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ID number:  BIRRC-P0882
Institution:  Research and Cultural Collections
Named collection:  Historic Physics Collection
Artist / Maker:  Oertling
Title / Object name:  Microbalance
Object type:  Balance
Place made:  London
Date made:  Probably 1980s
Materials:  Metal balance in grey-painted wooden case with glass panels
Measurements:  40 x 30 x 50 cm

A high quality conventional balance designed for weighing small objects with a sensitivity of 1µg. Masses of 0.1 to 20g are added to the scale pan, and masses of 0.01 to 0.10g are added as rings using the knob at top right. A rider positioned along the horizontal beam gives masses up to 10mg in steps of 0.1mg. The final resolution of 1µg is achieved by projecting a scale showing the deflection of the beam onto a screen.

Inscriptions / Translations:  Oertling
Model No. 142
Serial No. 734177
Capacity 20 g

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