GB947107A - Improvements in or relating to electric circuits for supervising the value of an electric current - Google Patents

Improvements in or relating to electric circuits for supervising the value of an electric current

Info

Publication number
GB947107A
GB947107A GB4193661A GB4193661A GB947107A GB 947107 A GB947107 A GB 947107A GB 4193661 A GB4193661 A GB 4193661A GB 4193661 A GB4193661 A GB 4193661A GB 947107 A GB947107 A GB 947107A
Authority
GB
United Kingdom
Prior art keywords
winding
electric
current
supervising
relating
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
GB4193661A
Inventor
Victor Ronald Bailey
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB4193661A priority Critical patent/GB947107A/en
Publication of GB947107A publication Critical patent/GB947107A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G01F1/64—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by measuring electrical currents passing through the fluid flow; measuring electrical potential generated by the fluid flow, e.g. by electrochemical, contact or friction effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • G01F1/24—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters with magnetic or electric coupling to the indicating device

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

947,107. Transistor switching circuits. GENERAL ELECTRIC CO. Ltd. Oct. 19, 1962 [Nov. 23, 1961], No. 41936/61. Heading H3T. [Also in Division G1] A circuit for indicating whether an electric current at 3 is above or below a predetermined range, comprises a transistor amplifier 5 feeding one winding of a two winding relay 6, the other winding being energized in opposition by a preset current. The relay contacts 7 make to provide an indication when the current is outside its limits or when there is an open circuit or short circuit failure of any transistor in the amplifier or of either winding of the relay. A Zener diode 22 is connected between the supply lines 9, 15.
GB4193661A 1961-11-23 1961-11-23 Improvements in or relating to electric circuits for supervising the value of an electric current Expired GB947107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4193661A GB947107A (en) 1961-11-23 1961-11-23 Improvements in or relating to electric circuits for supervising the value of an electric current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4193661A GB947107A (en) 1961-11-23 1961-11-23 Improvements in or relating to electric circuits for supervising the value of an electric current

Publications (1)

Publication Number Publication Date
GB947107A true GB947107A (en) 1964-01-22

Family

ID=10422058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4193661A Expired GB947107A (en) 1961-11-23 1961-11-23 Improvements in or relating to electric circuits for supervising the value of an electric current

Country Status (1)

Country Link
GB (1) GB947107A (en)

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