113results about How to "Realize temperature measurement" patented technology

The invention provides a wireless intelligent thermometer. According to the thermometer, a very popular intelligent control terminal such as an intelligent mobile phone and a tablet computer is combined with a temperature sensing terminal with a wireless communication function, the intelligent control terminal and the temperature sensing terminal communicate with each other by wireless connection, so that a temperature signal collected by the temperature sensing terminal in real time is recorded and displayed on the intelligent control terminals. Besides, based on various function modules of the intelligent control terminal, the thermometer can carry out data analysis, image processing, alarm prompting, and the like on the detected temperature information, and therefore, the thermometer is a temperature measuring apparatus with good application prospect, and is especially suitable for monitoring body temperatures of children, patients unable to move freely, and the like and for monitoring basal body temperature of the female.

The invention relates to a combined lithium battery temperature detection circuit, which comprises a temperature measuring circuit. In a module formed by connecting N lithium batteries in series, a thermistor is connected with N-1 temperature switches in series, wherein the thermistor is used for detecting the temperature of one lithium battery; the N-1 temperature switches are respectively used for monitoring the temperature of the rest N-1 lithium batteries; two ends of a series circuit of the thermistor and the temperature switches are respectively connected with a first port and a second port of the temperature measuring circuit through a temperature signal acquisition line; and the operating temperature of the temperature switch is accordant with the operating limit temperature of the lithium battery, when the temperature of the temperature switch is lower than the limit temperature of the lithium battery, the temperature switch is conducted, and when the temperature of the temperature switch is more than the limit temperature of the lithium battery, the temperature switch is disconnected. The combined lithium battery temperature detection circuit has the advantages that the temperature of the lithium battery module can be measured and the temperature of all the lithium batteries can be protected by connecting two signal acquisition lines to the temperature detection circuit of a BMS (battery management system).

The invention discloses a line sag online detection system based on differential locating. The line sag online detection system comprises a base station and a monitoring station; the base station is fixedly provided with a solar energy power supply system, a first satellite receiving module, a first CPU, a first wireless data radio, a 4G communication module and a site extended communication interface; and the monitoring station is fixedly provided with a second satellite receiving module, a second CPU, a second wireless data radio, a pose and motion measuring unit, a non-contact infrared temperature measurement sensor and a line electricity taking module. According to the line sag online detection system based on the differential locating, the base station is arranged on a tower or otherreliable fixed positions, the monitoring station is installed at a line sag point, a satellite differential locating technology is adopted, the base station and the monitoring station receive satellite signals at the same time, real-time differential resolving is carried out through wireless differential links, the elevation and horizontal positions of monitoring points are measured, and the real-time monitoring of the line sag is realized through the combination of data such as line temperature measurement and pose and motion measurement.

The invention relates to a method for melt spinning and cooling a multifilament thread and to a device for carrying out said method. According to said method, a plurality of filaments is extruded from a polymer melt, said filaments being guided in a filament bundle and cooled by a cooling air stream that passes transversally across the filament bundle, the temperature of the cooling air that is evacuated during the cooling of the filaments being measured and monitored. To detect the cooled state of the filaments and the characteristics of the thread derived from said state, the temperature of the cooling air is measured at least at one measuring point inside the filament bundle. To achieve this, a temperature sensor is located inside the filament bundle between the spinneret and a thread guide that is allocated to the latter.

The invention discloses a device for automatically performing temperature measurement and sampling under a vacuum state. A multistage hydraulic cylinder is fixedly mounted on the upper end of a body; a temperature measurement lance and a sampling lance are connected with a piston rod of the multistage hydraulic cylinder through a connector; the lower end of the body is respectively provided with a balancing device, a sealing cover and an operation hole; and the bottom end of the body is connected with a smelting furnace through a flange, wherein the temperature measurement lance and the sampling lance are connected with the threaded piston rod of the multistage hydraulic cylinder through the connector in the body, the sealing cover is mounted in the body, and the operation hole is arranged on one side of the body. The device provided by the invention has the characteristics of simple structure, low cost, convenience in use and operation, stable operation and no furnace blowout, and solves the problem that molten metal under a vacuum state can not be subjected to temperature measurement and sampling in the metal smelting process in a long time. Besides, single-lance operation or multi-lance operation can be realized, and the production efficiency is high. Due to hydraulic transmission, the device provided by the invention has high temperature measurement and sampling success rates, is stable in operation, avoids shaking and other problems during manual operation and can be widely used in the metal smelting industry.

