Galvanometer

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Ingenium, 1970.0492.001
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OBJECT TYPE
DIFFERENTIAL/MAGNETIC COIL/MOVING IRON/ASTATIC
DATE
1885
ARTIFACT NUMBER
1970.0492.001
MANUFACTURER
Siemens Bros. & Co.
MODEL
1A
LOCATION
London, England

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
WOOD CASING/ METAL FACE & POINTER/ GLASS/ BRASS

Dimensions

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

Length
16.0 cm
Width
9.0 cm
Height
18.0 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Communications
Category
Telegraphy
Sub-Category
N/A

Manufacturer

AKA
Siemens
Country
England
State/Province
Unknown
City
London

Context

Country
Canada
State/Province
Ontario
Period
B 1922
Canada
USED AT DOMINION OBSERVATORY
Function
AN INSTRUMENT FOR DETECTING OR MEASURING A SMALL ELECTRIC CURRENT BY MOVEMENTS OF A POINTER
Technical
MOVING IRON GALVANOMETERS WERE 1ST DISCUSSED BY G.C. PAGE (1845) BUT DIDN'T TAKE OFF COMMERCIALLY 'TIL 1880S. IDEA IS SIMILAR IN PRINCIPLE TO MARCEL DEPREZ'S "FISHBONE GALVANOMETER". A PIECE OF SOFT IRON WAS PUT IN A SOLENOID COIL BETWEEN POLES OF A POWERFUL PERMANENT MAGNET. (SEE COMPLETE WS IN S.I. & O:DRIVE S.I.)
Area Notes
Unknown

Details

Markings
GRADUATED SCALE ON FACE: '70 TO 0' & '0 TO 70'/ MANUFACTURER: 'SIEMENS BROS & CO./ LONDON'
Missing
N/A
Finish
VARNISHED WOOD CASING
Decoration
BLACK SCALE MARKINGS, MANUFACTURER & POINTER

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

Siemens Bros. & Co., Galvanometer, circa 1885, Artifact no. 1970.0492, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1970.0492.001/

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