74 results about "Temperature pulse" patented technology

Methods and devices for testing for the presence, absence and/or rate of flow in a shunt tubing implanted under the skin by using a measurement pad having a plurality of temperature sensor configurations, or by using other temperature sensor arrangements, or by using a temperature sensitive material, which are positioned over, or in the vicinity of, the CSF shunt in substantially an upstream and downstream orientation. A temperature source, e.g., a cooling agent, is then applied at a predetermined location with respect to the measurement pad that is insulated from the temperature sensors, or to the temperature sensitive material. The movement of this temperature “pulse” is detected by the temperature sensors, or temperature sensitive material, via the shunt tubing as the CSF carries the temperature pulse while a control sensor detects the pulse via convection through the skin. The temperature data from these sensors are provided to a CSF analyzer that subtracts the control sensor data from each of the other sensors for determining a CSF shunt flow status or flow rate. A reader is used to optically or electrically detect the changes in the temperature sensitive material for determining a CSF shunt flow status or flow rate.

The invention relates to an optical fiber IMU (inertial measurement unit) data collecting system for unmanned aerial vehicle electric power routing inspection. The optical fiber IMU data collecting system comprises a signal input module, a signal collection and preprocessing module and a data communication interface module, wherein the signal input module comprises three paths of accelerometer pulse signals, three paths of gyro pulse signals and three paths of digital temperature signals, and the signals are sent to an FPGA (field programmable gate array) by an optical coupling circuit in an isolated way. The signal collection and preprocessing module is realized by an FPGA chip and a peripheral configuration circuit of the FPGA chip, in addition, the gyro, accelerometer and temperature pulse signals are received in a parallel way, and the smoothening and the preprocessing of data are completed. The data communication module realizes the communication with a host machine through a serial port RS422, on one hand, the data is packed to be sent to a host machine to be resolved or stored, on the other hand, the time synchronization between an IMU and a GPS (global positioning system) is realized, and the reliability of the data is ensured. The invention realizes the light small universal data collection system with high reliability, and important practical significance can be realized on the integrated research and development of the electric power line routing inspection system based on an unmanned aerial vehicle.

A method and device for testing for the presence, absence and/or rate of flow in a shunt tubing implanted under the skin by using a measurement pad having a plurality of temperature sensors, one of which is aligned with the shunt and the other sensors being symmetrically displaced on either side of the first temperature sensor in a direction transverse to the shunt tubing. These “outer” temperature sensors act as control temperature sensors. A temperature source, e.g., a cooling agent, positioned within an insulated enclosure, is then applied at a predetermined location on the measurement pad that is insulated from the temperature sensors. The movement of this temperature “pulse” is detected by the shunt-aligned temperature sensor via the shunt tubing as the CSF carries the temperature pulse while the control sensors detect the pulse via convection through the skin. The temperature data from these sensors are provided to a CSF analyzer that determines a CSF shunt flow status or flow rate.

The invention discloses an experimental simulation device and an experimental simulation method for temperature-pressure pulse composite cracked coal. The device comprises a closed three-shaft pressurizing device, a temperature-pressure pulse composite cracking device, a vacuumizing and gas inflation device and a monitoring device, wherein the temperature-pressure pulse composite cracking device comprises a temperature pulse generation device and a high pressure pulse water pump, the vacuumizing and gas inflation device comprises a vacuumizing pump and an gas injection bottle and is connected with coal via a three-way valve; the closed three-shaft pressurizing device comprises a coal sample tank, pressure plates are arranged on three inner side surfaces of the coal sample tank, and a pushing rod is perpendicularly arranged on the outer side of each pressure plate; the monitoring device comprises a gas concentration monitoring probe, a camera probe with a light source and an electric wire; a cubic groove in the coal sample tank is connected with the coal sample in the closed three-shaft pressurizing device. According to the device and the method provided by the invention, gas adsorption capacity is reduced and gas desorption is promoted by using temperature and pressure pulses by simulating pressure and gas occurrence situations around an underground coal seam; operation is simple, installation and arrangement are felicitated, and production cost is reduced.

