DE3752283D1 - Analoger messumformer mit digitaler steuerung - Google Patents
Analoger messumformer mit digitaler steuerungInfo
- Publication number
- DE3752283D1 DE3752283D1 DE3752283T DE3752283T DE3752283D1 DE 3752283 D1 DE3752283 D1 DE 3752283D1 DE 3752283 T DE3752283 T DE 3752283T DE 3752283 T DE3752283 T DE 3752283T DE 3752283 D1 DE3752283 D1 DE 3752283D1
- Authority
- DE
- Germany
- Prior art keywords
- analog
- digital control
- converter
- signal processing
- processing circuitry
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Transmitters (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US89937886A | 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 (de) | 1999-07-29 |
Family
ID=25410872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3752283T Expired - Lifetime DE3752283D1 (de) | 1986-08-22 | 1987-08-12 | Analoger messumformer mit digitaler steuerung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0328520B1 (de) |
AT (1) | ATE181611T1 (de) |
CA (1) | CA1300924C (de) |
DE (1) | DE3752283D1 (de) |
WO (1) | WO1988001417A1 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4016922C3 (de) * | 1990-05-25 | 1998-05-20 | Schoppe & Faeser Gmbh | Elektrischer Meßumformer nach dem Zwei-Draht-Verfahren |
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 |
BR9407400A (pt) * | 1993-09-07 | 1996-11-05 | Rosemount Inc | Transmissor bifilar |
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 (de) * | 1999-02-08 | 2000-08-10 | Siemens Ag | Meßumformer sowie Verfahren zur Diagnose der Versorgung eines Meßumformers |
DE19930661A1 (de) * | 1999-07-02 | 2001-01-18 | Siemens Ag | Meßumformer |
US6643610B1 (en) | 1999-09-24 | 2003-11-04 | Rosemount Inc. | Process transmitter with orthogonal-polynomial fitting |
DE19964002A1 (de) * | 1999-12-30 | 2001-07-12 | Micronas Gmbh | Sensor |
DE10037996C2 (de) * | 2000-08-03 | 2003-04-17 | Siemens Ag | Elektronisches Gerät, insbesondere Feldgerät |
DE10102791B4 (de) | 2001-01-22 | 2004-04-15 | Ifm Electronic Gmbh | Elektrischer Meßumformer |
DE10202028A1 (de) * | 2002-01-18 | 2003-07-24 | Endress & Hauser Gmbh & Co Kg | Transmitter |
DE102005020870B4 (de) * | 2005-02-10 | 2014-05-22 | Continental Automotive Gmbh | Sensorschaltung |
DE102005020199B3 (de) * | 2005-04-28 | 2006-09-21 | Peter Wieninger | Verfahren zur Eichung eines Schaltkreises mit einem Sensorsystem mit aktiver Halbleiterschaltung |
US20060265105A1 (en) * | 2005-05-20 | 2006-11-23 | Hughes Albert R | Loop-powered field instrument |
US7480487B2 (en) | 2005-05-20 | 2009-01-20 | Dresser, Inc. | Power regulation for field instruments |
US7461562B2 (en) | 2006-08-29 | 2008-12-09 | Rosemount Inc. | Process device with density measurement |
US7750642B2 (en) | 2006-09-29 | 2010-07-06 | Rosemount Inc. | Magnetic flowmeter with verification |
FI121101B (fi) * | 2007-01-22 | 2010-06-30 | Abb Oy | Laite analogisen virta- tai jännitesignaalin tuottamiseksi |
DE102007046560A1 (de) | 2007-09-28 | 2009-04-02 | Siemens Ag | Feldgerät mit einem Analogausgang |
CN102027333B (zh) | 2008-05-23 | 2012-10-03 | 罗斯蒙德公司 | 采用能量流量计算的多变量过程流体流量设备 |
DE102008050354A1 (de) * | 2008-10-02 | 2010-04-08 | Siemens Aktiengesellschaft | Messumformer |
DE102008057474B4 (de) | 2008-11-14 | 2012-08-02 | Kg Transmitter Components Gmbh | Meßumformer |
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)
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 |
-
1987
- 1987-08-12 AT AT87905408T patent/ATE181611T1/de not_active IP Right Cessation
- 1987-08-12 EP EP87905408A patent/EP0328520B1/de not_active Expired - Lifetime
- 1987-08-12 WO PCT/US1987/001942 patent/WO1988001417A1/en active IP Right Grant
- 1987-08-12 DE DE3752283T patent/DE3752283D1/de not_active Expired - Lifetime
- 1987-08-20 CA CA000545002A patent/CA1300924C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0328520A4 (de) | 1989-10-04 |
WO1988001417A1 (en) | 1988-02-25 |
EP0328520A1 (de) | 1989-08-23 |
CA1300924C (en) | 1992-05-19 |
ATE181611T1 (de) | 1999-07-15 |
EP0328520B1 (de) | 1999-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |