: a balance having a platform on which objects are weighed. — called also platform scale.
What are the parts of a balance scale?
Balance scales work like a seesaw. They have two main parts: the beam and the fulcrum.
How does a platform balance work?
A platform balance is a device that measures the weight of an object using a platform or solid base in conjunction with a series of levers and balances that together calculate the overall mass. These tools are most commonly used to weigh objects that are very heavy, bulky, or awkward.
What is the function of platform balance?
A platform balance is a laboratory apparatus which is used for weighing objects. The balance has two platforms either mounted on or suspended from a cross-arm, and weights are placed on one platform until they balance the object being weighed.
Who invented platform balance?
Following the invention of the spring scale by British balance-maker Richard Salter, in around 1770, the weighing balance no longer relied on counter weights. The spring scale used the effects of gravity to calculate weight, as defined in Hooke’s Law which determines the displacement of force on the spring.
What is a top loading balance?
A top loading balance (also referred to as toploader balance) is among the most common types of weight measuring scales used in the laboratory. Compact top loading balances are calibrated with fully automatic time and temperature controlled adjustment, an internal or external weight, or clock calibration.
How many types of balance are there?
There are three different types of balance: symmetrical, asymmetrical and radial.
What is the use of balance?
Balance, instrument for comparing the weights of two bodies, usually for scientific purposes, to determine the difference in mass (or weight).
Which balance is used to measure the weight of a body?
beam balance
The beam balance is a device used for the determination of the mass of a body under gravitation. Beam balance is used for high precision measurements like masses up to 250g, it consists of a pair of scale pans one at each end of a rigid beam.
What is a platform balance and how is it used?
Platform balance is a device that weights object that has a flat plate mounted above a balance beam. It is used to weight heavy objects, it also gives the exact weight of an object that is being weight and it allows large weight to be accommodated in a small space. What is the function of a platform balance? It is a weighing machine.
Where are the parts of the triple beam balance?
Base and Pan. The solid metal platform which supports the rest of the parts of the triple beam balance is known as the base. It provides stability to the apparatus while the measurements are being taken. The pan is located on one side of the apparatus and rests on top of the base. It is where the object to be weighed is placed.
What are the different types of balances and scales?
Another application for the scale is to place two items on each scale and adjust one side until both pans are leveled. This is convenient in applications such as balancing tubes or centrifugation where two objects must be the exact same weight. Platform Scale This type of scale uses a system of multiplying levers.
How is the reference position of a balance determined?
The pan is the area on a balance where an object is placed to be weighed. Leveling feet are adjustable legs that allow the balance to be brought to the reference position. The reference position is determined by the spirit level, leveling bubble, or plumb bob that is an integral part of the balance.