The invention belongs to the technical field of fire preventing and extinguishing under a coal mine, and relates to a mine fire abnormal area detection method based on a directional drilling technique. The detection method can achieve real-time measurement while drilling, the drilling can avoid excavation of used roadways by manually controlling the drilling track, the detection range is extended by adopting a directional drilling branching process, measurement guide wires and sensors are placed through a drilling tool during directional drilling, and detection on a fire abnormal area is completed. The method comprises the steps that the relative locations of small pits, the used roadways and goaves of the abnormal area are inferred according to the data, a detection drilling field is developed in the position close to the suspected fire abnormal area, drilling is implemented, and the detection work of the fire abnormal areas is completed.

The invention discloses a stomach-stored electronic tag with a temperature measuring function. The electronic tag comprises an antenna, a capacitor, a radio frequency identification (RFID) chip and a temperature measuring circuit, wherein the antenna is connected with the capacitor to form a resonant tank which is used for sensing electromagnetic wave emitted by a reader, storing collected energy in the capacitor and supplying power for the RFID chip; the RFID chip is connected with the antenna and the capacitor and is used for sending the stored electronic tag information to the reader through the antenna; and the temperature measuring circuit is connected with the RFID chip and is used for detecting the body temperature of an animal and sending the temperature to the reader through the antenna. The body temperature measuring function is added; the body temperature of the animal is detected through the temperature measuring circuit in real time; a signal modulation system and a frequency band which are identical with the electronic tag are used for sending temperature data; and at the same time, as the stomach-stored electronic tag is stored in the rumen of herbivore such as castle and sheep, the temperature detected by the electronic tag is completely identical with the body temperature of the animal.

The invention discloses a wireless temperature sensor in a shape of a bolt. The wireless temperature sensor comprises a screw portion with a thread and a nut portion which are fixed together. An electricity taking and processing module is arranged inside the nut portion, and a temperature sensing module is arranged in the screw portion. The wireless temperature sensor is easy to install and can not have any influence on power equipment. In addition, the wireless temperature sensor only needs to be installed on a tested object at one time, and is used in a long term without replacement, so that the characteristic of passiveness is achieved.

The invention relates to a displacement temperature measuring device suitable for a high-temperature high-pressure rectangular test piece. The displacement temperature measuring device is composed ofa water-cooled measurement section cavity, a displacement mechanism mounting base, a displacement mechanism, a displacement rod, an air-cooled sealing strip and a multi-point temperature measuring rake. The whole measurement section cavity adopts a reasonable water cooling structure to realize long-time work under high-temperature and high-pressure conditions; the displacement mechanism is drivenby a stepping motor and cooperates with the air-cooled sealing strip, so that continuous linear movement and pulse linear movement of the sensor under the conditions of high temperature and high pressure are realized; the multi-point temperature measuring rake adopts a non-cooling and full-ceramic structure, so that the interference of a water-cooling or air-cooling structure on a measuring resultis avoided and the measuring precision can be effectively improved; meanwhile, the structure is small in size, and interference on a flow field in a combustion chamber is small. The displacement temperature measuring device effectively solves a problem of measurement of temperature distribution of the outlet of the rectangular combustion chamber of the gas turbine, and can realize scanning type measurement of the gas temperature of the outlet section of the whole rectangular combustion chamber.

The invention discloses an LED fluorescence emission spectrum-based surface temperature measurement method, and relates to the field of light emitting diode surface temperature measurement methods. The method comprises the following steps of (1) carrying out region division on a normalized emission spectrum of a fluorescent material and integrating each region, wherein the obtained fluorescent material transmitting power is recorded as Pe; (2) testing the current influence degree of the transmitting power Pe of each integral region, and selecting the integral region with the minimum current influence degree as a detection region; (3) taking 1-3% of a rated current value as small current to supply power to an LED sample, acquiring the emission spectrum of the fluorescent material by using aspectrograph, and establishing a linear relationship between the transmitting power Pe of the detection region and the temperature T of the emission spectrum; and (4) under the practical working state of the LED sample, substituting the transmitting power Pe value of the detection region into a relational expression of Pe and T so as to obtain the surface temperature of the fluorescent material.According to the method, a non-contact method is adopted to measure the surface temperatures of fluorescent materials, so that the influences of LED device packaging are avoided and the reliability ishigh.

The invention discloses a transformer oil paper insulation long-time electric heating combined aging experiment device and method. An electrode plate of a high-voltage electrode is located in a sealing tank, an electrode stem of the high-voltage electrode extends out of an upper cover plate of the sealing tank, the electrode stem of the high-voltage electrode can move relative to the upper cover plate, and a low-voltage electrode is arranged at the bottom of the sealing tank. An insulation sample is arranged between the high-voltage electrode plate and the low-voltage electrode plate, the sidewall of the sealing tank is provided with a temperature measuring conduit and a ground wire wiring conduit which are communicated with the sealing tank, the temperature measuring conduit is blocked by a first rubber plug, the ground wire wiring conduit is blocked by a second rubber plug, and the temperature sensor shell is embedded into the first rubber plug. An inductive probe of the temperaturesensor is arranged at the bottom of the sealing tank, the grounding wire is embedded into and penetrates through the second rubber plug to be connected with the low-voltage electrode, the oil bath groove heats the sealing tank through heating oil in the oil bath groove, and the high-frequency current sensor is installed on the grounding wire. Accurate data reference can be provided for operationand maintenance decisions of the transformer.

The invention discloses a temperature measuring device for the wall temperature of a fine rod narrow gap under a motion condition. The temperature measuring device comprises heating element pipes andone or more sheathed thermocouples. One or more temperature measuring holes are formed in the outer circumferential walls of the heating element pipes in the circumferential direction of the heating element pipes. Compensating conductors of the sheathed thermocouples penetrate through the heating element pipes and then extend outwards. The outer walls of the compensating conductors of all the sheathed thermocouples are sequentially wrapped with high-temperature isolating coatings and high-temperature isolating adhesive tapes. The heating element pipes are filled with high-temperature isolatingsilicone. Through the technical scheme, wall surface temperatures of different positions of all the heating element pipes of a high-temperature fine rod bundle narrow gap fuel assembly can be accurately measured under the motion condition, the sheathed thermocouples do not shed or are not subjected to an insulation failure, temperature measuring parts conduct temperature measuring in the rod bundle heating element pipes, thus flow fields and temperature fields beside the heating element pipes cannot be interfered, and thermo-technical performance parameters such as the heat transfer coefficient and the critical heat flux density of the fuel assembly can be accurately obtained by carrying out heat transfer experiments of the fuel assembly under the motion condition.

The invention relates to a temperature measuring rod which comprises hollow cylindrical rod bodies and a wireless transceiving control terminal, wherein the wireless transceiving control terminal is fixed at one end of one rod body and electrically connected with the rod body; a temperature induction device is arranged on one rod body; connecting threads and an electrical connector are arranged at two ends of the rod body, and connection and electrical communication between the rod bodies can be realized through a hard bolt fastening device. The temperature measuring rod is simple in structure and convenient to operate; three-dimensional distributed temperature measurement and remote control of a measured object are realized through multi-rod cascading and wireless transceiving control, and the measurement accuracy and the work efficiency are improved; and simultaneously, a drill and a floating carrier are supplemented, so that temperature measurement of different materials is realized, the requirements of different production fields are met, and the field application is more flexible, efficient and comprehensive.

The invention discloses a quartz accelerometer semiconductor heat dissipation structure for an inertial platform, relates to the field of mechanical structure design of an inertial measurement deviceand is mainly used for realizing high-precision inertial navigation in the fields of aviation and spaceflight. The structure is characterized in that a heating rod is arranged in the center of a temperature control body, a temperature measuring sensor is arranged on the temperature control body, so heating and temperature monitoring of the temperature control body are realized, a semiconductor bottom plate is pressed on a mounting surface of a table body, the temperature control body is pressed on the semiconductor bottom plate and is used for refrigerating and cooling the temperature controlbody through a one-way heat transfer function of the semiconductor bottom plate, a semiconductor shell plate is arranged on an outer surface of a wind shielding shell, the temperature control body, and the quartz accelerometer, the heating rod and the temperature measuring sensor are wrapped in the shell. The structure is advantaged in that influence of air disturbance around the table body is avoided, the semiconductor shell plate is used for refrigerating and cooling the wind shielding shell, temperature stability and rapidity of the temperature control body are guaranteed; good heat conduction gas helium is filled into a gap between the wind shielding shell and the table body, gap thermal resistance between the temperature control body and the wind shielding shell is reduced, and the heat dissipation capacity of the temperature control body is improved.

The invention belongs to the technical field of radiation temperature measurement. Radiation energy of a turbine blade in three different wavebands and environment energy data acquired in the three wavebands are acquired and substituted into an error function of a three-wavelength radiation temperature measurement method, then an L-M algorithm based on step-by-step long search is used, the temperature distribution range of the turbine blade is divided, one temperature value is taken as an initial value for solving in each temperature range, and finally all obtained results are compared to obtain a minimum error value and a temperature corresponding to the minimum error value, namely, the minimum error value is regarded as the real temperature of the surface of the turbine blade. The method can realize the radiation temperature inversion of the turbine blade with unknown emissivity in the radiation environment, and has the characteristics of high measurement precision and high operation speed.

