Title:
圧力センサ
Document Type and Number:
Japanese Patent JP2011503576
Kind Code:
A
Abstract:
A pressure transmitter is provided. The pressure transmitter includes a pressure sensor including a pair of process fluid pressure ports each having a deflectable diaphragm. A first variable capacitor is disposed within the pressure sensor and has a capacitance that varies with differential pressure between the process fluid ports. A second variable capacitor is disposed within the pressure sensor and has a capacitance that varies with line pressure.
Inventors:
Will Cox, Charles Earl
Application Number:
JP2010533196A
Publication Date:
January 27, 2011
Filing Date:
November 05, 2008
Export Citation:
Assignee:
Rosemount Incorporated
International Classes:
G01L13/02
Domestic Patent References:
| JP2006208225A | 2006-08-10 | |||
| JPS57139633A | 1982-08-28 | |||
| JPS57142534A | 1982-09-03 | |||
| JP2003522942A | 2003-07-29 | |||
| JP2006208225A | 2006-08-10 | |||
| JPS57139633A | 1982-08-28 | |||
| JPS57142534A | 1982-09-03 |
Attorney, Agent or Firm:
Hajime Tsukuni
Yasuo Yanagibashi
Yasuo Yanagibashi