MX167954B - Transmision de presion de puesta a cero propia con distribuidor automatico de la presion - Google Patents
Transmision de presion de puesta a cero propia con distribuidor automatico de la presionInfo
- Publication number
- MX167954B MX167954B MX003311A MX331186A MX167954B MX 167954 B MX167954 B MX 167954B MX 003311 A MX003311 A MX 003311A MX 331186 A MX331186 A MX 331186A MX 167954 B MX167954 B MX 167954B
- Authority
- MX
- Mexico
- Prior art keywords
- pressure
- valve
- transducer
- line
- lines
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/28—Current-supply circuits or arrangements for selection equipment at exchanges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Fluid Pressure (AREA)
- Control Of Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
La presente invención se refiere a un conjunto transductor de presión de puesta a cero propia que comprende un transductor de presión con dos entradas; una primera línea de presión conectada a una de dichas entradas; una segunda línea de presión conectada a la otra de dichas dos entradas; una primera válvula en la primera línea de presión; una segunda válvula en dicha segunda línea de presión; una línea de conexión de presión primera y segunda, en un punto de tales líneas situado entre la primera y segunda válvulas y el transductor; una válvula compensadora de presión en dicha línea de conexión; medios conmutadores conectados a dicha primera válvula y a la válvula compensadora de presión que al recibir una señal de control abren dicha primera válvula y mantienen la válvula compensadora de presión cerrada, mientras que con la recepción de otra señal de control, cierran las primeras válvulas y abren la válvula compensadora de presión para compensar la presión entre dichas líneas de presión primera y segunda y, en consecuencia, compensar la presión en las dos entradas del transductor; y medios de control, que comprenden un microprocesador conectado al transductor de presión para la recepción de su señal y conectado a los medios selectores para generar una y otra de dichas señales de control y alternativamente exponer las dos entradas de dicho transductor de presión a presiones separadas en las citadas líneas de presión primera y segunda, estando incorporadas las citadas válvulas y medios conmutadores a un distribuidor de presión que incluye las líneas de presión primera y segunda y la línea de conexión.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/764,916 US4655074A (en) | 1985-08-12 | 1985-08-12 | Self-zeroing pressure transmitter with automatic pressure manifold |
Publications (1)
Publication Number | Publication Date |
---|---|
MX167954B true MX167954B (es) | 1993-04-26 |
Family
ID=25072158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX003311A MX167954B (es) | 1985-08-12 | 1986-07-30 | Transmision de presion de puesta a cero propia con distribuidor automatico de la presion |
Country Status (10)
Country | Link |
---|---|
US (1) | US4655074A (es) |
EP (1) | EP0217509B1 (es) |
JP (1) | JPS6238336A (es) |
KR (1) | KR940010207B1 (es) |
AU (2) | AU581325B2 (es) |
BR (1) | BR8603174A (es) |
CA (1) | CA1274102A (es) |
DE (1) | DE3650086T2 (es) |
IN (1) | IN163066B (es) |
MX (1) | MX167954B (es) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604566A (en) * | 1985-08-07 | 1986-08-05 | The Babcock & Wilcox Company | Voltage pulse to current regulating convertor |
US4817022A (en) * | 1986-07-30 | 1989-03-28 | Barber-Colman Company | Method and apparatus for automatic offset compensation in parameter-sensing transducer systems |
FR2651318B2 (fr) * | 1988-06-03 | 1994-11-18 | Karlsruhe Augsburg Iweka | Ensemble perfectionne de detection et de mesure de la pression et de la temperature dans un fluide sous pression. |
US6069594A (en) * | 1991-07-29 | 2000-05-30 | Logitech, Inc. | Computer input device with multiple switches using single line |
JP2615532B2 (ja) * | 1991-09-04 | 1997-05-28 | 動力炉・核燃料開発事業団 | 高精度差圧測定装置における零点補正方法 |
