| Body Mass Index - BMI |
| The body mass index - BMI is an approximate measure of body fat. It is based on your height and weight. |
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| Scale Calibration |
| The goal is to measure the weight in relation to the legal reference standards. |
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Mechanical beam scales are probably the oldest form of weighing device in existence. They rely on a comparison between a known weight and the unknown sample, which is measured by sliding weights along several calibrated beams. They are rugged and durable, and generally accurate enough for educational uses. Since they use moving parts to literally balance the measurement, they will eventually need to be serviced for wear and tear.
Digital scales use strain gauge type load cells to measure mass. As a weight is applied to the load cell, the electric resistance of the load cell changes. By measuring this change, the mass of the sample can be accurately determined. There are many models and features to choose from, but it doesn’t have to be a confusing and frustrating process if you can define your needs and match them with the proper scale.
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