The invention provides an infrared thermal imager calibration method based on FPA temperature. The infrared thermal imager calibration method provided by the invention comprises the steps that a piecewise linear model of the output of an infrared thermal imager and FPA temperature is established, and the output of the infrared thermal imager outside a calibrated FPA temperature interval is predicted; the FPA temperature range is divided into several cells; in each cell, FPA temperature and the output of the infrared thermal imager are established; and an output model is corrected; in each interval section, the output of the infrared thermal imager is corrected, and the output distortion, which is caused by the FPA temperature change, of the thermal imager is eliminated; and finally, the model of the corrected output of the temperature and the infrared thermal imager is established piecewise to realize temperature measurement of the infrared thermal imager. According to the invention, FPA temperature compensation is carried out outside a sensor when a sensor manufacturer does not support temperature measurement, and accurate temperature measurement is realized.

A high-voltage power distribution cabinet optical fiber temperature measurement system based on long-distance monitoring of the internet of things comprises a temperature measurement sensor, a temperature sensor is connected with a switch circuit, the switch circuit is connected with a signal processing circuit connected with a computer control center, a network server of the computer control center has access to a computer of the internet of things through the Internet, the network server of the computer control center further has access to a mobile phone of the internet of things through a 3Gwifi network, the mobile phone of the internet of things is provided with a sensor information storage display module, a networked mobile phone information transmitting module and a networked computer information transmitting module, the network server is provided with a network service module, the computer control center is provided with a user management module of the mobile phone of the internet of things, the computer of the internet of things is provided with an information receiving and processing module, and the mobile phone of the internet of things and the computer of the internet of things are respectively provided with a networked controller information transmitting module. According to the high-voltage power distribution cabinet optical fiber temperature measurement system based on long-distance monitoring of the internet of things, measurement of temperature in a high-voltage power distribution cabinet and long-distance monitoring based on the internet of things are achieved.

The invention provides a length-adjustable thermocouple, which comprises a junction box, a protection assembly, a first conductor and a second conductor. The inner circumference of one end, far away from the junction box, of a first protection pipe is provided with a first annular groove; the groove wall of the first annular groove is provided with a first internal screw thread; one end of a second protection pipe is provided with a first annular ring; the periphery of the first annular ring is provided with a first external thread; the inner circumference of one end, away from the first annular ring, of the second protection pipe is provided with a second annular groove; the groove wall of the second annular groove is provided with a second internal screw thread; one end of a third protection pipe is provided with a second annular ring; the periphery of the second annular ring is provided with a second external thread; the inner circumference of one end, far away from the second annular ring, of the third protection pipe is provided with a third annular groove; the groove wall of the third annular groove is provided with a third internal screw thread; one end of a fourth protection pipe is provided with a third annular ring; the periphery of the third annular ring is provided with a third external thread; and the first conductor and the second conductor are connected to form a loop. The length-adjustable thermocouple realizes temperature measurement of temperature measurement regions in different heights.

The invention provides a length-adjustable high-precision thermocouple comprising a junction box, a protective tube and a thermal electrode, the protective tube comprising a first tube body, a second tube body and a third tube body, the thermal electrode comprising a first conductor, a second conductor, a first helical wire, and a second helical wire. Only the third tube body is rotated when the length of the thermocouple is required to be adjusted. The first conductor and the second conductor are connected with binding posts in the junction box through the first helical wire and the second helical wire, respectively. The first conductor and the second conductor are sleeved with a first insulation protection tube and a second insulation protection tube respectively so as to ensure the temperature measurement performance of the first conductor and the second conductor. Through the cooperation of the first tube body, the second tube body, the third tube body, the first conductor and the second conductor, the length-adjustable high-precision thermocouple measures the temperature of temperature measurement areas at different heights, is simple in operation, convenient to use, and high in temperature measurement precision.

The invention belongs to the technical field of nanometer material testing, and particularly relates to a magnetic nanoparticle temperature measurement method based on electron paramagnetic resonance integral spectrum full-width-at-half-maximum, which comprises the following steps: measuring a paramagnetic resonance wave spectrum of a magnetic nanoparticle liquid sample, carrying out integration to obtain an integral spectrum, then extracting full-width-at-half-maximum information, and carrying out temperature measurement according to the change of the full-width-at-half-maximum. A temperature measurement model representing the relation between the full width at half maximum and the temperature is obtained through an experiment, and then the temperature is obtained through calculation according to full width at half maximum information of a sample to be measured. The magnetic nanoparticles have superparamagnetism, and the resonance spectrum of the magnetic nanoparticles can be easily obtained by using electron paramagnetic resonance equipment. Research finds that under the condition that particle size distribution of particles is fixed, spectrum full-width-at-half-maximum change after integration is only related to temperature, concentration change does not influence the spectrum full-width-at-half-maximum change, influence caused by system noise can be partially reduced through integration operation, temperature measurement is more accurate, and therefore the method can be well suitable for life medicine and has good application prospects. And in-vivo non-intrusive temperature measurement is carried out.