Pressure transmitter with improved isolator system

A pressure transmitter with a fluid isolator that includes a sensor tube and a fill tube that have "D" shaped ends that connect together in a port internal to the transmitter. The shaped ends can be brazed into the port for sealing. Fitting both the sensor tube and the fill tube in the sam...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SZAFRANSKI KEVIN P, RUD, JR. STANLEY E, HORKY DAVID A, LOUWAGIE BENNETT L, EIDENSCHINK RYAN R, SHERIN MATTHEW G, SCHANSBERG TODD W, HARASYN DONALD E, ROMO MARK G, NORD CHRISTINA A, BALLOT WILLIAM J, GUTTSEN KENNETH G, BEHM STEVEN M, JOHNSON THOMAS E, HEDTKE ROBERT C, PATRICK RENAE M, BREKKEN JEFFREY C
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A pressure transmitter with a fluid isolator that includes a sensor tube and a fill tube that have "D" shaped ends that connect together in a port internal to the transmitter. The shaped ends can be brazed into the port for sealing. Fitting both the sensor tube and the fill tube in the same port provides a low cost isolator with reduced isolator liquid volume. The fluid isolator has an isolator diaphragm with a central diaphragm region overlying a central backing plate that includes a annular groove. The annular groove avoids slow response of the isolator after an overpressure condition.