How Do Digital Scales Work?

Answer

Digital scales use strain gauge technology. They work by taking the weight of an item and evenly distributing the force of the weight to one end of a load cell. As the weight is applied to the end of the load cell, the cell will curve downwards changing the electrical resistance. The electrical resistance is run through an analogue to digital converter and then passed to a microchip which does the calculations for the LCD display.
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How Do Digital Scales Work?
Digital scales project your weight onto an LCD screen. Unlike an analog scale, which uses springs to determine the gravitational pull on an object, a digital scale is made up of more complex systems of load cells and strain gauges. The load cells and... More »
Difficulty: Easy
Source: www.ehow.com
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