CA939758A - Two wire current transmitter responsive to a sensor input - Google Patents

Two wire current transmitter responsive to a sensor input

Info

Publication number
CA939758A
CA939758A CA027,964A CA27964A CA939758A CA 939758 A CA939758 A CA 939758A CA 27964 A CA27964 A CA 27964A CA 939758 A CA939758 A CA 939758A
Authority
CA
Canada
Prior art keywords
sensor input
wire current
current transmitter
transmitter responsive
responsive
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
Application number
CA027,964A
Other languages
English (en)
Other versions
CA27964S (en
Inventor
Earl A. Grindheim
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.)
Emerson Process Management Ltd
Original Assignee
Rosemount Engineering Co Ltd
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 Engineering Co Ltd filed Critical Rosemount Engineering Co Ltd
Application granted granted Critical
Publication of CA939758A publication Critical patent/CA939758A/en
Expired 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/225—Measuring circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
    • G01L9/04—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Amplifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
CA027,964A 1967-08-21 1968-08-20 Two wire current transmitter responsive to a sensor input Expired CA939758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66198867A 1967-08-21 1967-08-21

Publications (1)

Publication Number Publication Date
CA939758A true CA939758A (en) 1974-01-08

Family

ID=24655935

Family Applications (1)

Application Number Title Priority Date Filing Date
CA027,964A Expired CA939758A (en) 1967-08-21 1968-08-20 Two wire current transmitter responsive to a sensor input

Country Status (8)

Country Link
JP (1) JPS4942936B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA939758A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH495598A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1766959B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1588247A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1240493A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL164408C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE369638B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411715B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-10-05 1979-05-17
DE3248754A1 (de) * 1982-12-31 1984-07-12 bso Steuerungstechnik GmbH, 6603 Sulzbach Schaltungsanordnung
DE4411805B4 (de) * 1994-04-06 2008-08-28 Michael Riedel Transformatorenbau Elektronik Gmbh Stromsteller

Also Published As

Publication number Publication date
DE1766959B2 (de) 1973-12-20
GB1240493A (en) 1971-07-28
NL164408B (nl) 1980-07-15
FR1588247A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-04-10
JPS4942936B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-11-18
NL6811844A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-02-25
NL164408C (nl) 1980-12-15
CH495598A (fr) 1970-08-31
DE1766959A1 (de) 1971-09-23
SE369638B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-09-09

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