An ammonia generating and delivery apparatus generating ammonia by heating a precursor material with a heating device controlled by a temperature pulse controller which receives commands from a pressure controller, and delivering ammonia with a flow rate controlled by a three-stage PWM controller. The temperature pulse controller is used in a first feedback loop to create a temperature pulse sequence at a surface of the heating device. A pressure controller in a second feedback loop provides duty-cycle commands to the temperature pulse controller, while in delivering ammonia, effects of pressure variation to delivery accuracy are compensated in the three-stage PWM controller, which includes a flow-rate feedback loop. The ammonia generating and delivery apparatus can also include two containers, in which the precursor material in one container is charged and discharged according to the capability of the other container in generating ammonia.

The invention discloses a GPS multifunction turbulence radiosnode and a measurement method thereof. The radiosonde comprises a sensing part (1) including a temperature pulse sensor (11), a Barometric pressure sensor (12), an atmospheric temperature sensor (13) and a GPS sensor (14), a signal converting part (2) including an analog-to-digital converter MAX197 and a singlechip AT89C2051, a transmitting part (3) including a lever translator and a transmitter (31), and a power supply (4), all of which are used to convert electric signals output by the sensors into digital signals, and calculate, analyze, code and transmit the digital signals. The method comprises the following steps of: receiving the signal output by the sensors and outputting digital signals; particularly setting time slice for acquiring the output of the sensors and acquisition frequency and determining the acquisition proportionality coefficient of the sensors according to the acquired sensor; and processing and coding the data converted into digital signals and transmitting the data converted into digital signals to the transmitting part to be transmitted. The invention can accurately position and measure the atmosphere turbulence and wind direction and speed at the measurement points.

The invention discloses a temperature sensor integrated in an RFID tag. The temperature sensor comprises a temperature pulse conversion circuit, a counter, an oscillator, an RFID tag clock, a digital control circuit and a load modulation circuit; the counter, the oscillator, the RFID tag clock, the digital control circuit and the load modulation circuit are all common module circuits between the temperature sensor and other modules; the output end of the RFID tag clock is connected with the input end of the digital control circuit through the oscillator and the counter sequentially; the output end of the temperature pulse conversion circuit is connected with the enabling end of the counter; the output ends of the digital control circuit are connected with the reset end of the counter, the temperature enabling end of the temperature pulse conversion circuit and the enabling end of the oscillator; and one output end of the counter is connected with the input end of the load modulation circuit. The temperature sensor of the invention has the advantages of small chip area, low power consumption and low cost, and can be widely applied to the RFID technology field.

The invention provides a low-bath-ratio high-temperature pulse type jet dyeing machine. The jet dyeing machine mainly comprises a main cylinder, an auxiliary cylinder, a liquid adding pump, a cylinder cover assembly, an auxiliary cylinder liquid return pipe, a movement system, a dye flow dividing pipe, a liquid level meter, a pressure meter, a decompression valve, a main cylinder liquid return pipe, a main pump, an adding valve set, a steam trap assembly, a coiled pipe steam inlet, a star-shaped spraying pipe, a sprinkler spraying pipe, a filter screen, a heat exchanger, a partition board, a spraying pipe support, a center pipe, a transmission shaft and other parts. According to the pulse type high-temperature jet dyeing machine, spray dyeing is conducted on fabric from the upper direction and the lower direction by means of the star-shaped spraying pipe and the sprinkler spraying pipe, and dyeing uniformity can be effectively improved. A central control system controls the jet flow and pressure of dye liquid according to properties of the fabric and fabric winding thickness, and accordingly dyeing quality can be effectively controlled. The jet dyeing machine can obviously save auxiliaries and dye, reduces waste liquid discharge, and has extremely remarkable economic and social benefits.

