578
edits
Changes
Jump to navigation
Jump to search
mLine 31:
Line 31: − + + + + +
→Heat Test
For this experiment, we were testing to see if the fibers could withstand various temperatures. I cut 4-1cm light guides and 4-1cm scintillating fibers. I measured their lengths and widths. The fibers were tested under 4 conditions: 180 deg Fahrenheit with distilled water, 150 deg F with distilled, 180 deg F with tap, and 150 deg F with tap.
For this experiment, we were testing to see if the fibers could withstand various temperatures. I cut 4-1cm light guides and 4-1cm scintillating fibers. I measured their lengths and widths. The fibers were tested under 4 conditions: 180 deg Fahrenheit with distilled water, 150 deg F with distilled, 180 deg F with tap, and 150 deg F with tap.
On Monday, April 29th, the 150 degree F tap and distilled fibers were placed on a hot plate and set for approximately 50 hours. They were then removed from the hot plate and set to cool in a cabinet. The 180 degree F tap and distilled water was then placed on the hot plate on Wednesday, May 1st and left for approximately 50 hours.
On Monday, April 29th, the 150 degree F tap and distilled fibers were placed on a hot plate and set for approximately 50 hours. They were then removed from the hot plate and set to cool in a cabinet. The 180 degree F tap and distilled water was then placed on the hot plate on Wednesday, May 1st and left for approximately 50 hours.On May 2nd I measured the fibers from the 150 deg F tap and distilled and on May 3rd I measured the fibers from the 180 deg F tap and distilled and remeasured the lengths from the 150 deg F trial.
One problem that arose during this experiment was the difficulty in maintaining the proper temperature for the water. The hot plate did not accurately represent the temperature of the water in the vials, so a third vial was set up with a thermometer inside to properly gauge the water temperature. However, despite this, the temperature still varied throughout the experiment. At some point on May 2nd, Jim had noticed that the vials were bubbling and checked the temperature to be greater than 180 deg F and closer to 200 deg F which may have caused a difference.
Another problem worth noting was that the 180 deg F fibers were arced, which may be due to the fact that they naturally rested on the bottom of the vials on the hot plate, so one side of the fibers possible got hotter and therefore expanded more than the other side, causing the fibers to bow.