/ray"dee oh sond'/, n. Meteorol.
an instrument that is carried aloft by a balloon to send back information on atmospheric temperature, pressure, and humidity by means of a small radio transmitter. Cf. rawinsonde
[1935-40; RADIO- + SONDE]

* * *

      balloon-borne instrument for making atmospheric measurements, such as temperature, pressure, and humidity, and radioing the information back to a ground station. Special helium-filled meteorological balloons made of high-quality neoprene rubber are employed for elevating the radiosonde to very high altitudes of around 30,000 m (100,000 feet); maximum altitude for balloon-borne radiosondes is about 50,000 m.

      Two basic systems are used for collecting data and coding it for transmittal. In the mechanical type, the thermometer is usually a bimetallic strip or a stretched wire, the humidity element a hair or goldbeater's skin hygrometer, and the pressure system an aneroid type of capsule. In the electrical change type system, a mechanical bellows, responsive to changes in atmospheric pressure, operates a switching arrangement to alternately transmit measurements of temperature and humidity; the temperature is indicated by a temperature-sensitive resistor and the humidity by a humidity-sensitive arrangement consisting of a strip of polystyrene coated with lithium chloride. Wind velocity can be determined by tracking the radiosonde with a theodolite or with an automatic tracking antenna.

* * *

Universalium. 2010.

Look at other dictionaries:

  • radiosonde — [ radjosɔ̃d ] n. f. • 1935; de radio et sonde ♦ Appareil émetteur placé dans un ballon sonde et transmettant au sol des renseignements météorologiques. ● radiosonde nom féminin Instrument emporté en ballon dans l atmosphère, muni de dispositifs… …   Encyclopédie Universelle

  • radiosonde — ☆ radiosonde [rā′dē ō sänd΄ ] n. [Fr < radio (see RADIO) + sonde, a sounding line < sonder, to SOUND4] a compact package of meteorological instruments and a radio transmitter, usually carried aloft by a small balloon to measure and transmit …   English World dictionary

  • Radiosonde — A GPS sonde, approx 220 × 80 ×75 mm (8.7 × 3.1 × 3 in) (with grounding station in background, used to perform a ground check and also recondition the humidity sensor) A radiosonde (Sonde is French for probe) is a unit for use in weather balloons… …   Wikipedia

  • Radiosonde — Wasserstoffballon mit Reflektor Eine Radiosonde dient der Meteorologie und Aerologie zur Messung von Parametern der Erdatmosphäre bis in Höhen von etwa 20 bis 30 km (Stratosphäre). Sie wird von einem Wetterballon getragen und übermittelt die …   Deutsch Wikipedia

  • Radiosonde — Pour les articles homonymes, voir Radiosonde (homonymie). Une radiosonde de type LORAN : sonde de température (thermistor) visible en haut à gauche et antenne en bas …   Wikipédia en Français

  • Radiosonde — Ra|dio|son|de 〈f. 19〉 Gerät zur meteorolog. Beobachtung, das aus einem Ballon, Messgeräten für Luftdruck, Temperatur u. Feuchtigkeit u. einem Sender besteht, der die ermittelten Werte zur Erde funkt * * * Ra|dio|son|de, die (Technik, Meteorol.):… …   Universal-Lexikon

  • Radiosonde — radiozondas statusas T sritis Standartizacija ir metrologija apibrėžtis Aerologinis įtaisas, matuojantis atmosferos slėgį, oro temperatūrą, santykinį drėgnį ir automatiškai radijo bangomis perduodantis šiuos parametrus iš įvairių atmosferos… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Radiosonde — radiozondas statusas T sritis fizika atitikmenys: angl. radio wind flight; radioballoon; radiosonde vok. Funksonde, f; Radiosonde, f rus. радиозонд, m pranc. radiosonde, f …   Fizikos terminų žodynas

  • Radiosonde — radiozondas statusas T sritis ekologija ir aplinkotyra apibrėžtis Aerologinis įtaisas, matuojantis atmosferos slėgį, oro temperatūrą, santykinį drėgnį ir automatiškai radijo bangomis perduodantis šiuos parametrus iš įvairių atmosferos aukščių.… …   Ekologijos terminų aiškinamasis žodynas

  • radiosonde — A radio transmitter used in conjunction with a balloon. It transmits data on temperature, pressure, and humidity. A radiosonde balloon can attain a height of approximately 65,000 ft (20 km) with small balloons and 115,000 ft (34 km) with large… …   Aviation dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.