公开(公告)号：EP1012550B1

公开(公告)日：2003-07-16

申请号：EP98906652.7

申请日：1998-02-23

Applicant: ROSEMOUNT INC.

Inventor： TETZLAFF, David, E. ,  ROSS, James, P.

IPC: G01L7/00 ,  G01V1/00 ,  G06F9/46 ,  G08G1/01 ,  H04K1/00 ,  G01B5/00

CPC classification number: G01L9/12 ,  H03M3/392 ,  H03M3/462

公开(公告)号：EP1012550A1

公开(公告)日：2000-06-28

申请号：EP98906652.7

申请日：1998-02-23

Applicant: ROSEMOUNT INC.

Inventor： TETZLAFF, David, E. ,  ROSS, James, P.

IPC: G01L7/00 ,  G01V1/00 ,  G06F9/46 ,  G08G1/01 ,  H04K1/00 ,  G01B5/00

CPC classification number: G01L9/12 ,  H03M3/392 ,  H03M3/462

Abstract: A transmitter (10) for use in a process control setting includes a sensor (18) adapted to couple to a process and provide a sensor output (19) related to a parameter of the process. A modulator (50) coupled to the sensor output (19) responsively provides a digital bit stream output (52) representative of the sensor output (19). A filter (54) provides a current decimation output. A comparator (56) compares a previous decimation output with the current decimation output. Circuitry (28) is provided for transmitting an output related to the parameter based upon the current decimation.