Actions:

#01. Sample preparation
#02. Insertion into the rotational viscometer
#03. Rotation speed setting
#04. Viscosity measurement (until a stable value is reached)
#05. Sample recovery
#06. Cleaning of equipment

This sequence outlines the procedure used to measure the viscosity of digital ink using a rotational viscometer. Operating principle: the working mechanism is based on the resistance exerted by the fluid against the rotation of an immersed body.

The key steps include::

• A cylinder or disc (called the “rotor”) is immersed in the fluid
• The rotor is set in motion at a controlled speed by a motor
• The fluid applies resistance to the rotation, proportional to its viscosity
• The viscometer measures the torque (the force needed to maintain rotation) and calculates the fluid’s viscosity based on this resistance

The viscometer is connected to a cryostat, a temperature control device used in laboratories and industrial environments to keep a precise and stable temperature range for various applications.
In summary, the rotational viscometer is an essential tool for monitoring and optimizing fluid quality in many industrial sectors.