Procedures-hydrostatucs.docx

PROCEDURES 1. An Edibon Hydrostatics Pressure System was set on a flat surface. Using the spirit level, adjust the feet until the air bubble is in the center of the black circle. 2. After taking measurements, wipe down the surface of the quadrant with a wet rag to remove surface tension and prevent air bubbles from forming 3. Add the balance pan to the end of the lever arm. Balance the arm by adjusting the counterbalance until the central index mark on the beam reaches the level indicator. (The balance arm incorporates two locating dowels and clamping screw for securing the quadrant in the correct position on the arm. The arm pivots on top of the flotation tank via machine knife edges.

4. Fill the chamber with water until the balance bridge arm was level and the height read zero (at the bottom of the quadrant)

5. Known masses (kg) of 400 g were added to the left side of the arm.

6. To balance the moment about the pivot, water was drained from the chamber until the balance bridge arm was level again.

7. To make sure that the balance bridge is leveled, keep the machine knife edges aligned on the line indicated. The drain was also used to help level the arm. The corresponding water height (mm) was recorded.

8. This process was repeated for the partially submerged surface as mass was deducted in increments of 20 g until the water height reached approximately 10 mm.