DE3752283D1 - Analog transmitter with digital control - Google Patents

Analog transmitter with digital control

Info

Publication number
DE3752283D1
DE3752283D1 DE19873752283 DE3752283A DE3752283D1 DE 3752283 D1 DE3752283 D1 DE 3752283D1 DE 19873752283 DE19873752283 DE 19873752283 DE 3752283 A DE3752283 A DE 3752283A DE 3752283 D1 DE3752283 D1 DE 3752283D1
Authority
DE
Grant status
Grant
Patent type
Prior art keywords
digital control
analog transmitter
transmitter
analog
digital
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 - Lifetime
Application number
DE19873752283
Other languages
German (de)
Inventor
Roger Frick
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
Grant date

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00Electric signal transmission systems
    • G08C19/02Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
DE19873752283 1986-08-22 1987-08-12 Analog transmitter with digital control Expired - Lifetime DE3752283D1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US89937886 true 1986-08-22 1986-08-22
PCT/US1987/001942 WO1988001417A1 (en) 1986-08-22 1987-08-12 Analog transducer circuit with digital control

Publications (1)

Publication Number Publication Date
DE3752283D1 true DE3752283D1 (en) 1999-07-29

Family

ID=25410872

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873752283 Expired - Lifetime DE3752283D1 (en) 1986-08-22 1987-08-12 Analog transmitter with digital control

Country Status (4)

Country Link
EP (1) EP0328520B1 (en)
CA (1) CA1300924C (en)
DE (1) DE3752283D1 (en)
WO (1) WO1988001417A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016922C3 (en) * 1990-05-25 1998-05-20 Schoppe & Faeser Gmbh Electrical transducer according to the two-wire process
GB2247318B (en) * 1990-08-20 1994-08-10 Rosemount Ltd A transmitter
WO1993007601A1 (en) * 1991-09-30 1993-04-15 Milltronics Ltd. Calibration system for measurement instruments
US5416723A (en) * 1993-03-03 1995-05-16 Milltronics Ltd. Loop powered process control transmitter
EP0717869B1 (en) * 1993-09-07 2000-02-23 Rosemount Inc. Multivariable transmitter
US5606513A (en) * 1993-09-20 1997-02-25 Rosemount Inc. Transmitter having input for receiving a process variable from a remote sensor
US5936514A (en) * 1996-09-27 1999-08-10 Rosemount Inc. Power supply input circuit for field instrument
DE19905071A1 (en) * 1999-02-08 2000-08-10 Siemens Ag Transmitter and method for diagnosing the supply of a transmitter
DE19930661A1 (en) * 1999-07-02 2001-01-18 Siemens Ag transmitters
US6643610B1 (en) 1999-09-24 2003-11-04 Rosemount Inc. Process transmitter with orthogonal-polynomial fitting
DE19964002A1 (en) 1999-12-30 2001-07-12 Micronas Gmbh Sensor, has converter to generate electrical signal and signal processing unit to generate output signal with switch unit for offset compensation and devices for frequency-dependent mode switching
DE10037996C2 (en) * 2000-08-03 2003-04-17 Siemens Ag Electronic device, in particular field device
DE10102791B4 (en) 2001-01-22 2004-04-15 Ifm Electronic Gmbh electric transducer
DE10202028A1 (en) * 2002-01-18 2003-07-24 Endress & Hauser Gmbh & Co Kg Transmitter for detecting a physical measured variable and for converting it into an electrical variable uses signal processors to reshape the electrical variable into a test signal
DE102005020870B4 (en) * 2005-02-10 2014-05-22 Continental Automotive Gmbh sensor circuit
DE102005020199B3 (en) * 2005-04-28 2006-09-21 Peter Wieninger Water level sensor system calibrating method, e.g. for industrial water tank, involves detecting signal line`s impedance, and temporarily changing impedance between display device`s calibration and normal modes, based on detected impedance
US7480487B2 (en) 2005-05-20 2009-01-20 Dresser, Inc. Power regulation for field instruments
US20060265105A1 (en) * 2005-05-20 2006-11-23 Hughes Albert R Loop-powered field instrument
US7461562B2 (en) 2006-08-29 2008-12-09 Rosemount Inc. Process device with density measurement
WO2008042290A3 (en) 2006-09-29 2008-07-24 Rosemount Inc Magnetic flowmeter with verification
FI121101B (en) * 2007-01-22 2010-06-30 Abb Oy Device for generating an analog current or voltage signal
DE102007046560A1 (en) 2007-09-28 2009-04-02 Siemens Ag Field device with an analog output
US8849589B2 (en) 2008-05-23 2014-09-30 Rosemount Inc. Multivariable process fluid flow device with energy flow calculation
DE102008050354A1 (en) * 2008-10-02 2010-04-08 Siemens Aktiengesellschaft transmitters
DE102008057474B4 (en) * 2008-11-14 2012-08-02 Kg Transmitter Components Gmbh transmitters
US8340791B2 (en) 2009-10-01 2012-12-25 Rosemount Inc. Process device with sampling skew
US8334788B2 (en) 2010-03-04 2012-12-18 Rosemount Inc. Process variable transmitter with display
US9121743B2 (en) 2012-05-31 2015-09-01 Rosemount Inc. Process variable transmitter system with analog communication

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US604566A (en) * 1898-05-24 Machine for separating fine gold flakes from sand
US4001813A (en) * 1975-07-02 1977-01-04 The Bendix Corporation Precision capacitance to digital conversion system
US4494183A (en) * 1982-06-17 1985-01-15 Honeywell Inc. Process variable transmitter having a non-interacting operating range adjustment
US4567466A (en) * 1982-12-08 1986-01-28 Honeywell Inc. Sensor communication system
US4604566A (en) * 1985-08-07 1986-08-05 The Babcock & Wilcox Company Voltage pulse to current regulating convertor

Also Published As

Publication number Publication date Type
EP0328520B1 (en) 1999-06-23 grant
CA1300924C (en) 1992-05-19 grant
EP0328520A4 (en) 1989-10-04 application
WO1988001417A1 (en) 1988-02-25 application
EP0328520A1 (en) 1989-08-23 application

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Legal Events

Date Code Title Description
8332 No legal effect for de