Title:
プロセス流体圧力送信機における改良された差圧センサ分離
Document Type and Number:
Japanese Patent JP5140732
Kind Code:
B2
Abstract:
A differential pressure transmitter includes first and second process fluid inlets. A differential pressure sensor is disposed within the transmitter and has first and second sensor inlets. A first isolator diaphragm is located proximate the first process fluid inlet and is operably coupled to the first sensor inlet through a first fill fluid volume. A second isolator diaphragm is located proximate the second process fluid inlet and is operably coupled to the second sensor inlet through a second fill fluid volume. Measurement circuitry is operably coupled to the differential pressure sensor and configured to measure an electrical parameter of the sensor and provide an indication of the measured parameter. A third fluid volume substantially surrounds the differential pressure sensor. The third fluid volume exerts a compressive force on the differential pressure sensor.
Inventors:
Lomo, Mark, Gee.
Application Number:
JP2010525887A
Publication Date:
February 13, 2013
Filing Date:
September 04, 2008
Export Citation:
Assignee:
Rosemount Incorporated
International Classes:
G01L13/02; G01L19/04
Domestic Patent References:
| JP2133645U | ||||
| JP2003519378A | ||||
| JP2007524084A | ||||
| JP63008524A | ||||
| JP2005114167A |
Foreign References:
| US20020108447 |
Attorney, Agent or Firm:
Kaori Tanaka
Kiyotaka Sakamoto
Sanji Tanabe
Kiyotaka Sakamoto
Sanji Tanabe