Galvanometer

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Ingenium, 1992.2397.001
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OBJECT TYPE: REFLECTING
DATE: Unknown
ARTIFACT NUMBER: 1992.2397.001

MANUFACTURER: Greeley, E.S. & Co.
MODEL: Unknown
LOCATION: New York, New York, United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: BRASS CASING & STAND/ SYNTHETIC PARTS/ FABRIC? COVERED WIRING/ GLASS

Dimensions

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

Length: 21.6 cm
Width: 20.0 cm
Height: 31.8 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Physics
Category: Demonstration & teaching equipment
Sub-Category: N/A

Manufacturer

AKA: Greeley
Country: United States of America
State/Province: New York
City: New York

Context

Country: Unknown
State/Province: Unknown
Period: Unknown
Canada: PART OF LARGE & VARIED COLLECTION OF OVER 7500 ELECTRICAL ITEMS ACQUIRED & DOCUMENTED BY ONTARIO HYDRO IN 1960S. COLLECTION WAS THOUGHT TO BE LARGEST & MOST COMPREHENSIVE IN CANADA & WAS DONATED TO NMST IN 1992.
Function: INSTRUMENT FOR DETECTING EXISTENCE & DETERMINING STRENGTH OF SMALL ELECTRIC CURRENTS.
Technical: REFLECTING OR MIRROR GALVANOMETERS USE BEAM OF LIGHT REFLECTED OFF MIRROR & ON TO SCALE TO PRODUCE READINGS, IN ORDER TO MINIMIZE EFFECTS OF EARTH'S MAGNETIC FIELD. THIS TYPE OF SENSITIVE GALVANOMETER WAS FIRST DEVELOPED BY BRITISH SCIENTISTWILLIAM THOMSON (1824-1907, LATER LORD KELVIN)
Area Notes: Unknown

Details

Markings: INCISED LETTERING ON BACK READS "E.S. GREELEY & CO./ NEW YORK"
Missing: MISSING SHAFT & PARTS
Finish: BRASS COLOURED METAL/ BLACK PAINTED PARTS/ BLACK SYNTHETIC/ GREEN WIRE COVERING/ COLOURLESS TRANSPARENT GLASS
Decoration: N/A

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

Greeley, E.S. & Co., Galvanometer, Unknown Date, Artifact no. 1992.2397, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.2397.001/

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