EP0108758A1 - Viskosimeter - Google Patents
ViskosimeterInfo
- Publication number
- EP0108758A1 EP0108758A1 EP19830901342 EP83901342A EP0108758A1 EP 0108758 A1 EP0108758 A1 EP 0108758A1 EP 19830901342 EP19830901342 EP 19830901342 EP 83901342 A EP83901342 A EP 83901342A EP 0108758 A1 EP0108758 A1 EP 0108758A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- cylinder
- fluid
- velocity
- viscometer
- 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.)
- Withdrawn
Links
- 239000012530 fluid Substances 0.000 abstract description 47
- 239000004033 plastic Substances 0.000 abstract description 10
- 229920003023 plastic Polymers 0.000 abstract description 10
- 230000000284 resting effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000001073 sample cooling Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
Definitions
- a piston and cylinder visco-meter having a hollow cylinder with a closed first end and open second end, an undersized piston coaxially slideable within the cylinder, and a piston driving means capable in use of driving the piston through the cylinder towards the closed first end includes a pressure sensing element located within the cylinder adjacent the closed first end capable of providing an output signal indicative of the instantaneous pressure therein and a piston velocity sensing element capable of sensing element capable of providing an output signal Indicative of the instantaneous velocity of the piston.
- Figure 4 is a sectional view of an alternative piston suitable for use In the viscometer illustrated in Figure 1 when the sample fluid is an electro-rheological fluid.
- a transverse metal arm 31 is attached at one end to the piston rod 19, and to the other is bolted a metal bar 32 from which suspended a bar magnet 33 with a first pole 34 and a second pole 35.
- the transverse arm 31 and metal bar 32 act to hold the bar magnet 33 rigidly in parallel alignment with the piston rod 19 and hence the axis AA'.
- the bar magnet 33 is slideably located within a plastic tube 36 clamped to the cylinder block 1 In parallel alignment to the axis AA' by a tube clamp (not shown).
- a first helical coil 37 and a second helical 38 of insulated wire are wound about the plastic tube 36 each an identical number of times but in an opposite direction to the other.
- This viscosity ⁇ BP of the Bingham plastic at the indicated temperature may be calculated from the following equation III from which all insignificant factors have been excluded.
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)
- Reciprocating Pumps (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8214291 | 1982-05-17 | ||
| GB8214291 | 1982-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0108758A1 true EP0108758A1 (de) | 1984-05-23 |
Family
ID=10530400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19830901342 Withdrawn EP0108758A1 (de) | 1982-05-17 | 1983-05-11 | Viskosimeter |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0108758A1 (de) |
| WO (1) | WO1983004096A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599893A (en) * | 1983-04-18 | 1986-07-15 | National Research Development Corporation | Determining the level of contaminants in a hydraulic system |
| US10697876B1 (en) | 2019-07-12 | 2020-06-30 | Halliburton Energy Services, Inc. | Fluid analysis devices with shear stress sensors |
| US10591395B1 (en) * | 2019-07-12 | 2020-03-17 | Halliburton Energy Services, Inc. | Lubricity testing with shear stress sensors |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH431140A (de) * | 1965-09-09 | 1967-02-28 | Inventa Ag | Vorrichtung zum Messen der Viscosität von Flüssigkeiten oder Schmelzen |
| US3677070A (en) * | 1970-12-28 | 1972-07-18 | Norcross Corp | Magnetically coupled viscometer |
| FR2297412A1 (fr) * | 1975-01-08 | 1976-08-06 | Sp K Bjur | Viscosimetre capillaire |
-
1983
- 1983-05-11 WO PCT/GB1983/000136 patent/WO1983004096A1/en not_active Ceased
- 1983-05-11 EP EP19830901342 patent/EP0108758A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8304096A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1983004096A1 (en) | 1983-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT CH DE FR GB LI LU NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19840418 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: STANGROOM, JAMES EDWARD |