Viscometer measurement principle

The falling ball viscometer uses the simple but accurate Höppler principle to measure the viscosity of a Newtonian liquid by measuring the time it takes for a ball to pass through a filled sample tube under the force of gravity.

The principle of the viscometer is to determine the fall time of a ball of known diameter and density by approaching a vertical glass tube of known diameter and length, filled with the fluid to be measured.

The viscosity of a sample liquid is related to the time it takes for a ball to travel a distance between two designated lines on a cylindrical tube.

Turning the measuring tube causes the ball to return and time can be remeasured over the same distance. The result is a dynamic viscosity with standard dimensions.

The speed of the ball falling through the liquid in the tube depends on the viscosity of the liquid. As a ball moves through a liquid, it is affected by gravity, buoyancy, and friction: gravity as a downward force, and buoyancy and friction as an upward force.

The falling ball viscometer uses the simple but accurate Höppler principle to measure the viscosity of a Newtonian liquid by measuring the time it takes for a ball to pass through a filled sample tube under the force of gravity.

The principle of the viscometer is to determine the fall time of a ball of known diameter and density by approaching a vertical glass tube of known diameter and length, filled with the fluid to be measured.

The viscosity of a sample liquid is related to the time it takes for a ball to travel a distance between two designated lines on a cylindrical tube.

Turning the measuring tube causes the ball to return and time can be remeasured over the same distance. The result is a dynamic viscosity with standard dimensions.

The speed of the ball falling through the liquid in the tube depends on the viscosity of the liquid. As a ball moves through a liquid, it is affected by gravity, buoyancy, and friction: gravity as a downward force, and buoyancy and friction as an upward force.