Psychrometer

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Ingenium, 1988.0936.001
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OBJECT TYPE
SLING/RIGID HANDLE/FAHREN
DATE
Unknown
ARTIFACT NUMBER
1988.0936.001
MANUFACTURER
Casella
MODEL
Unknown
LOCATION
London, England

More Information


General Information

Serial #
5951
Part Number
1
Total Parts
2
AKA
N/A
Patents
N/A
General Description
WOOD FRAME/ SYNTHETIC HANDLE, WATER RESERVOIR/ GLASS THERMOMETERS/ COTTON WICKS/ MERCURY/ LEATHER CASE WITH METAL PARTS

Dimensions

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

Length
22.8 cm
Width
16.5 cm
Height
3.5 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Forestry
Category
Silviculture
Sub-Category
N/A

Manufacturer

AKA
Casella
Country
England
State/Province
Unknown
City
London

Context

Country
Canada
State/Province
Unknown
Period
Unknown
Canada
A BRITISH-MADE METEOROLOGICAL INSTRUMENT USED BY THE CANADIAN FORESTRY SERVICE TO MONITOR ATMOSPHERIC-CLIMATIC CONDITIONS.
Function
AN INSTRUMENT FOR DETERMINING ATMOSPHERIC HUMIDITY BY COMPARING THE DIFFERENT READINGS FROM TWO THERMOMETERS, ONE WITH A BULB KEPT WET. THE INSTRUMENT IS VENTILATED BY WHIRLING IT THROUGH THE AIR.
Technical
AN EXAMPLE OF A SIMPLE, PORTABLEHUMIDITY MEASURING INSTRUMENT. IT IS TYPICAL OF BRITISH (& CANADIAN) PSYCHROMETERS IN HAVING A RIGID HANDLE & HEAVY FRAME PROTECTING THE THERMOMETERS. THIS SPECIMEN HAS A WATER RESERVOIR BUILT INTO THE END OF THE FRAME, INTO WHICH THE WET BULB WICK DIPS, KEEPING IT CONTINUALLY MOISTENED.
Area Notes
Unknown

Details

Markings
BLACK STAMPED 'CASELLA/ LONDON' & 'MADE IN ENGLAND'/ THERMOMETERS BACKS MARKED 'Casella London' IN BLACK SCRIPT & '5921' OR '6029'; BLACK MARKINGS & SCALES ON FRONTS FOR 2O TO 120 F./ CASE STAMPED 'MADE IN ENGLAND'
Missing
N/A
Finish
VARNISHED WOOD/ BLACK SYNTHETIC/ WHITE COTTON/ CLEAR GLASS WITH WHITE BACKS/ METALLIC PARTS/ BROWN LEATHER
Decoration
N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Casella, Psychrometer, Unknown Date, Artifact no. 1988.0936, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1988.0936.001/

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