68 results about "Radiosonde" patented technology

Radiosondes (200) and related radiosonde systems (500) include a plurality of different sensors (105, 218, 237, 239) for acquiring sensor data related to atmospheric data, wherein the plurality of sensors consist of a single humidity sensor (105) that is within a sealed housing (120). The sealed housing (120) includes a hydrophobic filter window (130) that allows in ambient gases while preventing entry of condensed forms of moisture from entering the sealed housing (120). A wireless transmitter (255) including an antenna (228) is coupled to an output of the plurality of sensors (100, 218, 237, 239) for transmission of the sensor data over a wireless path to at least one ground based receiver. The radiosonde (200) is generally exclusive of any heater.

A neural network process for improving wind retrievals from wind profiler measurements is described. In this invention, a neural network is trained to retrieve (missing or incomplete) upper level winds from ground based wind profiler measurements. Radiosonde measurements in conjunction with wind profiler ground measurements for specific geographical locations are used as training sets for the neural network. The idea is to retrieve timely and spatially continuous upper level wind information from (fragmented or incomplete) wind profiler measurements.

The invention discloses a radio-sondage system based on a dual-redundancy fixed wing unmanned aerial vehicle. The system comprises the fixed wing unmanned aerial vehicle, a radiosonde and an earth station, wherein the fixed wing unmanned aerial vehicle drives the radiosonde to rise to the sky, and the radiosonde transmits acquired data to the earth station for processing. According to the invention, a dual-redundancy sensor is employed, the system comprises a high-precision mounted MTI, a low-precision onboard combined sensor, a high-precision differential GPS and a low-precision barometer, and the reliability and the safety of the fixed wing unmanned aerial vehicle are improved; and the earth station and a wireless data transmission module are added, and the course of automatic flight can be modified at any time. The system is applied to development of round-the-clock high-resolution atmosphere boundary-layer detection, and while ensuring completeness of detection data, can also effectively reduce manpower cost, thereby being a feasible replacement scheme of a conventional common atmosphere boundary-layer detection means.

The apparatus for determining the dew-point and/or the content of vapor in the air, particularly for the use in radio sondes, comprises a dew-point mirror assembly, including a source of light, a reflector, a cooling element thermally coupled to the reflector, a temperature sensor for measuring the temperature of the reflector, and a detecting sensor for receiving the light emitted by the light source and reflected by the reflector. The detecting sensor is located in a temperature stabilized region of the apparatus and optically coupled to the reflector by means of a light wave conductor. The light source is an incandescent lamp. A sensor head is provided that receives the reflector, the cooling element, the light source, and the input end of the light wave conductor. The sensor head is heated by means of an active heating element. For exactly determining the temperature of the reflector, a combination thermo element/reflector is proposed, whereby the thermo element is constituted by two sheet metal plate members soldered to each other face to face. The surface of one of the sheet metal plate members is highly reflective and constitutes the reflector. With the help of such an apparatus, the dew-point and/or the content of vapor in the air can be determined very accurately.

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 cloud-base height inversion method based on radio occultation detection data, comprising the following steps of: firstly, giving statistics of distribution characteristics within the worldwide COSMIC occultation vertical sounding scope and calculating the probability of the cloud-base height inversion influenced by the COSMIC sounding scope; secondly, reading temperaturedata and water vapour pressure data from COSMIC occultation detection moist air data; thirdly, acquiring cloud-base height information with the combination of relative humidity variation profile inversion based on the method brought forward by Wang for determining the cloud-base height by using relative humidity profile data; finally, based on the method brought forward by Wang for determining the cloud-base height by using the relative humidity profile data, carrying out the cloud-base height inversion by the adoption of radiosonde detection data, and calculating the relative difference between the radiosonde cloud-base height inversion result and the COSMIC cloud-base inversion result. The cloud-base height inversion method provided by the invention makes up the defects that previous satellite remote sensing can not provide bottom cloud-base height information and the reliability of field observation is poor for the detection of the medium cloud-base height and the high cloud-base height.

Provided is an apparatus and method for radiosonde power control based on position estimation, including a radiosonde system including a radiosonde that may collect weather information, receive Global Positioning System (GPS) information, and transmit a signal including the collected weather information, and a receiver that may receive the signal, and the radiosonde may also recognize a current position based on the GPS information and control a transmission power based on a distance between the current position and a position of the receiver.

Provided is a low atmosphere ascent and descent observation experimental tool. Since a position of a radiosonde and a ground captive position of the radiosonde is accurately grasped using a GPS radiosonde, accurate observation results may be obtained.

The invention discloses a radio-sondage system. The radio-sondage system comprises a housing, a sounding unit and a ground data processing unit, wherein the sounding unit comprises a propeller, and a motor and a radiosonde which are arranged in the housing, and the radiosonde comprises a power supply module supplying power, a miniaturized processor, an air pressure sensor, a temperature sensor, a humidity sensor, a satellite positioning navigation sensor and a wireless data transmission module; and the ground data processing unit comprises a ground wireless data transmission module and a storage module which are successively connected. The radio-sondage system is applied to development of round-the-clock high-resolution atmosphere boundary-layer detection, and while ensuring completeness of detection data, can also effectively reduce manpower cost, thereby being a feasible replacement scheme of a conventional common atmosphere boundary-layer detection means.

