Table of Contents
What is the difference between triple beam balance and digital balance?
A triple-beam balance is the best all-around mechanical balance with good sensitivity and high capacity. A digital scale is much faster and easier to use than a mechanical balance for weighing out small amounts of chemicals for chemistry.
What is a platform balance?
: a balance having a platform on which objects are weighed. — called also platform scale.
What is sensitivity of a balance?
Sensitivity of a balance. A balance is said to be sensitive when it can register small differences in weight. The balance beam is most sensitive when its center of gravity lies slightly below its rotation axis.
How are the three beams on a triple beam balance different?
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. The difference in size of the beams indicates the difference in weights and reading scale that each beam measures.
What are the differences between a triple beam balance and the top loading balance?
Triple-Beam Balance This type of laboratory balance is less sensitive than a top-loading balance. They are often used in a classroom situation because of ease of use, durability and cost. They are called triple-beam balances because they have three decades of weights that slide along individually calibrated scales.
Why is a platform balance also called double beam balance?
A double beam balance, also called a double pan balance, is a scale that acts like a see-saw and gets its name from the two pans or balances on either side of a fulcrum.
Why do you use a 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. The triple beam balance can be used to measure mass directly from the objects, find mass by difference for liquid, and measure out substances.
What are platform balance used for?
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 sensitivity of an electronic balance?
electronic balances. These balances accurately weigh objects with masses of up to 300 g to two or 3 decimal places; that is to 0.01 or 0.001 g (1 mg). At a sensitivity of 1 mg, this balance is very susceptable to air currents.
How do you balance sensitivity?
Count the number of graph squares that cause the smallest detectable motion. Multiply that number of squares times the calculated mass of a single square to determine the balance’s sensitivity.
What are the different parts of a triple beam balance?
Beams and Riders The first beam, located at the front, has a 10-gram scale and a . 01-gram rider and is the lightest beam. The second beam, located in the middle, has a 500-gram scale and a 100-gram rider and is the heaviest beam. The third beam, located in the back, has a 100-gram scale and a 10-gram rider.