Scales are used to weigh various items. The main differences between them are the type of construction, the precision and the field of application. Some scales are able to weigh the same type of goods, even if the name propagates something else.
The most common types of scales are:
Beam scales
An ancient type of contruction of a scale. It has two bowls, where the goods are being compared or counterbalanced with weights.
Digital scales
Nowadays the digitization of household products and other electronical devices is inexorably. A modern piece of weighting electronic has a built in LCD-display in most cases. This makes working a lot easier, because values can be detected with maximum precision. Through the popularization of digital scales, they have become very cheap and are affordable for everyone who is in need of a precise weighing tool. Digital scales have found their homes in many different production facilities, offices and hobby basements.
Spring scales
Spring scales are often used in physics class to to demonstrate the effects of gravity. The construction consists of a tube, a long spring and a hook. The item that has to be weighted must be attached to the hook. Then the spring gets pulled out proportional to the items weight. In an inactive position the weight can now be read off the marked display.
Kitchen scales
For weighing ingredients these scales are necessary. They have a dishwasher-safe bowl where goods like flour, sugar and spices can be weighed. Every household owns one nowadays. They are digital or analog, both models work for the allday kitchen usage.
Bathroom scales
When weighing a person, a bathroom scale is needed. Usually its place is in the bathroom, that's why the name is like that. It can weigh light persons and really heavy persons too. Everybody has the need to find out his weight nowadays because of fashion ideals and diets.
Stamp scales
Specially designed balances for weighing stamps. They are used to calculate the shipping cost for letters. Their field of usage is reduced to the post office. You can divert them from their intended use for sure thus it can weigh all lightweight items like paper, fixing pins and small amounts of liquid.