Digital kitchen scales

Toneisok | 16:51 Thu 15th Mar 2007 | How it Works

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I recently dropped some digital kitchen scales and they fell apart, to my surprise there is hardly anything inside. As far as i can make out a small printed circuit measures how much an aluminium rod bends. Does any one know how this works?

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woodchopper

They are callled load cells - they work by resistance varying when a load is put on them - we have them at work - just a lot bigger andmore complicated.

have a look at this - http://www.measurespec.com/tips/principles.htm

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