CA2159090A1 - Vibrating Tube Densimeter - Google Patents

Vibrating Tube Densimeter

Info

Publication number
CA2159090A1
CA2159090A1 CA2159090A CA2159090A CA2159090A1 CA 2159090 A1 CA2159090 A1 CA 2159090A1 CA 2159090 A CA2159090 A CA 2159090A CA 2159090 A CA2159090 A CA 2159090A CA 2159090 A1 CA2159090 A1 CA 2159090A1
Authority
CA
Canada
Prior art keywords
natural frequency
vibrating tube
output data
flow rate
mass flow
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.)
Granted
Application number
CA2159090A
Other languages
French (fr)
Other versions
CA2159090C (en
Inventor
Palani Arunachalam
Robert Bruck
David Scott Mccollum
Joseph David Titlow
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.)
Micro Motion Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002159090A priority Critical patent/CA2159090C/en
Publication of CA2159090A1 publication Critical patent/CA2159090A1/en
Application granted granted Critical
Publication of CA2159090C publication Critical patent/CA2159090C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01F1/76—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

A Coriolis effect densimeter which produces density output data of improved accuracy by embodying the principal that the natural frequency of a vibrating tube filled with material decreases with an increase in the material mass flow rate. High accuracy output data is achieved by measuring the natural frequency of the tube as material flows therethrough, correcting the measured frequency to compensate for the decrease in natural frequency caused the material flow (mass flow rate) and using the corrected natural frequency in the material density computation.
CA002159090A 1993-03-24 1993-03-24 Vibrating tube densimeter Expired - Lifetime CA2159090C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002159090A CA2159090C (en) 1993-03-24 1993-03-24 Vibrating tube densimeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002159090A CA2159090C (en) 1993-03-24 1993-03-24 Vibrating tube densimeter

Publications (2)

Publication Number Publication Date
CA2159090A1 true CA2159090A1 (en) 1994-09-29
CA2159090C CA2159090C (en) 1998-06-09

Family

ID=4156652

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002159090A Expired - Lifetime CA2159090C (en) 1993-03-24 1993-03-24 Vibrating tube densimeter

Country Status (1)

Country Link
CA (1) CA2159090C (en)

Also Published As

Publication number Publication date
CA2159090C (en) 1998-06-09

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Legal Events

Date Code Title Description
EEER Examination request