The invention provides a separation type gas-control high-temperature pulse valve which is composed of a solenoid electric valve and a pulse valve body. The pulse valve body comprises a valve body, a piston assembly and a sealing assembly. The valve body is provided with an injected gas inlet, an injected gas outlet and a control port. The gas control port is connected with the solenoid electric valve through a gas pipeline. The injected gas outlet is opposite to the gas control port. The piston assembly is located in the valve body and comprises a piston rod. One end of the piston rod is connected with a piston, and the other end of the piston rod is connected with one side of a gland. The sealing assembly is located in the valve body and comprises a sealing ring. The piston is located between the gas control port and a supporting plate. The piston rod penetrates the supporting plate. The other side of the gland is the injected gas outlet. The sealing ring seals the portion between the gland and the injected gas outlet. The injected gas inlet is located between the gland and the supporting plate. According to the separation type gas-control high-temperature pulse valve, the spraying and blowing work is achieved by alternately attaching the contact face of the gland to the contact face of the sealing ring and separating the contact face of the gland from the contact face of the sealing ring, the process is controlled through reciprocating movement of the piston assembly, the influence on the solenoid electric valve by heat conduction is weakened, and the reliability of work is improved.

The invention discloses a method for automatically dismantling and recovering electronic components on waste printed circuit boards by using industrial waste heat. It uses industrial waste heat to prepare low-grade superheated steam through the waste heat boiler, and then uses the superheated steam as the heat source and power to realize the automatic disassembly of waste printed circuit board electronic components through high-temperature pulse injection of superheated steam; the superheated steam after work is condensed After the device is properly treated, it is returned to the waste heat boiler for recycling; the gas generated during operation is collected by a non-condensable gas collection device, and then directly discharged after proper treatment. The invention proposes to use the superheated steam prepared by industrial waste heat as the heat source and power to realize the automatic disassembly and recovery of waste printed circuit board electronic components, and at the same time realize the resource utilization of industrial waste heat and waste printed circuit boards, which conforms to the principle of green, low-carbon and environmental protection, and has the advantages of Significant socio-economic and environmental benefits.

An image rewriting process of rewriting an image displayed by applying any one of a first electric potential or a second electric potential to each of a plurality of pixel electrodes and by moving electrophoretic particles by an electric field generated between the pixel electrodes and a common electrode includes a temperature determining process, and includes a first pulse application process which uses the driving pulse signal with the pulse width being a first width, a low temperature pulse application process, and a second pulse application process which uses the driving pulse signal with the pulse width being a second width, performed at the end. The low temperature pulse application process uses the driving pulse signal with the pulse width being the first width.

The invention discloses a high-temperature pulse flow yarn dyeing machine with an ultra low bath ratio and a control method thereof. The yarn dyeing machine comprises a dye vat, a creel, a heat exchange coiler, an adaptive water level monitoring device, a variable frequency motor, a three-level vane pump with an ultra low bath ratio and a dyeing computer. The method comprises the following steps: a time pulse generator in the dyeing computer gives out pulse flow data to a variable frequency motor controller to control the revolving rate of the variable frequency motor according to the set technological process; the variable frequency motor drives the three-level vane pump with an ultra low bath ratio to output dyeing flow in pulse flow type fluctuation; the output dyeing flow carries out adaptive adjustment according to an ideal reference model in the dyeing computer; the adaptive water level monitoring device gives out water-level reference identification information; and according to the information, a water level regulator and the variable frequency motor controller respectively regulate the water level and the variable frequency motor to reach the water level and the pulse flow required by the set technological process. The pulse flow dyeing technology in the invention conforms to the requirement of the minimum consumption of four factors, namely, water, energy, accessory ingredient and time for economical dyeing of ecological environment protection.

