Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
  • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
• • 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
  • G01F1/34—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 measuring pressure or differential pressure
  • G01F1/36—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
  • G01F1/363—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
• • 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
  • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
  • G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
  • G01F1/88—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure with differential-pressure measurement to determine the volume flow
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06G—ANALOGUE COMPUTERS
  • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
  • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor
  • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for multiplication or division
  • G06G7/163—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for multiplication or division using a variable impedance controlled by one of the input signals, variable amplification or transfer function
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06G—ANALOGUE COMPUTERS
  • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
  • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor
  • G06G7/20—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for evaluating powers, roots, polynomes, mean square values or standard deviation
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06G—ANALOGUE COMPUTERS
  • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
  • G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
  • G06G7/57—Analogue computers for specific processes, systems or devices, e.g. simulators for fluid flow ; for distribution networks
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06J—HYBRID COMPUTING ARRANGEMENTS
  • G06J1/00—Hybrid computing arrangements
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
  • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
  • H03M1/12—Analogue/digital converters
  • H03M1/22—Analogue/digital converters pattern-reading type

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• General Physics & Mathematics (AREA)
• Mathematical Physics (AREA)
• Computer Hardware Design (AREA)
• Fluid Mechanics (AREA)
• Software Systems (AREA)
• Automation & Control Theory (AREA)
• Evolutionary Computation (AREA)
• Fuzzy Systems (AREA)
• Power Engineering (AREA)
• Measuring Volume Flow (AREA)
• Measuring Fluid Pressure (AREA)
• Amplifiers (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22578272

Family Applications (1)

Country Status (9)

Families Citing this family (7)

Family Cites Families (5)

• 1971
  • 1971-07-08 US US00160750A patent/US3732406A/en not_active Expired - Lifetime
• 1972
  • 1972-05-01 JP JP47043571A patent/JPS5214984B1/ja active Pending
  • 1972-06-28 IT IT26293/72A patent/IT956883B/it active
  • 1972-07-03 DE DE2232544A patent/DE2232544A1/de not_active Withdrawn
  • 1972-07-06 CH CH1014572A patent/CH571216A5/xx not_active IP Right Cessation
  • 1972-07-06 CA CA146,530A patent/CA980906A/en not_active Expired
  • 1972-07-06 GB GB3166672A patent/GB1383056A/en not_active Expired
  • 1972-07-06 GB GB2722774A patent/GB1383057A/en not_active Expired
  • 1972-07-10 NL NL7209561A patent/NL7209561A/xx not_active Application Discontinuation
  • 1972-07-10 FR FR7224891A patent/FR2145346A5/fr not_active Expired

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