The present invention relates to a viscosity measurement device. According to one aspect of the present invention, provided is a viscosity measurement device comprising: a housing which has an inlet port, an outlet port and a measurement space positioned between the inlet port and the outlet port; a magnetic body arranged in the measurement space; an electromagnet for moving the magnetic body; a position measurement part for measuring the position of the magnetic body; a flow rate measurement part for measuring the flow rate of fluid which flows in the measurement space; and a control part for measuring the viscosity of the fluid on the basis of the strength of a magnetic field generated by the electromagnet and the shear strain rate of the fluid which passes through the measurement space.

A viscosity measuring method and apparatus including (1) a step in which a plunger having an outer radius R.sub.i is immersed into a sample in a container having an inner radius R.sub.0, by an initial depth L.sub.0; (2) a step in which the plunger is further immersed at a velocity v.sub.p1 by a distance ΔL.sub.1, and a force applied to the plunger is measured; (3) a step in which a peak value F.sub.T1 of the force is obtained; (4) a step in which the plunger is returned to the initial depth L.sub.0; (5) a step in which the plunger is further immersed at a velocity v.sub.p2 by a distance ΔL.sub.2, and a force applied to the plunger is measured; (6) a step in which a peak value F.sub.T2 of the force is obtained; (7) a step in which a flow behavior index n is obtained.

A viscosity measuring method and apparatus including (1) a step in which a plunger having an outer radius R.sub.i is immersed into a sample in a container having an inner radius R.sub.0, by an initial depth L.sub.0; (2) a step in which the plunger is further immersed at a velocity v.sub.p1 by a distance ΔL.sub.1, and a force applied to the plunger is measured; (3) a step in which a peak value F.sub.T1 of the force is obtained; (4) a step in which the plunger is returned to the initial depth L.sub.0; (5) a step in which the plunger is further immersed at a velocity v.sub.p2 by a distance ΔL.sub.2, and a force applied to the plunger is measured; (6) a step in which a peak value F.sub.T2 of the force is obtained; (7) a step in which a flow behavior index n is obtained.

A system and a method are provided for determining a viscosity of a fluid in a rock formation. The method includes determining a Stoneley mobility using a Stoneley wave measurement in a rock formation containing a fluid; determining a wireline formation tester (WFT) downhole fluid analysis (DFA) mobility by using a wireline formation tester in the rock formation; and determining a viscosity of the fluid based on the Stoneley mobility and the wireline formation tester (WFT) downhole fluid analysis (DFA) mobility.

A system and a method are provided for determining a viscosity of a fluid in a rock formation. The method includes determining a Stoneley mobility using a Stoneley wave measurement in a rock formation containing a fluid; determining a wireline formation tester (WFT) downhole fluid analysis (DFA) mobility by using a wireline formation tester in the rock formation; and determining a viscosity of the fluid based on the Stoneley mobility and the wireline formation tester (WFT) downhole fluid analysis (DFA) mobility.

The device is a viscosity measurement indicator for measuring the viscosity of thickened liquids and liquid foods for Dysphagia patients using the IDDSI Framework wherein a sample of thickened liquids or liquid food is taken and introduced to the device to show the viscosity level based on the IDDSI Framework. The device may be a card or a cylinder.

Methods of measuring the viscosity of thickened liquids and liquid foods using the devices are also proposed.

A Kit for measuring the Viscosity of thickened liquids and liquid foods is also proposed. An accessory to help in the taking of viscosity measurement using the invention is also proposed.

The device is a viscosity measurement indicator for measuring the viscosity of thickened liquids and liquid foods for Dysphagia patients using the IDDSI Framework wherein a sample of thickened liquids or liquid food is taken and introduced to the device to show the viscosity level based on the IDDSI Framework. The device may be a card or a cylinder.

Methods of measuring the viscosity of thickened liquids and liquid foods using the devices are also proposed.

A Kit for measuring the Viscosity of thickened liquids and liquid foods is also proposed. An accessory to help in the taking of viscosity measurement using the invention is also proposed.

A system for investigating rheological properties of grease, the system including grease sample preparation arrangement for preparing a grease sample with a predetermined quantity of grease, at least two sample holder plates for holding the grease sample by sandwiching the grease sample between the sample holder plates, wherein at least one of the sample holder plates is transparent, and a loading system for generating a predetermined force acting on the grease sample sandwiched between the sample holder plates by pressing on the sample holder plates such that a spot formed by the grease sample on the sample holder plates is expanded. The loading system can include at least one transparent portion enabling a continuous observation of the expansion of the spot while the predetermined force is acting on the grease sample.

A system for investigating rheological properties of grease, the system including grease sample preparation arrangement for preparing a grease sample with a predetermined quantity of grease, at least two sample holder plates for holding the grease sample by sandwiching the grease sample between the sample holder plates, wherein at least one of the sample holder plates is transparent, and a loading system for generating a predetermined force acting on the grease sample sandwiched between the sample holder plates by pressing on the sample holder plates such that a spot formed by the grease sample on the sample holder plates is expanded. The loading system can include at least one transparent portion enabling a continuous observation of the expansion of the spot while the predetermined force is acting on the grease sample.

A flow test machine 2 which, for example, is able to be used for viscosity tests on plastics, comprises a test piston 4, a test channel 38, at least one test weight 72 and a drive unit 92. The test piston 4 is able to move through the test channel 38 by means of a weight force 79 of the test weight 72. The test weight 72 is able to be loaded by an actuating additional force 108, 108′ by means of the drive unit 92 between a starting position 151 and an end position. The actuating additional force 108 enables a movement of the test piston 4 in the direction of the weight force 79, said movement being accelerated in comparison with an effect of the weight force 79. In a melt viscosity test, after a heating step, a thermoplastic plastic is pressed through a test channel 38 by a test piston 4. In a measurement preparation step and/or a cleaning step, the test mass is lowered along a weight force direction 79 under the influence of an actuating additional force 108, 108′. In a method for cleaning, a cleaning step is undertaken by means of an actuating additional force 108, 108′ from the drive unit 92, said drive unit 92 serving to drive a test piston movement during a melt viscosity test.