公开(公告)号：DE69423105T2

公开(公告)日：2000-11-09

申请号：DE69423105

申请日：1994-08-12

Applicant: ROSEMOUNT INC

Inventor： BRODEN A ,  ORTH M ,  BORGESON W ,  LANCTOT B ,  VOEGELE D

IPC: G08C19/02

Abstract: In this invention, a multivariable transmitter providing an output representative of mass flow has a dual microprocessor structure. The first microprocessor compensates digitized process variables and the second microprocessor computes the mass flow as well as arbitrating communications between the transmitter and a master. In a second embodiment of the present invention, a first microprocessor compensates digitized process variables, a second microprocessor computes an installation specific physical parameter such as mass flow and a third microprocessor arbitrates real-time communications between the transmitter and a master.

公开(公告)号：DE60032779T2

公开(公告)日：2007-11-08

申请号：DE60032779

申请日：2000-09-26

Applicant: ROSEMOUNT INC

Inventor： BEHM M ,  KRUEGER B ,  ORTH M ,  BREKKEN C

IPC: G01L9/00 ,  G01L19/04 ,  G01D1/00 ,  H01R29/00

Abstract: A pressure transmitter with a transmitter housing having an outer wall providing thermal resistance. The outer wall extends from an isothermal island at a first end to a heat sink island at a second end. The isothermal island includes a fluid inlet, and pressure and temperature sensors. The heat sink island includes a primary heat load device that is heat sunk to an outer shell of an electrical connector. The connector contacts carry a current controlled by the transmitter, and a portion of the current is conducted by a primary heat load device. A circuit board controls the current to represent the pressure. A high accuracy, temperature compensated current output represents pressure.

公开(公告)号：DE60032779D1

公开(公告)日：2007-02-15

申请号：DE60032779

申请日：2000-09-26

Applicant: ROSEMOUNT INC

Inventor： BEHM M ,  KRUEGER B ,  ORTH M ,  BREKKEN C

IPC: G01L9/00 ,  G01L19/04 ,  G01D1/00 ,  H01R29/00

Abstract: A pressure transmitter with a transmitter housing having an outer wall providing thermal resistance. The outer wall extends from an isothermal island at a first end to a heat sink island at a second end. The isothermal island includes a fluid inlet, and pressure and temperature sensors. The heat sink island includes a primary heat load device that is heat sunk to an outer shell of an electrical connector. The connector contacts carry a current controlled by the transmitter, and a portion of the current is conducted by a primary heat load device. A circuit board controls the current to represent the pressure. A high accuracy, temperature compensated current output represents pressure.

公开(公告)号：DE69423105D1

公开(公告)日：2000-03-30

申请号：DE69423105

申请日：1994-08-12

Applicant: ROSEMOUNT INC

Inventor： BRODEN A ,  ORTH M ,  BORGESON W ,  LANCTOT B ,  VOEGELE D

IPC: G08C19/02

Abstract: In this invention, a multivariable transmitter providing an output representative of mass flow has a dual microprocessor structure. The first microprocessor compensates digitized process variables and the second microprocessor computes the mass flow as well as arbitrating communications between the transmitter and a master. In a second embodiment of the present invention, a first microprocessor compensates digitized process variables, a second microprocessor computes an installation specific physical parameter such as mass flow and a third microprocessor arbitrates real-time communications between the transmitter and a master.