Texas Instruments CBR 2 manual Case of difficulty, If you have this problem Try this

Page 43

In case of difficulty

If you have this problem:

Try this:

Difficulty collecting data

Check for a poor calculator-to-CBR 2™ motion detector connection. Always push

 

 

 

in firmly on both ends of the cable.

 

 

Check for low batteries (see page 40).

 

 

 

The CBR 2™ motion detector

If you set down the CBR 2™ motion detector with the ¤ button face down,

begins collecting data by itself

the ¤ button may depress and activate sampling. Press ¤ again to

 

 

stop sampling.

 

 

Before storing the CBR 2™ motion detector, properly exit the EasyData App (using

 

 

Quit) or any other CBR 2™ motion detector or CBL 2™ system App.

 

 

 

The CBR 2™ motion detector

Press ¤ to stop sampling. Repeat sample. If problem continues, remove

doesn’t quit collecting data

one battery and put it back in. Note: Any data stored in the CBR 2™ motion

 

 

detector will be lost.

 

 

 

Communication Error

Attach the CBR 2™ motion detector to the calculator with the Standard-B to Mini-

 

 

A USB cable (unit-to-CBR 2™).

 

 

Check for a poor calculator-to-CBR 2™ motion detector connection. Always push

 

 

in firmly on both ends of the cable.

 

 

If you do not want to (or cannot) attach the CBR ™ motion detector to the

 

 

calculator, quit the EasyData App.

 

 

 

Insufficient memory

You must have sufficient memory for the EasyData App and the data lists.

 

 

EasyData needs 5000 bytes to run effectively. You need to delete items from the

 

 

calculator memory.

 

 

On the TI calculator, press yL2:Mem Mgmt./Del. Choose items to delete

 

 

and press DEL to delete the selected items.

 

 

 

Calculator doesn’t match activity

This guide applies to all the TI calculators that can load the EasyData App. You

instructions

may find that some of the menu names, screens, or keys in this guide do not

 

 

match exactly those on your calculator. If using Ranger, or other programs, choose

 

 

the closest match. For example, if the instructions say “Choose DISTANCE MATCH,”

 

 

on the TI-83 you would choose DIST MATCH.

 

 

 

Data doesn’t look right:

Repeat the sample, ensuring that the CBR 2™ motion detector is aimed directly at

0 points not on the curve

the object.

Read pages 6–9 on getting good data samples.

0

jagged plots

Check that the clear zone does not contain students, tables, or other objects.

0

flat plots

Check the position of the Sensitivity switch.

0

broken plot

When using two CBR 2™ units at the same time in the same room, one group

 

 

 

 

should complete a sample before the next group begins their sample.

 

 

Check for a poor calculator-to-CBR 2™ motion detector connection. Always push

 

 

in firmly on both ends of the cable.

 

 

Check for low batteries (see page 40).

 

 

 

Lost unit-to-CBR 2™ cable

You can use the I/O unit-to-unit cable that came with the calculator. (The unit-to-

 

 

CBR 2™ cable allows auto-launching of EasyData and a more reliable connection,

 

 

so you may wish to order a replacement cable.)

 

 

 

Frequently low batteries

Before storing the CBR 2™ motion detector, properly exit the EasyData App (using

 

 

Quit) or any other CBR 2™ motion detector or CBL 2™ program, and disconnect

 

 

the CBR 2™ motion detector from the calculator.

 

 

 

 

