Balance

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OBJECT TYPE
PRIMARY/INTERFEROMETER/REMOTE
DATE
1980–1989
ARTIFACT NUMBER
2001.0003.001
MANUFACTURER
NRC
MODEL
Unknown
LOCATION
Ottawa, Ontario, Canada

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
8
AKA
N/A
Patents
N/A
General Description
ORIGINAL BRASS BALANCE; BRASS, STEEL? & METAL PARTS; GLASS & SYNTHETIC PARTS; MOUNTED IN ALUMINUM CASING ON WOOD TABLE (CSTM CONSTRUCT)

Dimensions

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

Length
63.0 cm
Width
40.0 cm
Height
67.0 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Metrology
Category
Mass/weight
Sub-Category
N/A

Manufacturer

AKA
NRC
Country
Canada
State/Province
Ontario
City
Ottawa

Context

Country
Canada
State/Province
Ontario
Period
CIRCA 1938-1997, IN VARIOUS INCARNATIONS
Canada
THIS WAS CANADA'S PRIMARY BALANCE USED TO MAKE KILOGRAM MASS COMPARISONS FROM TIME IT WAS COMPLETED UNTIL IT WAS DECOMMISSIONED IN 1997. IT WAS THUS MOST IMPORTANT PIECE OF EQUIPMENT FOR MASS MEASUREMENT AS ALL MASS STANDARDS IN CANADA WERE REFERENCED BACK TO RESULTS ACHIEVED WITH IT. IT WAS ALSO PART OF INTERNATIONAL STANDARDS COMPARISON NETWORK.
Function
PRIMARY BALANCE USED TO MAKE KILOGRAM MASS COMPARISONS TO VERIFY MASS STANDARDS.
Technical
UNIQUE APPARATUS DESIGNED BY NRC TO MEET STRINGENT REQUIREMENTS OF MODERN MASS DETERMINATIONS, CAPABLE OF MEASURING KILOGRAM TO BETTER THAN 0.02-0.03MG. THIS WAS ACHIEVED BY AUTOMATING PROCESS OF MOVING MASSES & WEIGHTS, USING LASER TO READ & GRAPH MEASUREMENTS, COMPUTER CONTROL.
Area Notes
Unknown

Details

Markings
NO ORIGINAL MARKINGS VISIBLE; PARTS MARKED "107021A LINEAR INTERFEROMETER/ 1944A01618/ HEWLETT-PACKARD", "10707A BEAM BENDER/ 4A01006/ HEWLETT-PACKARD", "10707A BEAM BENDER/ HEWLETT-PACKARD"
Missing
UNKNOWN From CA of 06/04/2001 by Myles Bailey: No - Removed from original site and had not been changed since use.
Finish
ORIGINAL PARTS LACQUERED BRASS; UNLACQUERED BRASS & BLACK PAINTED PARTS; PLATED & BRUSHED METAL PARTS; UNFINISHED WOOD
Decoration
MOTTLED PATTERN ON ORIGINAL BRASS BASE

CITE THIS OBJECT

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

NRC, Balance, between 1980–1989, Artifact no. 2001.0003, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2001.0003.001/

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