Texas Instruments CBL 2, Руководство по началу работы

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32 G
ETTING
S
TARTED WITH THE
CBL 2™ S
YSTEM
© 2000, 2003 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
Batteries in Series
Set-up
First, you will use the CBL 2 and your calculator to measure the voltage of each of
your five batteries. Next you will measure the voltage of one battery, then a series
of two batteries, then three, and so on. It is recommended that you work in a
group. There are three tasks that will need to be accomplished:
♦ Taking measurements with voltage leads.
♦ Operating the calculator and CBL 2.
♦ Positioning the batteries.
Use five batteries of the same size and voltage. It is best if you use new batteries or
a set of batteries that have been used in the same device.
The batteries can be held in place using a battery holder, a ruler with a ridge down
the center, or even the grout line between tiles on a table or floor.
The batteries should be lined up with a positive terminal (+) touching a negative
terminal (
−
).
Data Collection
1.
Connect the CBL 2 to your calculator using the unit-to-unit cable. Connect the
voltage sensor to the CBL 2 in Channel 1 [CH 1].
2.
On the calculator, run the DataMate program or app.
DataMate automatically identifies the voltage sensor and
loads a default experiment. The Main Screen of
DataMate is shown on the right.
(If the MODE setting is different than that shown, press
‘
to reset the program.)
3.
Place one battery in a battery holder or on a ruler. Touch and hold the
appropriate voltage leads to the appropriate terminal, red to (+) and black to (
−
).
You have now created a series circuit with the CBL 2.