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OBJECT TYPE
ELECTRONIC/MICRO/SILICA BEAM
DATE
1949
ARTIFACT NUMBER
1996.0198.001
MANUFACTURER
NRC
MODEL
CARMICHAEL MK.I
LOCATION
Chalk River, Ontario, Canada

More Information


General Information

Serial #
14
Part Number
1
Total Parts
2
AKA
N/A
Patents
N/A
General Description
NON-FERROUS METAL BASE, FRAME, WORKING PARTS/ SYNTHETIC POWER CORD, PARTS/ GLASS OPTICS, PARTS

Dimensions

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

Length
44.0 cm
Width
42.5 cm
Height
39.5 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
Chalk River

Context

Country
Canada
State/Province
Ontario
Period
C. 1950 +
Canada
EXAMPLE OF QUARTZ MICROBALANCE DESIGNED & CONSTRUCTED BY HUGH CARMICHAEL OF NRC'S CHALK RIVER NUCLEAR RESEARCH LABORATORY,FOR CANADIAN & BRITISH ATOMIC ENERGY PROJECTS IN LATE 1940'S. NO. 14 WAS ONE OF LAST OF SERIES & WAS MOSTLY USED AT CHALK RIVER; LAST LOCATION WAS DEEP RIVER COSMIC RAY MONITOR STATION. (REF. 2)
Function
HIGHLY ACCURATE MASS MEASURING INSTRUMENT USE TO PRECISELY MEASURE MINITE QUANTITIES OF MATERIALS. FOR EXAMPLE, QUARTZ CRYSTAL MICROBALANCE CAN MEASURE FRICTION BETWEEN ITS ELECTRODE & LAYER OF MATERIAL ONE OR TWO ATOMS THICK DEPOSITED ON ELECTRODE.
Technical
EXAMPLE OF NRC'S CARMICHAEL MARK I MICROBALANCE WHICH MADE USE OF FUSED SILICA SUSPENSION INSTEAD OF KNIFE EDGES. ITS SPECIALLY DESIGNED PROTECTIVE HOUSING IN FORM OF SOLID BLOCK PREVENTED THERMAL CONVECTION. MARK II VERSION OF SAME INSTRUMENT (WITH IMPROVEMENTS) WAS MADE BY BRITISH FIRM HILGER & WATTS OF LONDON (REF. 1).
Area Notes
Unknown

Details

Markings
INCISED PLATE READING "QUARTZ MICROBALANCE/ NATIONAL RESEARCH COUNCIL/ CHALK RIVER ONTARIO-CANADA/ SERIAL No. 14"/ LABEL READING "Property of/Propriete du/ NRCC/CNRC/ 199725"/ BLACK INCISED SCALE MARKINGS ON BUBBLE LEVELS/ WHITE INCISED SCALE ON OPTICAL ASSEMBLY WHEREIN 1 DIV.= 100 GRADES
Missing
APPEARS COMPLETE
Finish
FLAT GREY PAINTED BASE & FRAME/ BLACK ENAMEL PAINTED & PLATED OPTICAL ASSEMBLY/ COLOURLESS & TRANSPARENT OPTICS, GLASS PARTS/ BRUSHED, BRASS COLOURED, & METALLIC PARTS/ BROWN SYNTHETIC
Decoration
N/A

CITE THIS OBJECT

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

NRC, Scale, 1949, Artifact no. 1996.0198, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1996.0198.001/

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