- Experiment 1 Viscosity Measurement Test Performing The Experiment 1 First Of All An Amount Of 16 Ml Fluid Sample Is N 1 (179.84 KiB) Viewed 9 times
1.General informationabouttheviscosity.
2.What is the viscosity of the liquid used in the
experiment?Calculate.
3.If the same experiment was done with the same
angularvelocityand using toothpaste, how much torque would have to
be applied to the mechanism?
4.If the same experiment was done at the same torque and using
olive oil, what would the spindle rotation frequency be?
NOTE : PLEASE WRITE IN COMPUTER TEXT
Experiment 1: Viscosity Measurement Test Performing the experiment 1. First of all, an amount of 16 ml fluid sample is needed for tests in which UL adaptor is used. 2. After spilling the liquid into the inner reservoir, the spindle with UL adaptor is immersed into the reservoir. It should be careful about air bobbles not to form around the spindle geometry. 3. The reservoir and the spindle are mounted to the water jacked and UL System is connected to the viscometer. 4. Connections between the water jacked and the constant temperature bath are performed. After the desired temperature is adjusted, it is waited for 30 minutes for the sample to reach also the desired temperature. 5. The device is turned on after the desired temperature is couth from the value measured by the probe. 6. Definitely, the device should be reset manually or by the computer, prior to connect with the spindle 7. After the reset process was ended, the percentage torque read from the device must be max % ±1. 8. After the reset process was ended, the connection between the spindle and the device should be performed very carefully in order to get measurement datà from the device. The connection is made by pushing slightly fixing the tightening shaft of the viscometer and fixing the nut of the spindle. It should be careful about not applying excessive force. 9. After mounting the spindle, measurements can be initialized by starting the motor of the device. 10. The viscosity of the fluid can be calculated based on the torque level observed during the measurement, the rotational speed and the geometrical features of the spindle and UL adaptor; besides, it can be also informed about the characteristics of the fluid based upon the graphs representing the relationship between these values. By means of the viscometer and the temperature bath, it can be observed how the viscosity changes depending upon the shear stress applied on the fluid, temperature and time. Taking a value between % 10 and % 90 of device power from the measuring range tables of the used spindle is significant.