Which individual made crucial contributions to developing practical strain gauge-based pressure sensors?
Answer
Dr. Frank F. Hall
The text specifically highlights contributions made in the mid-twentieth century regarding strain gauge technology, which became fundamental to modern pressure sensing. Dr. Frank F. Hall is named as a key figure whose work was instrumental in developing practical implementations of these sensors. His focus, alongside others in scientific fields, was on harnessing the property of strain gauges—where electrical resistance changes under mechanical strain—to create devices capable of providing continuous and highly precise pressure readings essential for advanced machinery.

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