Electronic Balances and Effect of Gravity

Chapter
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 155)

Abstract

A balance or mass comparator compares the gravitational forces experienced by a body and the standard weight of known mass. Assuming that acceleration due to gravity does not change within the distance between the actions points of two forces, its effect cancels out and we get the mass of a body in terms of the mass of the standard weight. Hence, any transducer, which can react to gravitational force, can be used as a balance. In an electronic balance, the gravitational force produces electrical signal, which on processing indicates the mass of a body. In general, electronic balances may be divided into two groups: (1) hybrid and (2) fully electronic. Hybrid balances use a mix of mechanical and electromagnetic forces. These are sometimes called electromechanical balances. The fully electronic balances use only electronic circuitry to convert gravitational force to mass. In hybrid balances, the gravitational force is reduced by mechanical means and the current generated due to the differential gravitational force is either measured directly or measured by the current required to restore the equilibrium.

Keywords

Significant Error Class IIII Gravitational Force Electromagnetic Force Electronic Balance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.DelhiIndia

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