US5596147A (en) * | 1995-11-17 | 1997-01-21 | Wilda; Douglas W. | Coplanar pressure sensor mounting for remote sensor |
US5668322A (en) * | 1996-06-13 | 1997-09-16 | Rosemount Inc. | Apparatus for coupling a transmitter to process fluid having a sensor extension selectively positionable at a plurality of angles |
US7111491B2 (en) * | 2001-09-08 | 2006-09-26 | Ashcroft Inc. | Portable differential pressure generator |
US6672130B2 (en) * | 2001-09-08 | 2004-01-06 | Dresser, Inc. | Pressure generator for portable instrument |
US20040206154A1 (en) * | 2002-05-16 | 2004-10-21 | Kosh William Stephen | Portable differential pressure generator |
JP2005273389A (ja) * | 2004-03-26 | 2005-10-06 | Toli Corp | 壁面施工用部材及び壁面の施工方法 |
ZA200804550B (en) | 2005-11-09 | 2009-08-26 | Combinatorx Inc | Methods, compositions, and kits for the treatment of medical conditions |
DE102012112425A1 (de) * | 2012-12-17 | 2014-07-03 | Endress + Hauser Gmbh + Co. Kg | Verfahren zur Erfassung und Korrektur einer Nullpunktverschiebung eines Druckmessgerätes |
DE102013114495A1 (de) | 2013-12-19 | 2015-06-25 | S.K.I. GmbH | Verfahren sowie Messanordnung nach dem Differenzdruckprinzip mit Nullpunktabgleich |
CN112045548B (zh) * | 2020-08-24 | 2022-09-06 | 华海清科股份有限公司 | 用于化学机械抛光的晶圆承载装置和化学机械抛光设备 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1182137A (en) * | 1967-07-04 | 1970-02-25 | Mercury Electronics Scotland L | Improvements in Manometers or Pressure Transducers |
US4466290A (en) * | 1981-11-27 | 1984-08-21 | Rosemount Inc. | Apparatus for conveying fluid pressures to a differential pressure transducer |
JPS58168933A (ja) * | 1982-03-30 | 1983-10-05 | Toshiba Corp | 圧力計校正装置 |
US4476707A (en) * | 1982-04-08 | 1984-10-16 | Bear Medical Systems, Inc. | Gas flow measurement with detented chopper valve |
US4494183A (en) * | 1982-06-17 | 1985-01-15 | Honeywell Inc. | Process variable transmitter having a non-interacting operating range adjustment |
DE3280015D1 (en) * | 1982-08-19 | 1989-12-14 | Honeywell Inc | Improvements in 2-wire analog communication systems |
FR2544071B1 (fr) * | 1983-04-05 | 1985-06-14 | Desbordes A Ets | Appareil de mesure de pression differentielle |
US4576035A (en) * | 1984-01-05 | 1986-03-18 | Cordis Corporation | Self-calibrating differential condition sensor |
US4729125A (en) * | 1985-08-12 | 1988-03-01 | The Babcock & Wilcox Company | On-line serial communication interface to a transmitter from a current loop |
US4607247A (en) * | 1985-08-12 | 1986-08-19 | The Babcock & Wilcox Company | On-line serial communication interface from a transmitter to a current loop |
-
1985
- 1985-08-12 US US06/764,916 patent/US4655074A/en not_active Expired - Fee Related
-
1986
- 1986-04-28 IN IN332/CAL/86A patent/IN163066B/en unknown
- 1986-05-24 KR KR1019860004070A patent/KR940010207B1/ko not_active IP Right Cessation
- 1986-05-26 JP JP61119415A patent/JPS6238336A/ja active Granted
- 1986-05-30 CA CA000510382A patent/CA1274102A/en not_active Expired - Fee Related
- 1986-06-27 AU AU59420/86A patent/AU581325B2/en not_active Ceased
- 1986-06-27 AU AU59422/86A patent/AU585363B2/en not_active Ceased
- 1986-07-07 BR BR8603174A patent/BR8603174A/pt unknown
- 1986-07-30 MX MX003311A patent/MX167954B/es unknown
- 1986-08-01 EP EP86305962A patent/EP0217509B1/en not_active Expired - Lifetime
- 1986-08-01 DE DE3650086T patent/DE3650086T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0580974B2 (es) | 1993-11-11 |
DE3650086T2 (de) | 1995-04-06 |
KR940010207B1 (ko) | 1994-10-22 |
AU5942086A (en) | 1987-02-19 |
BR8603174A (pt) | 1987-03-17 |
EP0217509A2 (en) | 1987-04-08 |
IN163066B (es) | 1988-08-06 |
CA1274102A (en) | 1990-09-18 |
JPS6238336A (ja) | 1987-02-19 |
AU5942286A (en) | 1987-02-19 |
KR870002734A (ko) | 1987-04-06 |
DE3650086D1 (de) | 1994-11-10 |
EP0217509A3 (en) | 1988-04-27 |
EP0217509B1 (en) | 1994-10-05 |
US4655074A (en) | 1987-04-07 |
AU585363B2 (en) | 1989-06-15 |
AU581325B2 (en) | 1989-02-16 |
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