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A viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. Thus, a rheometer can be considered as a special type of viscometer. Viscometers only measure under one flow condition
In general, either the fluid remains stationary and an object moves through it, or the object is stationary and the fluid moves past it. The drag caused by relative motion of the fluid and a surface is a measure of the viscosity.
| № | Distilled water |
||
|---|---|---|---|
| t1= 24℃ | |||
| τ0, s |
|||
| ρ0 = 0,99733 kg/m3 |
η0 = 0,00091 N∙s/m2 |
|---|
| № | Distilled water + alcohol |
||
|---|---|---|---|
| t1= 24℃ | |||
| τx1, s |
|||
| ρx = 0,80741 kg/m3 |
ηx = ? N∙s/m2 |
|---|
| № | Distilled water + alcohol |
||
|---|---|---|---|
| t2= 32℃ | |||
| τx2, s |
|||
A viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. Thus, a rheometer can be considered as a special type of viscometer. Viscometers only measure under one flow condition
In general, either the fluid remains stationary and an object moves through it, or the object is stationary and the fluid moves past it. The drag caused by relative motion of the fluid and a surface is a measure of the viscosity.
