Casio EA-100 Spécifications télécharger pdf (Page 11)

V. Using the Data Logger to Measure the Rate of Cooling (Suggested

Student Activity)

Instructor Directions: The goal here is to simply apply the data logger setting to a

real world relationship. There are many labs which give extensive setup and

directions as well as synthesis questions. Our goal is to simply help the

students/workshop participants become comfortable with the EA100 Data Logger

capability, and later will focus more on the relationships themselves.

Directions for Participants:

Get into pairs of two, working as a team and sharing the EA100. A glass of chilled water

is also necessary for this experiment. Plug in the Temperature probe into the EA100.

Make sure it was “recognized”.

Enter into the data log area and choose an appropriate sample rate and number of samples

so that the total time is about one minute, and enough samples are taken to create an

accurate picture. (I usually use 1 second, and 60 samples.) Choose 1 for the time

definition area. If you don’t remember how to set up and activate the data log mode then

refer to the previous page, Summary of Data Log Commands, or to the Appendix, The

Quick Start Guide.

When READY is displayed, place the temperature probe in the glass of cooled water and

simultaneously hit trigger. A “Blinking” SAMPLING should be displayed on the left hand

side. And then eventually a DONE will also be displayed when it is complete. Remember

to view each sample by hitting datalog repeatedly. If you chose 60 samples then there will

be 60 values to toggle through.

Instructor:

1. Make sure each student is able to setup the Data Logger, and recognize which setting

they are currently in.

2. Discuss the maximum and minimum temperatures that were observed.

3. Discuss the positive and negatives of taking many samplings.

4. What can you now do with the collected data. What do you think the relationship is?

(Linear, Exponential, Inverse??)

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Casio EA-100 Spécifications Page 11