GB804333A - Improvements in and relating to liquid current meters - Google Patents

Improvements in and relating to liquid current meters

Info

Publication number
GB804333A
GB804333A GB959954A GB959954A GB804333A GB 804333 A GB804333 A GB 804333A GB 959954 A GB959954 A GB 959954A GB 959954 A GB959954 A GB 959954A GB 804333 A GB804333 A GB 804333A
Authority
GB
United Kingdom
Prior art keywords
propeller
tube
probes
blade
liquid
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
GB959954A
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.)
HARRY RICHARD ADOLPH DEDOW
ROBERT FREDERICK JOHN KING
Original Assignee
HARRY RICHARD ADOLPH DEDOW
ROBERT FREDERICK JOHN KING
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 HARRY RICHARD ADOLPH DEDOW, ROBERT FREDERICK JOHN KING filed Critical HARRY RICHARD ADOLPH DEDOW
Priority to GB959954A priority Critical patent/GB804333A/en
Publication of GB804333A publication Critical patent/GB804333A/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
    • G01F1/05—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
    • G01F1/10—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 using rotating vanes with axial admission
    • G01F1/106—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 using rotating vanes with axial admission with electrostatic coupling to the indicating device

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

804,333. Rotary meters. DEBOW, H. R. A., and KING, R. F. J. April 1, 1955 [April 1, 1954], No. 9599/54. Class 110 (2). [Also in Group XXXVIII] Apparatus for measure quantity or velocity of fluid flow comprises a propeller rotating in the fluid flow and arranged to produce an output pulse each time part of the blade passes a reference point. The propeller is homogeneous with its boss and is made from an unplasticized polymethyl resin formed with an integral hollow spindle into which stainless steel pivots are inserted at the ends. The propeller is suspended for free rotation in jewelled bearings 5 supported at the axis of a polymethyl methacrylate tube 2, by radial fin 6. The tube 2 is supported in a flanged length of pipe by rubber rings 3, but holes are provided so that the flow is not excluded from the space between the rings. A fine conductive probe 8 of material resistant to corrosion by the liquid, e.g. gold, projects to the central tube as does a further probe 11. A third probe 12 enters the liquid surrounding the polymethyl methacrylate tube only. The propeller is so situated that the conductivity of the path between probes 8 and 12 varies each time a blade of the propeller approaches while that between 8 and 11 does not. The probes with intervening liquid, form two arms of a bridge circuit fed with a 10 kc/s. signal and balanced when no blade is near the probes. Thus the bridge output is a 10 kc/s. carrier modulated at a frequency dependent on the speed of rotation of the propeller.
GB959954A 1954-04-01 1954-04-01 Improvements in and relating to liquid current meters Expired GB804333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB959954A GB804333A (en) 1954-04-01 1954-04-01 Improvements in and relating to liquid current meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB959954A GB804333A (en) 1954-04-01 1954-04-01 Improvements in and relating to liquid current meters

Publications (1)

Publication Number Publication Date
GB804333A true GB804333A (en) 1958-11-12

Family

ID=9875099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB959954A Expired GB804333A (en) 1954-04-01 1954-04-01 Improvements in and relating to liquid current meters

Country Status (1)

Country Link
GB (1) GB804333A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040578A (en) * 1958-11-24 1962-06-26 Parkinson Cowan Appliances Ltd Fluid flow meters
US3143882A (en) * 1960-10-27 1964-08-11 Lynch Corp Fluid transducer
US3350938A (en) * 1960-05-03 1967-11-07 Rockwell Mfg Co Turbine flowmeter
US4164866A (en) * 1978-04-05 1979-08-21 Mannin Industries Ltd. Apparatus for monitoring amount and directions of fluid flow in fluid power systems
FR2479978A1 (en) * 1980-04-04 1981-10-09 Flonic Sa Electrode assembly for fluid flow measurement - comprises two isolated electrodes between which rotor blades pass, causing variations in resistance
US4333354A (en) * 1979-04-19 1982-06-08 Wilgood Corporation Liquid flow sensors
EP0057804A2 (en) * 1981-01-27 1982-08-18 Ottorino Barbuti A dynamic calorimeter for fluids with a self feeding electronic processor insensitive to the flow of external magnetic fields
GB2137363A (en) * 1983-03-30 1984-10-03 Johnson William N H Speed indicating device for a ski or the like
US4790195A (en) * 1985-06-07 1988-12-13 Feller Murray F Flow sensors
US4829833A (en) * 1985-11-12 1989-05-16 Feller Murray F Liquid impedance flow monitors
US4890499A (en) * 1983-06-07 1990-01-02 Model Screw Products, Inc. Fluid flow detectors

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040578A (en) * 1958-11-24 1962-06-26 Parkinson Cowan Appliances Ltd Fluid flow meters
US3350938A (en) * 1960-05-03 1967-11-07 Rockwell Mfg Co Turbine flowmeter
US3143882A (en) * 1960-10-27 1964-08-11 Lynch Corp Fluid transducer
US4164866A (en) * 1978-04-05 1979-08-21 Mannin Industries Ltd. Apparatus for monitoring amount and directions of fluid flow in fluid power systems
US4333354A (en) * 1979-04-19 1982-06-08 Wilgood Corporation Liquid flow sensors
FR2479978A1 (en) * 1980-04-04 1981-10-09 Flonic Sa Electrode assembly for fluid flow measurement - comprises two isolated electrodes between which rotor blades pass, causing variations in resistance
EP0057804A2 (en) * 1981-01-27 1982-08-18 Ottorino Barbuti A dynamic calorimeter for fluids with a self feeding electronic processor insensitive to the flow of external magnetic fields
EP0057804A3 (en) * 1981-01-27 1983-10-12 Ottorino Barbuti A dynamic calorimeter for fluids with a self feeding electronic processor insensitive to the flow of external magnetic fields
GB2137363A (en) * 1983-03-30 1984-10-03 Johnson William N H Speed indicating device for a ski or the like
US4890499A (en) * 1983-06-07 1990-01-02 Model Screw Products, Inc. Fluid flow detectors
US4790195A (en) * 1985-06-07 1988-12-13 Feller Murray F Flow sensors
US4829833A (en) * 1985-11-12 1989-05-16 Feller Murray F Liquid impedance flow monitors

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