Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

1

Ou

S/O

Brevets

S/O

Description générale

styrofoam casing/ synthetic and metal parts/ synthetic tape

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

49,5 cm

Largeur

S/O

Hauteur

S/O

Épaisseur

S/O

Poids

S/O

Diamètre

4,7 cm

Volume

S/O

Lexique

Groupe

Météorologie

Catégorie

Mesure de vitesse et direction du vent en altitude

Sous-catégorie

S/O

Fabricant

Ou

Inconnu

Pays

Inconnu

État/province

Inconnu

Ville

Inconnu

Contexte

Pays

Canada

État/province

Inconnu

Période

This instrument was apparently in use for 20 years (Ref. 3)

Canada

An example of a radiosonde of a type used by the Meteorological Service of Canada for research and air pollution studies (Ref. 1). Part of a large collection of meteorological instruments acquired from the Meteorological Service of Canada (previously Atmospheric Environment Service) by the CSTM since 1967. MSC is the government agency responsible for collecting and disseminating meteorological data and forecasts in Canada. It was founded in 1871 in Toronto where it is still headquartered. The MSC was originally on the University of Toronto downtown campus but moved to Downsview in 1971 on land owned by UofT. The headquarters houses laboratories, research facilities and calibration and instrument maintenance facilities (now largely contracted out).

Fonction

A device lifted by balloon into the upper atmosphere to measure temperature, humidity, and air pressure and transmit the data to earth. Wind speed and direction can be determined by tracking the radiosonde.

Technique

An example of a very small radiosonde used for research purposes. The AER AQI 403 mHz Minisonde was a type of radiosonde was only used for research and air pollution studies not operational soundings. Beside being less expensive than a radiosonde, it only required a 6" pilot balloon which used much less gas than a regular radiosonde balloon. The thermistor based circuit modulated the 403 mHz transmitter which was converted to temperature on the recorder of the surface receiving station. The vertical height was determined from the ascent rate of the balloon (Ref. 1).

Notes sur la région

Inconnu

Détails

Marques

raised lettering on casing reads 'ERO AQI'

Manque

appears complete

Fini

white casing/ metallic antenna and parts/ red tape

Décoration

S/O