Galvanometer

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Ingenium, 1995.0398.001
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OBJECT TYPE: D'ARSONVAL/MOVING COIL/MIRROR
DATE: 1960
ARTIFACT NUMBER: 1995.0398.001

MANUFACTURER: Guildline Instruments Ltd.
MODEL: SR 21
LOCATION: Smiths Falls, Ontario, Canada

More Information

General Information

Serial #: 23.782
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: WOOD OR WOOD PRODUCT CASING WITH SYNTHETIC COVERING (MASONITE-TYPE)/ SYNTHETIC SCREEN WITH SCALE/ METAL & SYNTHETIC CONTROLS & WORKING PARTS

Dimensions

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

Length: 29.0 cm
Width: 33.0 cm
Height: 18.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Energy-electric
Category: Measurement
Sub-Category: N/A

Manufacturer

AKA: Guildline
Country: Canada
State/Province: Ontario
City: Smiths Falls

Context

Country: Canada
State/Province: Ontario
Period: Unknown
Canada: EXAMPLE OF EQUIPMENT USED AT LARGEST RESEARCH INSTITUTION IN CANADA DURING PERIOD OF ITS MOST RAPID GROWTH, GREATEST PRODUCTIVITY & DURING WHICH IT DEVELOPED WORLD RENOWNED REPUTATION.
Function: D'ARSONVAL GALVANOMETER IS DEVICE USED TO MEASURE DIRECT ELECTRIC CURRENT, BY MEASURING MOVEMENT OF WIRE COIL SUSPENDED BY THIN METALLIC RIBBON IN RELATION TO FIXED MAGNET WHEN CURRENT APPLIED TO COIL. THIS VERSION USES MOVING COIL & MIRROR ARRANGEMENT WITH LAMP TO REFLECT ON FRONT VIEWING SCREEN.
Technical: ANCESTORS OF MOVING COIL INSTRUMENTS WERE 'SIPHON RECORDER' DEV'D BY WILLIAM THOMSON (1867) FOR TELEGRAPH INDUSTRY & 'FISHBONE GALVANOMETER' INVENTED BY MARCEL DEPREZ (1880). JACQUES D'ARSONVAL SUGGESTED FIXING 'FISHBONE' IN DEPREZ'S INSTRUMENT & MAKING ITS COIL MOVEABLE... (SEE COMPLETE WS IN O:DRIVE SUPP.INFO.)
Area Notes: Unknown

Details

Markings: PLATE READING "GALVANOMETER/ TYPE SR 21/ NO. 23.782/ GUILDLINE INSTRUMENTS LTD./ SMITHS FALLS, ONT."/ INCISED WHITE MARKINGS FOR SWITCH READING 1/1,000, 1/100, 1/10, 1/1/ BLACK MARKINGS & NUMBERING ON SCREEN FOR 12 TO 1 & 1 TO 12
Missing: COMPLETE From CA of 01/31/2002 by Matthew Bruce: No - appears complete
Finish: BROWN SIMULTAED WOOD GRAIN FINISH ON LAMINATE/ WHITE SCREEN/ BLACK SYNTHETIC KNOBS, POWER CORD, PARTS/ PLATED & COPPER COLOURED PARTS
Decoration: N/A

CITE THIS OBJECT

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

Guildline Instruments Ltd., Galvanometer, after 1960, Artifact no. 1995.0398, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1995.0398.001/

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