The program below, BOYLE, is used by your TI-86 together with the TI-CBL to make and record pressure readings. If your workstation has a TI-Graph Link cable and the appropriate software installed then you can download the program from this computer to the calculator. Otherwise you can transfer the program from your instructor's TI-86 using a linking cable or, as a last resort, you can type it in.
There have been numerous problems downloading programs for TI graphing calculators using the method above. If that method works, it is very clean. Sometimes, however, it doesn't work. In that case we can fall back on an older method, uuencoding, that is less user-friendly but more reliable. Click here for more information about this method. Then click here for a uuencoded (text file).
| After you've entered the program into your TI-86, connect the TI-86 to the CBL using the linking cable and plug the cable from the pressure sensor into the channel 1 port of the CBL. Make sure that the TI-CBL is turned on. Run the program BOYLE in the usual way. You should se the screen at the right prompting you to set the plunger at 20 cc., open and close the relief valve, and then press the TRIGGER key on the TI-CBL. |
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| Follow the instructions. Set the plunger at 20 cubic centimeters. Then open and close the pressure relief valve. For the remainder of this experiment the pressure relief valve should remain closed. You should see the READY indicator on the TI-CBL. Now press the TRIGGER key on the TI-CBL. It will make one pressure reading that will be recorded by the TI-86 producing the screen at the right. This screen shows one reading and the predictions made by Boyle's law for subsequent readings. |
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Continue in this way, making and recording a series of pressure measurements with the volume = 20, 19, 18, 17, ... 1. Be sure to pause briefly after each reading to allow the TI-86 time to record and graph the reading.
The reading are stored in the list L4. You can examine them using the usual TI-86 capabilities.