DE599922C - Outflow viscometer - Google Patents

Outflow viscometer

Info

Publication number
DE599922C
DE599922C DEG83227D DEG0083227D DE599922C DE 599922 C DE599922 C DE 599922C DE G83227 D DEG83227 D DE G83227D DE G0083227 D DEG0083227 D DE G0083227D DE 599922 C DE599922 C DE 599922C
Authority
DE
Germany
Prior art keywords
outflow
capillary
viscometer
transition
ring surface
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
DEG83227D
Other languages
German (de)
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.)
Glasplakatefabrik Union G M B
Original Assignee
Glasplakatefabrik Union G M B
Publication date
Priority to DEG83227D priority Critical patent/DE599922C/en
Application granted granted Critical
Publication of DE599922C publication Critical patent/DE599922C/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
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G01N13/02—Investigating surface tension of liquids

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)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Description

Ausflußviskosimeter Gegenstand des Hauptpatents 5922 703 und des Zusatzpatents 598 98o sind Viskosimeter, bei denen sich an ein mit zwei Marken versehenes Gefäß eine mit diesem verbundene, senkrecht stehende Kapillare und an diese ein erweitertes Rohr anschließt, das an seinem unteren Ende eine Abschrägung aufweist, derart, daß. die aus der Kapillare fließende Flüssigkeit nur an der Wandung des Rohres entlangfließt und es nicht ausfüllt. Am übergang der Kapillare zu dem weiten Rohr bildet sich eine Flüssigkeitsoberfläche aus, die, wenn das untere Rohr hinlänglich weit ist, nur eine verhältnismäßig schwache Krümmung aufweist und dementsprechend nur eine geringe Zugwirkung ausübt. Bei Flüssigkeiten mit sehr verschiedenen Oberflächenspannungen kann aber gleichwohl diese Wirkung noch so stark sein, daß sie unter Umständen stört. Dieser Fehler wird vermieden, wenn man eine Form des Übergangs wählt, welche die Zeichnung zeigt.Outflow viscometer The subject of the main patent 5922 703 and the additional patent 598 98o are viscometers in which a vertical capillary connected to a vessel provided with two marks is connected to this and an enlarged tube with a bevel at its lower end is connected to this , that. the liquid flowing out of the capillary only flows along the wall of the tube and does not fill it. At the transition from the capillary to the wide tube, a liquid surface is formed which, if the lower tube is sufficiently wide, only has a relatively weak curvature and accordingly only exerts a slight tensile effect. In the case of liquids with very different surface tensions, however, this effect can still be so strong that it may interfere under certain circumstances. This mistake can be avoided by choosing a form of transition that the drawing shows.

Unterhalb der Kapillare d befindet sich eine horizontale ringförmige Fläche. Wenn Luft in die Erweiterung e .eindringt, so bildet sich kein konkaver Meniskus, sondern eine der horizontalen Ringfläche parallele ebene Flüssigkeitsoberfläche g, die auch in der Mitte unterhalb der Kapillare vollkommen eben ist und in Richtung auf die Kapillare keinerlei Zug- oder Druckwirkungen ausübt. Diese Form des Übergangs kann sowohl bei der unten offenen Form des Viskosimeters nach dem Hauptpatent als auch bei der unten geschlossenen Form nach dem erwähnten Zusatzpatent angewendet werden.Below the capillary d there is a horizontal ring-shaped one Area. If air enters the extension, no concave is formed Meniscus, but a flat liquid surface parallel to the horizontal ring surface g, which is also perfectly flat in the middle below the capillary and in the direction does not exert any tensile or compressive effects on the capillary. This form of transition can be used both with the open-bottom form of the viscometer according to the main patent as also used in the form closed below according to the additional patent mentioned will.

Dadurch, daß diese ebene, nach unten gerichtete Flüssigkeitsoberfläche keinerlei Druck-oder Zugwirkung ausübt, kann man in diesem Apparat auch die Oberflächenspannung aus der Steighöhe bestimmen. Zu diesem Zweck ist an der Kapillare d ,eine Skala x angebracht, deren Nullpunkt in der Ebene der horizontalen Ringfläche liegt.Because this flat, downward-facing liquid surface does not exert any pressure or tensile effect, one can also measure the surface tension in this apparatus determine from the height of rise. For this purpose there is a scale on the capillary d x attached, the zero point of which lies in the plane of the horizontal ring surface.

Claims (2)

PATENTANSPRÜCHE; i. Ausflußviskosimeter nach Patent 592 7o3, dadurch gekennzeichnet, daß der Übergang von der Innenfläche der Kapillare zu derjenigen des erweiterten Rohres (e) durch eine horizontale und .ebene Ringfläche gebildet wird. PATENT CLAIMS; i. Outflow viscometer according to patent 592 703, thereby characterized in that the transition from the inner surface of the capillary to that of the expanded tube (e) formed by a horizontal and. Eben ring surface will. 2. Ausflußviskosimeter nach Anspruch i, dadurch gekennzeichnet, daß zum Zwecke der Steighöhenbestimmung an der Kapillare eine Skala angebracht ist, deren Nullpunkt in der Ebene der horizontalen Ringfläche liegt.2. outflow viscometer according to claim i, characterized in that for the purpose To determine the height of rise, a scale is attached to the capillary whose zero point lies in the plane of the horizontal ring surface.
DEG83227D Outflow viscometer Expired DE599922C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG83227D DE599922C (en) Outflow viscometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG83227D DE599922C (en) Outflow viscometer

Publications (1)

Publication Number Publication Date
DE599922C true DE599922C (en) 1934-07-11

Family

ID=7137739

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG83227D Expired DE599922C (en) Outflow viscometer

Country Status (1)

Country Link
DE (1) DE599922C (en)

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