1724. The Ten Dollar Load Cell
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Paper
Abstract
Load cells for electronic weighing of any capacity have historically cost hundreds of dollars. Five different low capacity load cells that only cost tens of dollars are described. The criteria necessary to achieve that price are covered. This results in a useful outline of load cell cost factors to get accurate weighing electronically. Performance specifications and physical characteristics of six different types of resistive strain gages are reviewed. Reasons for the etched foil strain gage being the most common in electronic weighing today are given. Prospects of lower cost high capacity load cells are outlined.
