Galvanometer

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Ingenium, 1992.2382.001
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OBJECT TYPE: ASTATIC/STRING/STUDENT
DATE: Unknown
ARTIFACT NUMBER: 1992.2382.001

MANUFACTURER: Harvard College
MODEL: Unknown
LOCATION: United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: WOOD BASE/ METAL (BRASS?) WORKING PARTS & DIAL/ SYNTHETIC DIAL COVER & PARTS/ PAPER SCALE

Dimensions

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

Length: 17.0 cm
Width: 16.0 cm
Height: 27.5 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: Harvard
Country: United States of America
State/Province: Unknown
City: Unknown

Context

Country: United States of America
State/Province: Maine
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: EXAMPLE OF ASTATIC GALVANOMETER, IN WHICH TWO NEEDLES OF EQUAL SIZE ARE MOUNTED RIGIDLY TOGETHER IN PARALLEL, BUT WITH POLES POINTING IN OPPOSITE DIRECTIONS. THIS ARRANGEMENTNEUTRALIZES EFFECT OF EARTH'S MAGNETIC FIELD (REFS. 2&3). THIS EXAMPLE HAS SUSPENSION STRING MOUNTED WITHIN BRASS TUBE FOR PROTECTION.
Area Notes: Unknown

Details

Markings: BLACK LETTERING ON DIAL READS "HARVARD COLLEGE" & FOR SCALE
Missing: UNKNOWN
Finish: WOOD STAINED BROWN & COATED/ GOLD & COPPER COLOURED METAL/ COLOURLESS TRANSPARENT SYNTHETIC/ WHITE SCALE
Decoration: N/A

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Harvard College, Galvanometer, Unknown Date, Artifact no. 1992.2382, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.2382.001/

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