end of the industrial camera through threaded connection, a driven gear fixedly sleeves a focusing ring at the front end of the industrial lens, and a focusing stepping motor is installed on one side of the industrial lens. The method is applied to high-temperature material temperature measurement.

The invention provides a temperature measuring device, and relates to the technical field of container temperature measurement, the temperature measuring device comprises a telescoping mechanism, a first springback mechanism and a temperature measuring element, the first springback mechanism comprises a first housing, a first elastic member, a first connecting member and an electromagnet, one end of the first elastic member is fixed on the upper wall of the inner cavity of the first housing, and the other end is connected with the electromagnet; one end of the telescopic mechanism is movably connected with a heating workpiece, the other end of the telescopic mechanism is connected with the first shell, the first elastic piece is connected with the fixed end of the temperature measuring element through the first connecting piece, and the end face, close to the temperature measuring element, of the first shell is provided with a first sliding way matched with the first connecting piece in shape so that the first connecting piece can slide in the first sliding way. The temperature measuring end of the temperature measuring element and the electromagnet are arranged in the same direction, the temperature measuring end exceeds the electromagnet by a preset distance in the direction close to the measured object, and the electromagnet is attracted to the measured object after being powered on so that the temperature measuring element can abut against the measured object. According to the invention, the temperature measurement efficiency is improved.