The invention discloses a radiosondage system based on a dual-redundancy six-rotor unmanned aerial vehicle. The system comprises a six-rotor unmanned aerial vehicle, a radio sonde and an earth station. The six-rotor unmanned aerial vehicle drives the radio sonde to rise, and the radio sonde transmits the collected data to the earth station processing. According to the system, a dual-redundancy sensor is used, and the reliability and security of the flight of the six-rotor unmanned aerial vehicle are improved. The earth station and a wireless data transmission module are added, and the course of automatic flight can be modified at any time. The radiosondage system is used for developing all-weather high resolution atmosphere boundary layer detection, while the integrity of detection data is ensured, the expense of human power can be reduced, and the system is a feasible substitution scheme for a present atmosphere boundary layer detection common mean.

The invention relates to an arrangement for a launcher (100) for sonde units (60) and a method for launching a sonde unit (60) from a generic launcher (100). The arrangement according to the invention comprises at least one sonde case (20), which has a generic body (21) for storing a sonde unit (60), a generic launch base (10) for receiving a sonde case (20), which launch base (10) has means for launching the sonde unit (60), generic means for creating a sonde connection between the launcher (100) and a radiosonde (50), a mechanical adapter (22), which is arranged to connect to the generic body (21) and the sonde unit (60), and which is arranged to convert the generic launch means of the launch base (10) to become meteorological-balloon and sonde- specific, as well as an adapter unit (23), which is arranged to connect to the mechanical adapter (22), and which is arranged to convert the generic sonde connection to be radiosonde-specific.

According to an example aspect of the present invention, there is provided a method in connection with a radiosonde, the method comprising measuring a humidity of the atmosphere at several different altitudes in the atmosphere, measuring a pressure at several different altitudes in the atmosphere or calculating the pressure from an altitude of the radiosonde obtained from GPS or other satellite navigation system, measuring or estimating a temperature of a humidity sensor, and measuring a relative humidity by a capacitor with a polymer insulator, wherein the relative humidity value is corrected based on a correction factor, which is a function of pressure, humidity sensor temperature, and relative humidity, such that the humidity value decreases when pressure decreases.

The present invention can be made more lightweight even if a dry cell is used as a power source battery, can supply a necessary voltage at a battery capacity corresponding to an observation time, and can generate a predetermined electromotive force even in extremely low-temperature environments, This radiosonde power source device supplies driving electrical power to an apparatus tor processing and transmitting observation information resulting from, observing meteorological phenomena of the upper atmosphere, and has; a dry cell such as a lithium battery having a rated voltage lower than the driving voltage of the apparatus; and one or more step-up power source circuits that step-up the voltage of the dry cell to a predetermined voltage.

The invention relates to a method and a radiosonde. According to the method at least temperature and relative humidity of the atmosphere are measured by a radiosonde. In accordance with the invention the humidity measurement is performed continuously in an elevated temperature in order to make the measurement faster and both the elevated temperature and ambient air temperature are measured simultaneously and based on these values relative humidity is determined and the humidity sensing elements are positioned on a planar substrate.

The invention relates to a method for correcting a radiation error in atmospheric temperature measurement, particularly when using a radiosonde (1), a rocket, or a dropsonde, in which method at least one temperature measurement sensor is used in each measuring device. According to the invention, the state of motion of the sonde (1) relative to the ambient air is measured essentially simultaneously with the temperature measurement, and the result of the measurement result is used to correct the error of the temperature measurement.

The present disclosure relates to an apparatus embodied in order to correct efficiently changing of measured temperature value in a temperature sensor according to influence of irradiance. A radiosonde related an exemplary embodiment of the present disclosure includes a first temperature sensor; a second temperature sensor having higher emission ratio than the first temperature sensor; and a measuring unit in order to calculate corrected temperature value, but the radiosonde and the third temperature sensor are installed in a chamber before flying of the radiosonde, a first temperature change detected by the first temperature sensor by output light in a sunlight simulator and a second temperature change detected by the second temperature sensor are induces, compensation factors may be derived using the first temperature change, the second temperature change, and temperature value measured by the third temperature sensor.

The invention discloses a method and a device for inverting seaborne atmospheric precipitation by a microwave imager. The method comprises the following steps of obtaining satellite observation brightness temperature data to be inversed, and carrying out preprocessing, establishing an optimal nonlinear regression equation by using an evolutionary algorithm, and inputting the preprocessed satelliteobservation brightness temperature data to be inversed into the optimal nonlinear regression equation for inversion to obtain the total water vapor amount of the preset area. According to the method,based on satellite observation brightness temperature data and total water vapor amount of radiosonde, an optimal nonlinear regression equation is automatically determined by utilizing an evolution algorithm, and the problem that an equation form of the regression equation needs to be empirically given after a large amount of exploration in a current statistical algorithm is solved.