BR8805914A - Circuito de zero e de extensao de escala - Google Patents

Circuito de zero e de extensao de escala

Info

Publication number
BR8805914A
BR8805914A BR888805914A BR8805914A BR8805914A BR 8805914 A BR8805914 A BR 8805914A BR 888805914 A BR888805914 A BR 888805914A BR 8805914 A BR8805914 A BR 8805914A BR 8805914 A BR8805914 A BR 8805914A
Authority
BR
Brazil
Prior art keywords
zero
extension circuit
scale extension
scale
circuit
Prior art date
Application number
BR888805914A
Other languages
English (en)
Inventor
Ferdinand Dombrowski
Dieter Forster
Original Assignee
Fisher Controls Int
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 Fisher Controls Int filed Critical Fisher Controls Int
Publication of BR8805914A publication Critical patent/BR8805914A/pt

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Measuring Fluid Pressure (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Control Of Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
BR888805914A 1987-11-12 1988-11-11 Circuito de zero e de extensao de escala BR8805914A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/119,836 US4836011A (en) 1987-11-12 1987-11-12 Zero and span adjustment circuit for current/pressure transducer

Publications (1)

Publication Number Publication Date
BR8805914A true BR8805914A (pt) 1989-08-01

Family

ID=22386677

Family Applications (1)

Application Number Title Priority Date Filing Date
BR888805914A BR8805914A (pt) 1987-11-12 1988-11-11 Circuito de zero e de extensao de escala

Country Status (8)

Country Link
US (1) US4836011A (pt)
EP (1) EP0316292B1 (pt)
JP (1) JP2649714B2 (pt)
AU (1) AU597195B2 (pt)
BR (1) BR8805914A (pt)
CA (1) CA1306043C (pt)
DE (1) DE3850350T2 (pt)
FI (1) FI93260C (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5105791A (en) * 1990-12-21 1992-04-21 Nye Jr Dudley D Current to pressure/vacuum transducer
US5105790A (en) * 1990-12-21 1992-04-21 Nye Jr Dudley D Current controlled fluid bleed
US5532925A (en) * 1994-08-12 1996-07-02 Fisher Controls International, Inc. Current-to-pressure transducer with selectable, adjustable input filter
US5841359A (en) * 1995-01-31 1998-11-24 Datcon Instrument Company Visual alarm gauge
US5665899A (en) * 1996-02-23 1997-09-09 Rosemount Inc. Pressure sensor diagnostics in a process transmitter
US7003417B2 (en) * 2003-06-06 2006-02-21 Invensys Systems, Inc. Multiple calibration ranges stored in a process transmitter
DE102006059938B3 (de) * 2006-12-19 2008-03-13 Abb Patent Gmbh Verfahren zur Diagnose eines mit einer Hilfsenergie angetriebenen Stellorgans
US8069730B2 (en) * 2008-11-14 2011-12-06 Kulite Semiconductor Products, Inc. Pressure transducer structures suitable for curved surfaces
US20170307460A1 (en) * 2016-04-25 2017-10-26 Pratt & Whitney Canada Corp. Correction of pressure measurements in engines
CN112379246B (zh) * 2020-11-17 2024-05-17 西北机电工程研究所 基于可穿戴设备的薄膜型压力传感器接口电路调试方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US447780A (en) * 1891-03-10 Gar brake and starter
US2874354A (en) * 1954-10-15 1959-02-17 Panellit Inc Calibrating circuit for current measuring systems
US3222599A (en) * 1961-01-17 1965-12-07 Solid States Systems Inc Differential amplifier metering circuit with temperature compensation
US3408570A (en) * 1964-07-01 1968-10-29 Gen Electric Wide scale indicator for weak current amplitudes within a predetermined range above a minimum amplitude
SE325955B (pt) * 1967-10-26 1970-07-13 Saab Ab
US3617881A (en) * 1969-11-24 1971-11-02 Tektronix Inc Dc voltage-testing and current-measuring circuit including differential amplifier
US3697871A (en) * 1970-03-19 1972-10-10 Leeds & Northrup Co Single element adjustment for span and gain
JPS5035418B1 (pt) * 1970-09-03 1975-11-15
US4037154A (en) * 1976-09-15 1977-07-19 The Perkin-Elmer Corporation Circuit for calibrating instruments
PL196115A1 (pl) * 1977-02-18 1978-09-11 Przed Automatyki Przemyslowej Sposob kompensacji wplywu temperatury w elektrycznych czujnikach wielkosci nieelektrycznych oraz uklad do stosowania sposobu
US4481967A (en) * 1979-11-15 1984-11-13 Rosemount Inc. Control circuit for current to pressure converter
US4315211A (en) * 1980-03-03 1982-02-09 Leeds & Northrup Company Preamplifier for voltage measuring instrument with non-interacting zero and span controls
US4332175A (en) * 1980-05-12 1982-06-01 Johnson & Johnson Counterbalance loading device
US4447780A (en) * 1981-10-28 1984-05-08 The Babcock & Wilcox Company Linearizing circuit and method of calibrating same
US4465075A (en) * 1982-03-29 1984-08-14 Motorola, Inc. On-chip pressure transducer and temperature compensation circuit therefor
US4630631A (en) * 1983-02-24 1986-12-23 The Babcock & Wilcox Company Pneumatic servo assembly for an electro-pneumatic converter
US4527583A (en) * 1983-07-12 1985-07-09 Dresser Industries, Inc. Electropneumatic transducer system
US4569221A (en) * 1983-10-24 1986-02-11 Snook Jr August M Portable electro-pneumatic calibrator
US4705067A (en) * 1986-05-13 1987-11-10 Coffee Curtis L Electric-to-pressure transducer
US4665938A (en) * 1986-09-30 1987-05-19 Rosemount Inc. Frequency feedback on a current loop of a current-to-pressure converter

Also Published As

Publication number Publication date
AU2502288A (en) 1989-05-18
EP0316292A3 (en) 1990-08-16
FI93260C (fi) 1995-03-10
FI885220A (fi) 1989-05-13
DE3850350T2 (de) 1995-01-12
AU597195B2 (en) 1990-05-24
EP0316292A2 (en) 1989-05-17
FI885220A0 (fi) 1988-11-11
EP0316292B1 (en) 1994-06-22
JPH01162112A (ja) 1989-06-26
FI93260B (fi) 1994-11-30
US4836011A (en) 1989-06-06
CA1306043C (en) 1992-08-04
JP2649714B2 (ja) 1997-09-03
DE3850350D1 (de) 1994-07-28

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 11/11/2003