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