What are the uses of Double Beam Balance?
A balance (also balance scale, beam balance or laboratory balance) is used to measure the mass of an object. It was the first mass measuring instrument invented. In its traditional form, it consists of a pivoted horizontal lever of equal length arms, called the beam, with a weighing pan, also called scale (hence the term “scales”) scalepan, or bason (obsolete [1]) suspended from each arm. The unknown mass is placed in one pan, and standard masses are added to the other pan until the beam is as close to equilibrium as possible. In precision balances, a slider weight is moved along a graduated scale. The slider position gives a fine correction to the weight value. Although a balance technically compares weights, not masses, the weight of an object is proportional to its mass, and the standard weights used with balances are usually labeled in mass units. Traditional balanceBalances are used for precision mass measurement, because unlike spring scales their accuracy is not affected by diff
