公开(公告)号：DE60019126D1

公开(公告)日：2005-05-04

申请号：DE60019126

申请日：2000-08-07

Applicant: ROSEMOUNT INC

Inventor： SITTLER C ,  RUD E ,  GANSEN R

IPC: G01L15/00

Abstract: A pressure transmitter with first and second absolute pressure sensors receives process pressures from corresponding first and second process inlets. A transmitter circuit coupled to the first and second absolute pressure sensors generates a differential pressure type output. A third absolute pressure sensor coupled to the transmitter circuit receives atmospheric pressure from a third inlet. The transmitter circuit generates a second type of transmitter output that can be a gage or absolute pressure type. Single crystal. sapphire pressure sensors are preferred to provide enough accuracy for measuring accurately over 200:1 pressure range.

公开(公告)号：DE60019126T2

公开(公告)日：2006-02-16

申请号：DE60019126

申请日：2000-08-07

Applicant: ROSEMOUNT INC

Inventor： SITTLER C ,  RUD E ,  GANSEN R

IPC: G01L15/00

Abstract: A pressure transmitter with first and second absolute pressure sensors receives process pressures from corresponding first and second process inlets. A transmitter circuit coupled to the first and second absolute pressure sensors generates a differential pressure type output. A third absolute pressure sensor coupled to the transmitter circuit receives atmospheric pressure from a third inlet. The transmitter circuit generates a second type of transmitter output that can be a gage or absolute pressure type. Single crystal. sapphire pressure sensors are preferred to provide enough accuracy for measuring accurately over 200:1 pressure range.