General Information

Serial #

RAP 91-062-079

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

PLASTIC & CARDBOARD CASING/ PLASTIC TRANSMITTER CONE/ SYNTHETIC & METAL WORKING PARTS/ CORD/ HYGRISTOR IN METAL CAN

Dimensions

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

Length

17.1 cm

Width

13.0 cm

Height

25.0 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

VALCOM

Country

Canada

State/Province

Ontario

City

Guelph

Context

Country

Canada

State/Province

Unknown

Period

C.1990

Canada

A CANADIAN MADE RADIOSONDE, MADE FOR THE ATMOSPHERIC ENVIRONMENT SERVICE.

Function

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

Technical

AN EXAMPLE OF A LATE 1980S-EARLY 1990S STYLE OF RADIOSONDE, CONTROLLED BY A BAROSWITCH WHICH HAS AN ANEROID SENSOR & ALSO SWITCHES IN THECERAMIC ROD THERMISTOR & ELECTROLYTIC PLASTIC STRIP HYGRISTOR, & REFERENCE RESISTORS. THE RADIOSONDE APPEARS VERY LITTLE CHANGED FROM THOSE OF THE 1970S & 1980S

Area Notes

Unknown

Details

Markings

BLUE LETTERING ON FRONT READS 'A/ VIZ/ PRODUCT/ MANUFACTURED BY/ Valcom LTD./ GUELPH, ONTARIO, CANADA'/ WHITE LABEL ON SIDE PRINTED IN BLUE READS 'RAP 91-062-079'/ WHITE & BLUE LABEL ON SIDE READS 'VIZ ACUU-LOK/ TEMPERATURE SENSOR/ Lock-in value at +30 Degrees Celsius/ 14263 OHMS 73.16 R.D./ LB/ CAUTION/ The R.D. Lock-in value is only applicable/ when used with ACCU-LOC radiosondes./ LOT 2442/ VIZ Manufacturing Co. Philadelphia, PA 19144 U.S.A.'/ BLUE PRINTED FRENCH & ENGLISH INSTRUCTIONS TO FINDER

Missing

APPEARS COMPLETE. HYGRISTORS WERE SUPPLIED SEPARATELY BY MFR. & USED WITH RADIOSONDE AS REQUIRED. THIS HYGRISTOR WAS ASSIGNED TO 940141 AT NMST.

Finish

WHITE CASING/ WHITE CORD/ MULTICOLOURED SYNTHETIC/ METALLIC PARTS

Decoration

MOULDED LETTERING ON TOP READS 'ATMOSPHERIC/ ENVIRONMENT SERVICE/ CANADA/ RADIOSONDE'/ TYPED LABEL ON CAN READS 'VIZ HUMIDITY SENSOR/ 1286-162 ACCU-LOK/ LOT: 3706 AUG 91/ LOCK-IN 13532 74.20 RD/ CALIBRATED AT 33% RH 25C'