公开(公告)号：ZA8702875B

公开(公告)日：1988-04-27

申请号：ZA8702875

申请日：1987-04-23

Applicant: ROSEMOUNT INC

Inventor： FRICK ROGER L ,  ROGER L FRICK ,  SCHULTE JOHN P ,  JOHN P SCHULTE

IPC: G01L9/12 ,  G01R20060101 ,  G01R11/52 ,  G01R27/26 ,  G01R29/24 ,  G08C

CPC classification number: G01R29/24 ,  G01L9/125

公开(公告)号：DK683887D0

公开(公告)日：1987-12-23

申请号：DK683887

申请日：1987-12-23

Applicant: ROSEMOUNT INC

Inventor： FRICK ROGER L ,  SCHULTE JOHN P

IPC: G01L9/12 ,  G01R20060101 ,  G01R11/52 ,  G01R27/26 ,  G01R29/24 ,  G01R19/00

Abstract: A measurement circuit (10) provides an output signal as a function of an input signal. The measurement circuit includes a charge generator (18) which provides packets of charge as a function of the input signal to a measurement element (34). The measurement element (34) measures the charge provided and provides a measurement signal as a function of the charge received. The measurement signal (28) is coupled to a feedback circuit (9) which couples to switches in the charge generator (18) to control production of charge packets. The feedback circuit (9) provides at least one output signal indicative of the quantity or number of charge packets provided.

公开(公告)号：AU7356587A

公开(公告)日：1987-11-24

申请号：AU7356587

申请日：1987-04-16

Applicant: ROSEMOUNT INC

Inventor： FRICK ROGER L ,  SCHULTE JOHN P

IPC: G01L9/12 ,  G01R20060101 ,  G01R11/52 ,  G01R27/26 ,  G01R29/24

Abstract: A measurement circuit (10) provides an output signal as a function of an input signal. The measurement circuit includes a charge generator (18) which provides packets of charge as a function of the input signal to a measurement element (34). The measurement element (34) measures the charge provided and provides a measurement signal as a function of the charge received. The measurement signal (28) is coupled to a feedback circuit (9) which couples to switches in the charge generator (18) to control production of charge packets. The feedback circuit (9) provides at least one output signal indicative of the quantity or number of charge packets provided.

公开(公告)号：ZA8507791B

公开(公告)日：1986-09-24

申请号：ZA8507791

申请日：1985-10-09

Applicant: ROSEMOUNT INC

Inventor： KNECHT THOMAS A ,  FRICK ROGER L ,  SCHULTE JOHN P

IPC: G01L9/12 ,  G01L9/00 ,  H01G5/16 ,  H01G7/00 ,  G01L

CPC classification number: G01L9/0073 ,  H01G5/16 ,  Y10T29/43

公开(公告)号：AU4968685A

公开(公告)日：1986-05-02

申请号：AU4968685

申请日：1985-10-08

Applicant: ROSEMOUNT INC

Inventor： KNECHT THOMAS A ,  FRICK ROGER L ,  SCHULTE JOHN P

IPC: G01L9/12 ,  G01L9/00 ,  H01G5/16 ,  H01G7/00

Abstract: A capacitive sensing cell is adapted for manufacture in a batch process, and uses a substrate or base from a rigid insulating material such as glass and a diaphragm assembly of a brittle semiconductor. The diaphragm assembly and the substrate are anodically bonded together. A very shallow recess is formed on either the diaphragm or the substrate to accommodate a deposited capacitor plate. Two such assemblies are connected together and the assembly is filled with noncompressible fluid to slightly bow the diaphragms away from the substrates. Differential pressure between the diaphragm assemblies is sensed by detecting the relative positions of the two diaphragms.

公开(公告)号：CA2818159C

公开(公告)日：2017-09-05

申请号：CA2818159

申请日：2011-11-17

Applicant: ROSEMOUNT INC

Inventor： KOROLEV EUGENE ,  SCHULTE JOHN P

IPC: H04Q9/00 ,  G05B19/418

Abstract: A field device (102) for use in an industrial process, includes a process interface element (108) configured to measure or control a process variable. Communication circuitry (156) is configured to communicate with another location. A communication system is configured to provide communications between at least two components in the field device (102). A signal inverter (220) couples an inverted signal from the communication system (192) to other circuitry to thereby reduce interference received by the other circuitry.

公开(公告)号：AU2014268621A1

公开(公告)日：2015-12-10

申请号：AU2014268621

申请日：2014-05-21

Applicant: ROSEMOUNT INC

Inventor： HEDTKE ROBERT C ,  DAVIS DALE SCOTT ,  SCHULTE JOHN P

IPC: G06F21/30

Abstract: During manufacturing a unique encrypted authentication code is created for each product 12 based upon device specific information relating to that product 12. The unique encrypted authentication code together with the device specific information is stored in a database 23, and a representation 14 of the unique encrypted authentication code is stored on the product. To determine whether a product in question is authentic, the readable representation 14 of the unique encrypted authentication code is read and sent to a server 22 along with a request for product authentication. The server 22 provides an indication of authenticity of the product 14 in question based upon the unique encrypted authentication code received and the device specific information associated with that unique encrypted authentication code in the database 23.

公开(公告)号：CA2818159A1

公开(公告)日：2012-06-07

申请号：CA2818159

申请日：2011-11-17

Applicant: ROSEMOUNT INC

Inventor： KOROLEV EUGENE ,  SCHULTE JOHN P

IPC: H04Q9/00 ,  G05B19/418

Abstract: A field device (102) for use in an industrial process, includes a process interface element (108) configured to measure or control a process variable. Communication circuitry (156) is configured to communicate with another location. A communication system is configured to provide communications between at least two components in the field device (102). A signal inverter (220) couples an inverted signal from the communication system (192) to other circuitry to thereby reduce interference received by the other circuitry.

公开(公告)号：CA2800660A1

公开(公告)日：2011-11-17

申请号：CA2800660

申请日：2011-05-09

Applicant: ROSEMOUNT INC

Inventor： SCHULTE JOHN P

IPC: G05B19/042

Abstract: A process field device (104) for use in monitoring or controlling an industrial process includes first and second loop terminals (162, 164) configured to couple to a two- wire industrial process control loop (108). Field device circuitry (168) is configured to monitor or control a process variable of the industrial process. The field device circuitry (168) is powered by power connections from the two-wire industrial process control loop (108). A current regulator (220) is connected in series with the two-wire industrial process control loop (108), the first and second loop terminals (162, 164) and the field device circuitry (168). A voltage regulator (282) is connected in parallel with the current regulator (220) and in series with the two-wire industrial process control loop (108), first and second loop terminals (162, 164) and field device circuitry (168).

公开(公告)号：IN183215B

公开(公告)日：1999-10-02

申请号：IN812MA1991

申请日：1991-10-25

Applicant: ROSEMOUNT INC

Inventor： LOFGREN LYLE E ,  SCHULTE JOHN P ,  SEEMANN BRIAN

IPC: G05B6/00