GB2013900A - Liquid densitometer - Google Patents

Liquid densitometer

Info

Publication number
GB2013900A
GB2013900A GB7902779A GB7902779A GB2013900A GB 2013900 A GB2013900 A GB 2013900A GB 7902779 A GB7902779 A GB 7902779A GB 7902779 A GB7902779 A GB 7902779A GB 2013900 A GB2013900 A GB 2013900A
Authority
GB
United Kingdom
Prior art keywords
fluid
float
density
resistances
zones
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
GB7902779A
Other versions
GB2013900B (en
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB2013900A publication Critical patent/GB2013900A/en
Application granted granted Critical
Publication of GB2013900B publication Critical patent/GB2013900B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
    • G01N9/12—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
    • G01N9/18—Special adaptations for indicating, recording, or control

Landscapes

  • 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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

In the device for, and method of, producing an electrical signal dependent on the density of an electrically conductive fluid, at least one float (5) is immersed in the fluid, the or each float (5) having a different electrical conductivity to the fluid. Electrical detection means are then used to monitor the resistances of first and second zones (3, 3') within the fluid, which zones (3, 3') are so arranged that, within the measuring range of the device, the higher the density of the fluid the greater the proportion of (one of) the float(s) (5) within the first zone (3) and the less the proportion of (one of) the float(s) (5) within the second zone (3'). These means may be constituted by three electrodes (E1, E2, E3) connected in a bridge circuit (4), the resistances (R1, R3) of the first and second zones (3, 3') forming two adjacent arms of the bridge circuit and further resistances (R2, R4) forming the other two arms. The voltage UM formed at the diagonal of the bridge circuit is dependent on the ratio of these resistances and therefore on the density of the fluid. The method has application generally for measuring the density of electrolytes. <IMAGE>
GB7902779A 1978-01-30 1979-01-26 Device for and method of producing an electrical signal dependent on the density of an electrically conductive fluid Expired GB2013900B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782803912 DE2803912C3 (en) 1978-01-30 1978-01-30 Device for obtaining an electrical measurement signal proportional to the density of an electrically conductive liquid

Publications (2)

Publication Number Publication Date
GB2013900A true GB2013900A (en) 1979-08-15
GB2013900B GB2013900B (en) 1982-08-04

Family

ID=6030714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902779A Expired GB2013900B (en) 1978-01-30 1979-01-26 Device for and method of producing an electrical signal dependent on the density of an electrically conductive fluid

Country Status (4)

Country Link
JP (1) JPS54111375A (en)
DE (1) DE2803912C3 (en)
FR (1) FR2415800A1 (en)
GB (1) GB2013900B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605298A1 (en) * 1992-12-30 1994-07-06 SEXTANT Avionique Method and sensor for measuring the density of a fluid and a mass gauge using such a sensor
EP3982106A1 (en) * 2020-10-12 2022-04-13 Commissariat à l'énergie atomique et aux énergies alternatives Device for automatically measuring the density of a liquid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE722277C (en) *
US2273850A (en) * 1940-10-14 1942-02-24 Ewald Philip Specific gravity recording system
US2574432A (en) * 1945-09-17 1951-11-06 Guy E Brown Instrument for measuring or indicating the specific gravity of liquids

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605298A1 (en) * 1992-12-30 1994-07-06 SEXTANT Avionique Method and sensor for measuring the density of a fluid and a mass gauge using such a sensor
EP3982106A1 (en) * 2020-10-12 2022-04-13 Commissariat à l'énergie atomique et aux énergies alternatives Device for automatically measuring the density of a liquid
FR3115111A1 (en) * 2020-10-12 2022-04-15 Commissariat A L'energie Atomique Et Aux Energies Alternatives AUTOMATIC LIQUID DENSITY MEASUREMENT DEVICE
US11913968B2 (en) 2020-10-12 2024-02-27 Commissariat A L'energie Atomique Et Aux Energies Alternatives Automatic liquid density measurement device

Also Published As

Publication number Publication date
DE2803912C3 (en) 1980-10-23
FR2415800B1 (en) 1982-10-22
FR2415800A1 (en) 1979-08-24
DE2803912A1 (en) 1979-10-18
GB2013900B (en) 1982-08-04
JPS54111375A (en) 1979-08-31
DE2803912B2 (en) 1980-02-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee