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electronics.howstuffworks.com/gadgets/fitness/digital-scale.htm

Spring scales, for example, measure weight using Hooke's law, which relates force (weight) to the stretching or compression of a spring made from a given material. Not all scales use springs, but all measure weight using mechanical components. So, mechanical and digital scales differ only in how they display weight -- mechanically or ...

www.explainthatstuff.com/weights_and_balances.html

How scales work. Scales measure how much something weighs—and they do it by measuring how much force exists between the object you're weighing and planet Earth. Although scales measure force, they give you measurements of mass in kilograms, grams, pounds, or whatever. This can be a bit confusing, but it's acceptable because (as explained above) weight and mass are connected in a simple way...

www.adamequipment.com/aeblog/how-do-balances-and-scales-work

This post will examine the difference between digital and mechanical scales and a balances, how they work and what they are used for. Adam Equipment USA - A leading manufacturer of digital weighing scales and balances worldwide, specializing in top-quality commercial scales, industrial scales and laboratory balances. ... A scale displays weight ...

www.hunker.com/12183358/how-does-a-digital-scale-work

Digital scales work with the use of a strain gauge load cell. Whereas analog scales use springs to indicate the weight of an object, digital scales convert the force of a weight to an electric signal.

www.fitnessmusthaves.com/scales/how-do-body-fat-scales-work

Indeed, these scales are becoming increasingly more advanced and can now measure things such as water weight percentage, metabolic age, bone mass and much more. How Do Body Fat Scales Work? The vast majority of body fat scales use ‘bioelectrical impedance analysis’ (BIA) to read your results.

www.reference.com/science/weighing-scales-work-ddb54f328780a184

How Do Weighing Scales Work? Bathroom scales utilize a series of levers to distribute weight evenly while placing tension on a spring connected to a dial. The spring is calibrated so that it elongates under force, turning the attached dial until it displays a number proportionate to the weight distributed by each lever.

www.livestrong.com/article/354963-how-do-body-fat-scales-work-are-they-accurate

Although a scale is a useful tool in measuring weight loss, it is limited to evaluating only one component: weight. When it comes to health risks related to being overweight, fat is the culprit. Measuring body fat percentage is a better indicator of how well your diet and exercise program is working.

science.howstuffworks.com/engineering/civil/question626.htm

Truck scales are built to handle an enormous amount of abuse. For example, Weigh-Tronix provides a truck scale that they warranty to weigh trucks with a gross weight of 80,000 lbs (36,000 kg) each at a rate of 200 per day, 365 days a year for 25 years! Truck scales are built out of steel, concrete or, in most cases, a combination of both.The technology used in the scales themselves varies.

shop.transcell.com/how-digital-scales-work

How Digital Scales Work. Today, many people are relying on digital weighing scales to make their life easier. Almost every household in America has one of these. They are used in the kitchen to make sure ingredients of a certain recipe are very accurate, in the bathrooms for those who want to monitor their weights, as well as in measuring food ...

home.howstuffworks.com/inside-scale.htm

These brackets cause the weight on top of the scale (you) to be distributed evenly to the levers. The four levers in the scale are designed to work like one. There are four because that makes weight distribution much easier. The levers connect into a plate at the end of a spring. The arrangement is something like this: