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Can a Rotary Potentiometer be used as a conventional scale? Introduction I wanted to find out how a rotary potentiometer could be utilized to work as a weighing scale. The specific interest is the accuracy of this method and distinguish the advantages and disadvantages of using digital readings instead of our common everyday analogue spring gauge balance at the local supermarket. This investigation will require a potentiometer device being loaded with a series of masses which are linked to a voltmeter measuring the differences in voltage as more masses are added while a spring is used to hold the weight. The benefit of this system is that it can be calibrated in imperial and metric measurements as the results appear in Volts, whereas modern scales only provide 'grams' or 'kilograms' as opposed to pounds. Accuracy is vital in this task as there is a challenge to see how effective a potentiometer can...

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