SE8902496D0 - FLOW Saturation Device - Google Patents

FLOW Saturation Device

Info

Publication number
SE8902496D0
SE8902496D0 SE8902496A SE8902496A SE8902496D0 SE 8902496 D0 SE8902496 D0 SE 8902496D0 SE 8902496 A SE8902496 A SE 8902496A SE 8902496 A SE8902496 A SE 8902496A SE 8902496 D0 SE8902496 D0 SE 8902496D0
Authority
SE
Sweden
Prior art keywords
natural frequency
tube
bight portions
flowmeter
measuring
Prior art date
Application number
SE8902496A
Other languages
Swedish (sv)
Other versions
SE8902496L (en
Inventor
A Back-Pedersen
Original Assignee
Danfoss As
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 Danfoss As filed Critical Danfoss As
Publication of SE8902496D0 publication Critical patent/SE8902496D0/en
Publication of SE8902496L publication Critical patent/SE8902496L/en

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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
    • 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
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
    • G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
    • G01F1/8481—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having loop-shaped measuring conduits, e.g. the measuring conduits form a loop with a crossing point
    • G01F1/8486—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having loop-shaped measuring conduits, e.g. the measuring conduits form a loop with a crossing point with multiple measuring conduits

Landscapes

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

Abstract

In a flowmeter 101 working on the Coriolis principle, measuring-tube bight portions 111, 112 are excited into oscillation at the n<th> natural frequency. The bight portions are so arranged that their (n + 1)<th> natural frequency lies in the range of 0.7 fn to 1.5 fn but outside of resonance caused by the first natural frequency. In particular, the length of the measuring-tube bight portions 111, 112 can be at least 6 times their height. In that way the sensitivity of the flowmeter can be improved. A plurality of exciters and sensors are positioned along the tube R, which is of continuous construction. <IMAGE>
SE8902496A 1988-08-26 1989-07-10 FLOW Saturation Device SE8902496L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3829062A DE3829062A1 (en) 1988-08-26 1988-08-26 FLOW MEASURING DEVICE (IV) WORKING ACCORDING TO THE CORIOLIS PRINCIPLE

Publications (2)

Publication Number Publication Date
SE8902496D0 true SE8902496D0 (en) 1989-07-10
SE8902496L SE8902496L (en) 1990-02-27

Family

ID=6361683

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8902496A SE8902496L (en) 1988-08-26 1989-07-10 FLOW Saturation Device

Country Status (9)

Country Link
JP (1) JPH02107925A (en)
DE (1) DE3829062A1 (en)
DK (1) DK416989A (en)
ES (1) ES2014875A6 (en)
FR (1) FR2635866A1 (en)
GB (1) GB2222456A (en)
IT (1) IT1233178B (en)
NL (1) NL8902140A (en)
SE (1) SE8902496L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701107B1 (en) * 1994-09-09 2000-03-15 Fuji Electric Co. Ltd. Vibration measuring instrument
US5831178A (en) * 1995-08-29 1998-11-03 Fuji Electric Co., Ltd. Vibration type measuring instrument
DE19652002C2 (en) * 1995-12-15 2003-03-27 Flowtec Ag Vibration meter
HU225071B1 (en) * 2000-12-21 2006-06-28 Sandor Kun Combined mass flow meter device and method for measuring mass flow of a non solid medium

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865201A (en) * 1954-08-26 1958-12-23 Roth Wilfred Gyroscopic mass flowmeter
US4127028A (en) * 1977-06-07 1978-11-28 Halliburton Company Coriolis mass flow rate metering means
US4311054A (en) * 1978-11-13 1982-01-19 Halliburton Company Mass flowmeter with sensor gain control
DE3534288A1 (en) * 1985-09-26 1987-04-02 Danfoss As MASS FLOW METER ACCORDING TO THE CORIOLIS PRINCIPLE
US5423221A (en) * 1986-02-11 1995-06-13 Abb K-Flow Inc. Mass flow measuring device
EP0239679B1 (en) * 1986-04-04 1988-09-07 Krohne Messtechnik Gmbh & Co. Kg Mass flow meter for fluids with coriolis force detecting devices
US4730501A (en) * 1986-05-19 1988-03-15 Exac Corporation Single tube parallel flow coriolis mass flow sensor
GB2192714A (en) * 1986-07-16 1988-01-20 Schlumberger Electronics Coriolis mass flow meter
US4803867A (en) * 1987-04-28 1989-02-14 Dahlin Erik B Fluid measurement apparatus providing flow tube strain relief
US5115683A (en) * 1988-09-27 1992-05-26 K-Flow Division Of Kane Steel Co., Inc. Coriolis mass flow meter adapted for low flow rates

Also Published As

Publication number Publication date
ES2014875A6 (en) 1990-07-16
IT8967719A0 (en) 1989-08-25
DE3829062C2 (en) 1992-07-09
JPH02107925A (en) 1990-04-19
NL8902140A (en) 1990-03-16
DK416989D0 (en) 1989-08-24
GB2222456A (en) 1990-03-07
SE8902496L (en) 1990-02-27
DK416989A (en) 1990-02-27
IT1233178B (en) 1992-03-16
FR2635866A1 (en) 1990-03-02
GB8919407D0 (en) 1989-10-11
DE3829062A1 (en) 1990-03-08

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