Differential pressure transducers
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United States of America Patent
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Apr 1, 2003
Grant Date -
N/A
app pub date -
Nov 22, 1999
filing date -
Nov 21, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention pertains to differential pressure transducers for gas turbine motors, for measuring variable pressure differences within a medium or between different media. The differential pressure transducer is constructed as a linear displacement sensor according to the linear variable displacement transducer (LVDT) principle, and has a ferromagnetic core that can be moved in a translatory manner, a spring element for the set position of the core given nominal differential pressure, a primary coil and two secondary coils arranged in succession axially over the length of the stroke range of the core, and a tubular housing having a delivery connection on both sides of the stroke area of the core.
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