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The Tale of the ScaleAn Odyssey of Invention$
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Solly Angel

Print publication date: 2004

Print ISBN-13: 9780195158687

Published to Oxford Scholarship Online: October 2011

DOI: 10.1093/acprof:oso/9780195158687.001.0001

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Beginner's Luck

Beginner's Luck

Chapter:
(p.99) 11 Beginner's Luck
Source:
The Tale of the Scale
Author(s):

Solly Angel

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195158687.003.0011

Solly Angel returned to California to try his luck again at Transducer Techniques. They zeroed in on the design of a one-piece aluminum load cell in the shape of a thin diaphragm with a protruding boss at its center, surrounded by a thick and broad ring. Tom Heinsheimer, the mayor of Rolling Hills, arranged a meeting with a friend of his, Harry Norton, at the Jet Propulsion Laboratory in Pasadena. He was kind enough to sell his book for the instruction of the basics of testing sensor performance. The most important contact made in California that summer was with John Hall, the president of Micro Measurements II. Angel explained his predicament and asked for Hall's advice. He explained that for a personal scale, a load cell design was needed that would be insensitive to the shifting of one's weight from one place to another on the scale platform. The lessons learned from Charlie Kientzler about how to measure accuracy, that most important property of scales, are summarized in this chapter. Just as he was ready to leave for the Netherlands, the United States Patent and Trademark Office formally approved the patent for the sandwich-plate scale.

Keywords:   sandwich-plate scale, Transducer Techniques, Tom Heinsheimer, Harry Norton, John Hall, Charlie Kientzler, Solly Angel

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