All about Spring Scales
If you’re looking for a reasonably priced, easy to use scale, a spring scale may be a good choice. This type of scale is most commonly found in the produce section of the grocery store. It’s simple to use and its large, round analog display is easy to read. These scales offer accuracy with straightforward results.
Spring scales operate on the premise of Hooke’s law, which states that springs stretch as a result of a specific force. The heavier the load placed on it, the more the spring stretches. The force exerted on the spring helps determine the weight of the item. These scales range in capacity from a few pounds to tons.
These scales provide a high level of accuracy to .2 ounces. Large dials with clearly-marked numbers are uncomplicated. Just place your items on the scale and read the results. There are no buttons to press, no calculations to make, no manuals to read first.
Some scales feature temperature controlled springs, so readings won’t be skewed by environmental factors. Cold springs aren’t as pliable as warm ones, so a cold spring may give inaccurate results. If a spring is too warm, it may stretch more than it should, which will also affect the results. Over time, a spring can become permanently distorted so regular calibration is essential to keep your scale in good working order. Some scales feature dual springs to ensure precision.
Some scales have a platter or bowl to hold the items being weighed. This feature is handy for weighing fruits and vegetables at the market. It’s also helpful for measuring foods for a calorie-restricted diet. The bowl can be removed and replaced with the platform according to your needs.
Other scales have a hook from which the items hang. This is convenient if you do field work and don’t want to carry a full-sized scale around. Some hook models can fit in the palm of your hand, making them easy to maneuver and easy to use. They’re just as accurate as larger scales, but they can slip in a pocket or purse.
Spring scales are generally made of stainless steel for durability and ease of maintenance. They’re easy to clean and since they operate with springs, they don’t need a power supply. This portability allows them to be moved from place to place with ease. Some are designed with a feature that reduces needle bounce when something is being weighed. This helps with accuracy but it also helps give an immediate result, as opposed to waiting for the needle to settle on the correct reading.
A spring scale offers reasonably-priced accuracy, simplicity and versatility. Whether you use it at home, school or work, it’s a reliable way to weigh.