CA1334994C - Digital converter apparatus for improving the output of a two-wire transmitter - Google Patents

Digital converter apparatus for improving the output of a two-wire transmitter

Info

Publication number
CA1334994C
CA1334994C CA000548261A CA548261A CA1334994C CA 1334994 C CA1334994 C CA 1334994C CA 000548261 A CA000548261 A CA 000548261A CA 548261 A CA548261 A CA 548261A CA 1334994 C CA1334994 C CA 1334994C
Authority
CA
Canada
Prior art keywords
transmitter
transmitting
terminals
information
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA000548261A
Other languages
English (en)
French (fr)
Inventor
Richard L. Nelson
John A. Kielb
David L. Pederson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rosemount Inc
Original Assignee
Rosemount Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rosemount Inc filed Critical Rosemount Inc
Application granted granted Critical
Publication of CA1334994C publication Critical patent/CA1334994C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G08C19/04—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage using variable resistance
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Communication Cables (AREA)
  • Electric Cable Installation (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transmitters (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Tires In General (AREA)
CA000548261A 1986-10-02 1987-09-30 Digital converter apparatus for improving the output of a two-wire transmitter Expired - Fee Related CA1334994C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91464886A 1986-10-02 1986-10-02
US914,648 1986-10-02

Publications (1)

Publication Number Publication Date
CA1334994C true CA1334994C (en) 1995-03-28

Family

ID=25434614

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000548261A Expired - Fee Related CA1334994C (en) 1986-10-02 1987-09-30 Digital converter apparatus for improving the output of a two-wire transmitter

Country Status (18)

Country Link
EP (1) EP0324784B1 (de)
JP (1) JP2529874B2 (de)
KR (1) KR960014487B1 (de)
CN (1) CN1014450B (de)
AT (1) ATE109295T1 (de)
AU (1) AU611649B2 (de)
CA (1) CA1334994C (de)
DE (1) DE3750297T2 (de)
DK (1) DK171303B1 (de)
ES (1) ES2005363A6 (de)
HK (1) HK135094A (de)
IL (1) IL84004A (de)
IN (1) IN170265B (de)
MX (1) MX160488A (de)
NO (1) NO300566B1 (de)
WO (1) WO1988002528A1 (de)
YU (1) YU183987A (de)
ZA (1) ZA877271B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0986039B1 (de) 1998-09-07 2008-10-29 Endress + Hauser GmbH + Co. KG Anordnung zur Stromversorgung einer Stromschleifesendestation
DE19930661A1 (de) * 1999-07-02 2001-01-18 Siemens Ag Meßumformer
EP2200186B1 (de) * 2007-09-12 2016-05-18 Valery Vasilievich Ovchinnikov Verfahren zum übertragen von diskreten elektrischen signalen
US9217653B2 (en) * 2007-09-13 2015-12-22 Rosemount Inc. High performance architecture for process transmitters
DE102008050354A1 (de) * 2008-10-02 2010-04-08 Siemens Aktiengesellschaft Messumformer
US9281088B2 (en) 2010-06-07 2016-03-08 Rosemount Inc. Instrument for nuclear power facility
US8578783B2 (en) * 2011-09-26 2013-11-12 Rosemount Inc. Process fluid pressure transmitter with separated sensor and sensor electronics
RU2546576C2 (ru) * 2012-06-05 2015-04-10 Федеральное государственное бюджетное учреждение науки Институт программных систем им. А.К. Айламазяна Российской академии наук (ИПС им. А.К. Айламазяна РАН) ПРИЕМОПЕРЕДАТЧИК ИНТЕРФЕЙСА 4-20мА
US10962622B2 (en) 2013-12-23 2021-03-30 Rosemount Inc. Analog process variable transmitter with electronic calibration
DE102016207289B3 (de) * 2016-04-28 2017-05-04 Siemens Aktiengesellschaft Feldgerät zur Bestimmung einer Prozessgröße in der Prozessautomatisierung
CN110319857B (zh) * 2019-08-05 2024-05-14 北京恒泰翔基科技有限公司 一种具有高阻连接结构的传感器
KR102088874B1 (ko) * 2019-10-08 2020-03-13 (주)다스 방향 및 수평 레벨 탐지 표시용 전자 탐지 디바이스

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250490A (en) * 1979-01-19 1981-02-10 Rosemount Inc. Two wire transmitter for converting a varying signal from a remote reactance sensor to a DC current signal
US4520488A (en) * 1981-03-02 1985-05-28 Honeywell, Inc. Communication system and method
US4419619A (en) * 1981-09-18 1983-12-06 Mcgraw-Edison Company Microprocessor controlled voltage regulating transformer
CH664637A5 (de) * 1982-04-28 1988-03-15 Cerberus Ag Verfahren zur uebertragung von messwerten in einem ueberwachungssystem.
US4494183A (en) * 1982-06-17 1985-01-15 Honeywell Inc. Process variable transmitter having a non-interacting operating range adjustment
US4556866A (en) * 1983-03-16 1985-12-03 Honeywell Inc. Power line carrier FSK data system
JPS61142828A (ja) * 1984-12-14 1986-06-30 Yokogawa Electric Corp 二線式デ−タ伝送装置

Also Published As

Publication number Publication date
DK171303B1 (da) 1996-08-26
IN170265B (de) 1992-03-07
ATE109295T1 (de) 1994-08-15
YU183987A (en) 1990-08-31
EP0324784B1 (de) 1994-07-27
HK135094A (en) 1994-12-09
IL84004A (en) 1992-05-25
IL84004A0 (en) 1988-02-29
EP0324784A4 (de) 1989-09-26
KR880701929A (ko) 1988-11-07
ZA877271B (en) 1988-03-30
NO300566B1 (no) 1997-06-16
DE3750297T2 (de) 1994-12-15
AU611649B2 (en) 1991-06-20
CN87106642A (zh) 1988-06-22
NO882395L (no) 1988-05-31
CN1014450B (zh) 1991-10-23
WO1988002528A1 (en) 1988-04-07
DE3750297D1 (de) 1994-09-01
JP2529874B2 (ja) 1996-09-04
DK297588A (da) 1988-06-01
ES2005363A6 (es) 1989-03-01
KR960014487B1 (en) 1996-10-16
EP0324784A1 (de) 1989-07-26
MX160488A (es) 1990-03-12
DK297588D0 (da) 1988-06-01
NO882395D0 (no) 1988-05-31
JPH02500223A (ja) 1990-01-25
AU8039387A (en) 1988-04-21

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