© 1997, 2004, 2006 TEXAS INSTRUMENTS INCORPORATED

GETTING STARTED WITH THE CBR 2™ SONIC MOTION DETECTOR 41

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Contents Getting Started with the CBR 2 Sonic Motion Detector Important notice regarding book materials Table of Contents What does the CBR 2 sonic motion detector do? What is the CBR 2 Sonic Motion Detector?What’s in this guide? With a range between Getting started with the CBR 2 Sonic Motion Detector DownloadImportant information RunGetting better samples Hints for effective data collectionClear zone Sample Interval Speed of sound Activity 1-Graphing Your Motion Notes for Teachers Objectives Activity 1-Graphing Your Motion LinearData collection Distance vs. Time Graphs TI-83/84 Family users TI-89/Titanium/92+/V200 Activity 1-Graphing Your Motion Linear Typical plot Activity 2-Match the GraphTypical answers Data collection Activity 2-Match the Graph LinearStudy the graph and answer questions 13, 14, ExplorationsActivity 2-Match the Graph Name Sample results Activity 3-A Speedy SlideExtensions Data collection, Part 1, Sliding Speed Activity 3-A Speedy Slide ParabolicActivity 3-A Speedy Slide Parabolic Activity 3-A Speedy Slide Parabolic Speedier Slide Plan Data Data collection, Part 2, a Speedier SlideData processing Activity 3-A Speedy Slide Explorations Activity 4-Bouncing BallAdvanced explorations Activity 4-Bouncing Ball Parabolic Distance-Time plot of the bounce forms a parabola Advanced explorationsHow do the data plot and the Yn graph compare? Activity 4-Bouncing BallActivity 5-Rolling Ball Activity 5-Rolling Ball Parabolic Answer question Activity 5-Rolling Ball Teacher Information L3n = = slope of Distance-Time plot Mathematics of distance, velocity, and accelerationAdditional resources Web-site resourcesSonic motion detector data is stored in lists Using the data listsCollected data is stored in lists L1, L2, L3, L4 in Ranger Changing EasyData settings EasyData Settings TI-83 and TI-84 Family CalculatorsRestoring EasyData settings to the defaults TI83/84 Family TI89/Titanium/92+/V200 1997, 2004, 2006 Texas Instruments Incorporated Batteries Case of difficulty If you have this problem Try thisBall Bounce Instructions EasyData Menu Map TI-83 and TI-84 Family CalculatorsCustomers in the U.S. and Canada Only TI Service and WarrantyTexas Instruments TI Warranty Information For US Customers OnlyAustralia & New Zealand Customers only FCC information concerning radio frequency interferenceAll Other Customers

CBR 2 specifications

Texas Instruments has long been a prominent player in the field of educational technology, and the CBR 2 (Calculator-Based Ranger 2) is a testament to their commitment to enhancing the learning experience, particularly in the realms of mathematics and science. Designed to complement graphing calculators, the CBR 2 is a versatile data-collection device that empowers students and educators to explore real-world phenomena through hands-on experimentation.

One of the main features of the CBR 2 is its ability to capture a wide array of data through various sensors. The device is equipped with an array of built-in sensors that can measure motion, including speed and distance. This makes it an invaluable tool for physics experiments, allowing students to visualize concepts such as speed, acceleration, and trajectory.

The CBR 2 utilizes ultrasonic technology to detect distance through sound waves. This feature enables students to conduct experiments that demonstrate principles of sound and motion in a tangible way. With a range of up to 6 meters, the CBR 2 provides accurate and reliable measurements that can be graphically represented using compatible Texas Instruments graphing calculators.

The device is highly user-friendly, with simple interfaces that allow users to easily collect and analyze data. The integration with graphing calculators simplifies the process of data visualization, enabling students to create graphs in real time as they conduct experiments. This capability is particularly beneficial in encouraging interactive learning and fostering a deeper understanding of scientific principles.

The CBR 2 is designed to be portable and durable, making it suitable for classroom settings as well as outdoor experiments. Its compact size and lightweight construction ensure that it can be easily transported, allowing educators to take learning beyond the confines of the classroom.

The CBR 2 also supports various modes of data collection, including Event Mode, which allows users to trigger data collection based on specific events. This feature is useful in demonstrating concepts such as projectile motion and collisions, providing students with hands-on experience that enhances their learning.

In summary, Texas Instruments' CBR 2 is a powerful educational tool that enables students to collect, analyze, and visualize data in an engaging manner. With its built-in sensors, ultrasonic technology, and seamless integration with graphing calculators, the CBR 2 stands out as a versatile device that enriches the educational experience. It not only provides a platform for conducting experiments but also cultivates critical thinking skills and a deeper understanding of scientific concepts, preparing students for a future in STEM fields.
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