The invention belongs to the field of electronics and control technology, specifically relates to a control method for saving energy in water circulating pump in winter. Its specific steps are that preinstall turning frequency, turning delay, the minimum and maximum limit of different temperatures pulse frequency. According to the range of temperature between outlet pipe and return pipe the energy-saving control cabinet adopts the PID algorithm to adjust pump operation frequency, when the pump operating frequency is lower than the turning frequency and the break over delay, and then pump operation frequency will be adjusted to the temperature maximum pulse frequency, and maintain a maximum delay time; pump operation frequency is higher than turning frequency and then adjusting by PID regulator; If the pump operating frequency below the turning frequency after adjustment, returning to the steps at the beginning of re-operation; if operation frequency higher than the break over frequency, entered the PID regulator. The invention adopts pulse working to prevent the water pump electricity motor works in the lower frequency limit for long hours, which cause the pipeline freezing and frost cracking because the end of pipeline can't bear under lower temperature long time and couldn't achieve consumer need. To the PWM technology application, the heating temperature is able to adjust heating temperature real-time in accordance with outdoor free air temperature.

The present invention discloses a system and method for fast response thermocouple dynamic characteristic calibration based on a miniature detonation field. A lot of gas is generated at the moment of self-reaction substance thermal decomposition, a diaphragm is burst to generate high-temperature and high-pressure detonation air flow as a basis, and high-slope temperature pulse signals with a certain width are provided as a fast response thermocouple calibration excitation source to realize dynamic characteristic calibration. The experiment system corresponding to the method comprises a heating and temperature control system, a fire blast field, a diaphragm, a fire blast experimental section, a thermocouple to be calibrated, a thermocouple fixed support, a pressure sensor, a test sample, an amplification circuit, a data collection card and a computer. The system and method for fast response thermocouple dynamic characteristic calibration based on the miniature detonation field can realize dynamic characteristic calibration of the ten-millisecond grade rapid response thermocouple.

The invention relates to a hydraulic pulse test system for testing the fatigue life of a hose such as a rubber pipe under high-temperature pulse pressure, and test pressure can be controlled. The system comprises an oil tank, a power device, a pulse generation device, a tested piece, a high-temperature heating device, a liquid supplementing and gas exhaust device and a leakage recycling device. The oil inlet and outlet of the oil tank are respectively connected with the oil inlet and outlet of the power device; the oil inlet and outlet of the power device are respectively connected with the oil inlet and outlet of the pulse generation device; the pulse generation device is connected with the tested piece; the tested piece is arranged in the high-temperature heating device; an oil outlet ofthe liquid supplementing and gas exhaust device is connected to the tested piece; the leakage recycling device is mounted below the tested piece; and an oil outlet of the system is connected to the oil tank of the liquid supplementing device.

The invention relates to a high-temperature resisting and soundproofing anti-skidding door cover for a high-temperature pulse bag type dust collector. The high-temperature-resisting and soundproofing anti-skidding door cover comprises a cover plate with a side overturned, and sealing strips arranged around the cover; the cover plate is formed by anti-skidding patterned steel; high-temperature resisting and heat insulating soundproofing cottons are positioned in the cover plate; internal baffle plates are arranged around the high-temperature resisting and heat insulating silencing cottons, and form a sealing groove together with the overturned side of the cover plate; a high-temperature resisting sealing strip is arranged in the sealing groove; and high-temperature resisting and soundproofing microvoid plates are arranged at the bottoms of the high-temperature resisting and heat insulating soundproofing cottons. According to the high-temperature resisting and soundproofing anti-skidding door cover, the cover plate is formed by the anti-skidding patterned steel, so that the shortcoming that the upper part of the cover plate is slippery in rain and snowfall weather can be overcome; the high-temperature resisting and heat insulating soundproofing cottons are positioned in the cover plate, so that the cover plate can be effectively prevented from meeting excessively high temperature; and the high-temperature resisting and soundproofing microvoid plates are also arranged at the bottoms of the high-temperature resisting and heat insulating soundproofing cottons, thus the shortcoming that high noise is generated during pulse jetting can be effectively overcome.

