General Information

Serial #

11975

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

CARDBOARD CASING WITH PLASTIC PARTS/ SYNTHETIC, METAL, & GLASS WORKING PARTS/ CORD/ FABRIC STRAP WITH METAL RING

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

18.3 cm

Width

11.8 cm

Height

21.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Upper air pressure, temperature & humidity measurement

Sub-Category

N/A

Manufacturer

AKA

Bendix

Country

United States of America

State/Province

Maryland

City

Baltimore

Context

Country

Canada

State/Province

Unknown

Period

C. 1961

Canada

AN AMERICAN-MADE AUDIO-MODULATED RADIOSONDE MADE FOR THE CANADIAN METEOROLOGICAL SERVICE, USED CONCURRENTLY WITH THE LAST CANADIAN TIME-CYCLE RADIOSONDES.

Function

DEVICE LIFT INTO UPPER ATMOSPHERE BY BALLOON TO MEASURE TEMPERATURE, HUMIDITY, & AIR PRESSURE & TRANSMIT DATA TO EARTH. WIND SPEED & DIRECTION CAN BE DETERMINED BY TRACKING RADIOSONDE.

Technical

AN EARLY 1960'S STYLE OF RADIOSONDE CONTROLLED BY A BAROSWITCH, WHICH HAS AN ANEROID SENSOR & ALSO SWITCHES IN THE CERAMIC RODTHERMISTOR (TEMPERATURE SENSOR) & ELECTROLYTIC PLASTIC STRIP HUMIDITY SENSOR, &REFERENCE RESISTORS. THESE ELEMENTS ARE HOUSED WITHIN A VENTED, UNSHIELDED CARDBOARD CASING.

Area Notes

Unknown

Details

Markings

BLUE LETTERING ON FRONT READING 'THE METEOROLOGICAL BRANCH/ DEPARTMENT OF TRANSPORT/ CANADA/ RADIOSONDE/ SERIAL NO. 11975/ FRONT/ RAY SONDE/ THE Bendix CORPORATION/ FRIEZ INSTRUMENT DIVISION' WITH PATENT INFO./ BLACK 'SEP 12 1961/ ACCEPTED' STAMPED INSIDE FLAP/ RED HANDWRITTEN '1961' ON FRONT/ BLACK IMPRESSION PRINTED LABEL READING '1961 U.S.A.' ON FRONT

Missing

From CA of 10/25/1993 by Tony Missio: Undetermined

Finish

WHITE CASING, CORD, STRAP/ MULTICOLOURED SYNTHETIC

Decoration

N/A