Magnetic differential pressure switch

作者: Joseph A. Perry

DOI:

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摘要: A differential pressure switch incorporating a sensor formed by body having shaped chambers therein and an elastic diaphram moving shaft mounting magnet coupled magnetically to operate controllers mounted outside of the adjustably positioned relative for wide range adjustment.

参考文章(3)
Jimmie N Hoover, Flow,no-flow device ,(1968)
Oscar O Hembree, Clyde E Yost, Control assembly for oil well pump ,(1964)