A Water-Mercury Manometer


THIS INTERACTIVE JAVA APPLET WAS DEVELOPED AT UT AUSTIN BY Brian Adams, UNDER THE SUPERVISION OF PROFESSOR. Spyros A. Kinnas, 1997.

PERMISSION TO LINK TO THIS JAVA APPLET AND TO DOWNLOAD OR TO USE THE RELATED JAVA SOURCE CODE, MUST BE GRANTED BY PROFESSOR Spyros A. Kinnas ( kinnas@mail.utexas.edu ).


IMPORTANT NOTE (April 11, 2014): If you run a recent version of Java, for the following applets to work, you will need to go to Control Panel, click on Java, and change the Security settings from High to Medium. Then re-open your browser and click "Run" when asked "Do you want to run this application?"


This Applet represents a system containing two tanks, one is closed and the other is open to the atmosphere, with a manometer installed between them. The closed tank is isolated from the system by a ball valve. The fluid levels in both tanks are at the same height.

The pressure inside of the closed tank can be changed from a minimum of -80 kPa to a maximum of 80 kPa. The Applet will ignore pressures outside of this range. To change the pressure, type the new pressure in the text field and press "enter" on your keyboard. Notice that the pressure gauge displays the change. Predict which way the mercury will move in the manometer and by how much, then click on the red valve to see the results .

UT Manometer Exercise
Exercise Solution

UT Manometer Applet:



Last Revision 08/97