The invention provides a pulsed temperature variable sterilizing manner. According to a F0 sterilization technology theory and a principle that microorganisms are easily and rapidly killed due to rapid temperature fluctuation in a high-temperature state and based on a hot water spraying system and multi-grade temperature rise of a temperature-pressure balance system, hot water is adjusted by a steam valve with an opening degree with free and micro adjustment and a heat exchanger when the central temperature of a food reaches a relatively high temperature region, rapid pulsed temperature variation in a hot water spraying device kettle is accurately controlled, the temperature is continuously varied for many times to form a pulsed temperature variable curve, and microorganisms are subjected to cyclical rapid instant temperature variation in a high-temperature region so that the aim of rapidly killing microorganisms is achieved.

The invention discloses a dual-pulse quick nitriding method and device based on induction heating. A workpiece in a vacuum tube is subjected to quick heating and nitriding through a high-frequency power supply; the surface temperature of the workpiece and the pressure of nitriding gas in the vacuum tube are monitored through an infrared temperature detector and a pressure sensor; and a control system is used for controlling the workpiece to make pulse cycle within the set temperature range or be stabilized at the set temperature through a temperature signal, and controlling the pressure in the tube to present rectangular pulse change through a pressure signal. The dual-pulse quick nitriding method and device based on induction heating have the advantages that temperature pulses improve the vibration frequency and amplitude of surface atoms, pressure pulses improve the quantity of active nitrogen atoms in media, nitriding of nitrogen atoms is accelerated finally on the condition of dual pulses, and quick nitriding of metal is achieved.

The invention discloses a comprehensive testing system for high-temperature pulse of a steering power hose of a motor vehicle, which is high in integration level, adjustable in pressure pulse curve and extremely low in energy consumption. The comprehensive testing system comprises an oil tank and a bracket device arranged at one side of the oil tank, wherein the measured hose is fixed on the bracket device. The comprehensive testing system is characterized by comprising a hydraulic power loop, a control loop and a high-temperature pulse loop. The comprehensive testing system disclosed by the invention has the advantages that on principle selection of the hydraulic control system, an accumulator-pressurizing mode is adopted for pressurizing the measured hose; and compared with the general principle that a motor pump set is directly adopted for pressurizing the measured hose, the energy is greatly saved and the testing cost is effectively reduced.

The invention discloses a high-temperature pulse dynamic strain calibration device, and belongs to the technical field of strain measurement and testing. The device is mainly composed of a dynamic strain excitation system, a high-temperature environment test system, a calibrated strain measurement system, a laser measurement system and a base support. The projectile body accelerated by the pushingof the compressed gas impacts the incident rod at a high speed to generate the pulse strain as a dynamic strain excitation source, that is, the pulse strain is generated based on a double-Hopkinson separation rod impact mode, so that the pulse strain within a large range and lasting time can be realized. According to the invention, a strain value measured by the laser Doppler measurement system is used as a standard value, and a high-temperature environment test system is combined to adopt a local semi-closed heating scheme, so that strain dynamic calibration at a high temperature is realized. According to the invention, strain measurement calibration is expanded from static characteristics to dynamic characteristics, and strain dynamic calibration in normal-temperature and high-temperature environments can be realized at the same time.

The invention provides a sign information data acquisition method and system based on the Internet of Things. Multiple Bluetooth devices can be integrated, be automatically matched and connected withBluetooth hubs with small loads in the communication range, seamlessly roam among the different hubs and upload data anytime and anywhere. The acquisition method mainly comprises the steps that the Bluetooth hubs and the Bluetooth devices are matched and connected to enable each Bluetooth device to seamlessly roam among the multiple Bluetooth hubs; Bluetooth data, collected by the Bluetooth hubs,of the Bluetooth devices are loaded into a message queue with the lowest load, and the Bluetooth data waits to be processed according to a first-in first-out rule in the message queue; data packet splicing is conducted on the Bluetooth data of the same Bluetooth device, and then sign information data is extracted; the extracted sign information data is stored and returned to an HIS temperature-pulse-breathing chart of a patient in the form of a nursing plan; and the sign information data is displayed.