Galvanometer
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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
CITE THIS OBJECT
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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