• WordNet 3.6
    • n microbalance balance for weighing very small objects
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Century Dictionary and Cyclopedia
    • n microbalance A delicate balance for weighing 1 milligram or less. It consists of a capillary glass tnbe 30 centimeters long and 0.5 millimeter thick, bent at a right angle so as to make one part a pointer 9 centimeters long. The tnbe is attached, by water-glass, to a quartz fiber 5 centimeters long and fastened to a pronged support. The instrument is thus built on the principle of the torsion balance. A hooked platinum wire melted into the end of the glass beam carries a platinum basket of 20 milligrams weight which holds the objects to be weighed. The deflection of the pointer is read from a scale, and platinum-wire riders serve as weights. The mechanism was devised by Nernst.
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In science:

Clean and ordered BaF2(111) substrates were first prepared by annealing at 700 ◦C for 10 minutes then cooled down and kept at 70 ◦C, on which the epitaxial growth of Bi was followed while the evaporation rate was monitored by a quartz microbalance.
Bi(111) thin film with insulating interior but metallic surfaces
A group of thirty test masses was weighed (in sets of five or six) with a microbalance to determine the average mass.
Constraints on Yukawa-Type Deviations from Newtonian Gravity at 20 Microns
The SEM showed the test masses to be slightly larger than intended (as confirmed by the microbalance measurements), with a rounded face where the evaporated gold was polished.
Constraints on Yukawa-Type Deviations from Newtonian Gravity at 20 Microns
Left ordinate: in atomic mass units per incident pro jectile (as measured by the quartz crystal microbalance).
Collisions of Slow Highly Charged Ions with Surfaces