Definition of a triple beam balance
What is the triple beam balance?
The triple beam balance is an instrument used to measure mass very precisely. Such devices typically have a reading error of ±0.05 grams. Its name refers to its three beams, where the middle beam is the largest, the far beam of medium size, and the front beam the smallest.
Why is triple beam balance used?
The triple beam balance is used in a science classroom setting to measure the mass of the small object, not exceeding 610 grams. Counter masses are used to balance both sides of the balance to indicate the mass of the object. The balance has various parts that help in determining the mass of an object.
What is the function of a beam balance?
The beam balance is used for calibrating masses in the range between 10 mg and 1 Kg. The measurement resolution and accuracy achieved depends on the quality and sharpness of the knife edge that the pivot is formed from.
How do you carry a triple beam balance?
Carry the balance with both hands and keep it horizontal. Do not place anything hot directly on the balance pan. Never pour chemicals directly on the balance pan. Place balance on a level, sturdy surface and away from heavy traffic.
How does a triple beam balance measure weight?
What units does a triple beam balance measure?
The units on a triple beam balance are given in grams instead of ounces or pounds. The symbol for gram is g. The metric system adds prefixes to these base units to make smaller or greater measurements.
Who invented the triple beam balance?
Frank Aronson
The triple beam balance—essentially a platform scale that can sit on a laboratory bench—has been enormously popular for well over a century. The form originated with Frank Aronson, the long-time chief designer for the Central Scientific Company.
What are the types of balances?
There are actually three types of balances: the equal arm balance, the unequal arm balance, and the spring balance. The equal arm balance is named such because the distance between the pivot and each end of the bar are equidistant, or separated by an equal length from the pivot point.
What are the important parts of the triple beam balance?
While the designs of various triple beam balance models differ slightly, they have two basic components in common: the base and the pan. The base is a long metal platform which supports the rest of the apparatus. When moving the triple beam balance, place your hands on either side of the base for stability.
What units does a triple beam balance measure?
The units on a triple beam balance are given in grams instead of ounces or pounds. The symbol for gram is g. The metric system adds prefixes to these base units to make smaller or greater measurements.
What is the first step when using a triple beam balance?
What is the first step when using a Triple-Beam Balance? 1. First, zero or calibrate the balance. It is zeroed if the pointer is at the zero when the pan is empty, and the riders are all the way to the left on the beams.
How do you read a triple beam balance in grams?
The boldface numbers on this beam are grams and the tick marks between the boldface numbers indicate tenths of grams. To find the mass of the object on the pan, simple add the numbers from the three beams. As with a ruler, it is possible to read the front scale to the nearest half tick mark.
What are the types of balances?
There are actually three types of balances: the equal arm balance, the unequal arm balance, and the spring balance. The equal arm balance is named such because the distance between the pivot and each end of the bar are equidistant, or separated by an equal length from the pivot point.
Who invented the triple beam balance?
Frank Aronson
The triple beam balance—essentially a platform scale that can sit on a laboratory bench—has been enormously popular for well over a century. The form originated with Frank Aronson, the long-time chief designer for the Central Scientific Company.
How do you calculate beam balance?
We used the formula: effort x length of effort arm = load x length of load arm for all three beam balance set-ups.