Collect

Graph

Analyse

Datalogging with Vernier

Fantastic!

Les BlackMobile 027-2211365

www.electroflash.co.nz

Meet the Verniers

David was a physics teacher, who:

• Wrote software for PASCO.

• Created “Graphical Analysis”.

• Wanted to make datalogging available & affordable for all.

• Makes probes for many datalogger companies.

• Uses teachers to develop & test products.

• Makes the most reliable and useful datalogging systems.David and Christine Vernier

Go! Series

• USB connect

•Loggerlite Software

•Click & log

Loggerlite

LabQuest Mini

- interface

LabQuest mini interface

Sensor

LoggerPro

software

LoggerPro

Install probe – auto recognition!

Press start (adjust settings if

necessary)

Stop (graph will auto scale)

Analyse (on colour screen or on computer)

Totally portable …. Rechargeable battery …. Save files to the logger

Full graphical analysis …. Colour screenLoggerPro

LabQuest

- a totally portable logger

Or try the Wireless Dynamic System.

Collect data on Labquest

Out of the classroom …remote logging

Save data file into LabQuest Connect to a computer.

Connection will be recognised

and data downloadedConnect to computer and automatically download file.

Analysis of data

LoggerPro

Just

fabulous!

Error bars– YES! percentage, absolute, variable

Enter your data manually or via a logger then….

Manual analysis

Predict relationship from graph shape Change the power of a variable Convert to a linear graph y=mx + c

Software modeling

Get LoggerPro to do it for you. Eg Analyse / curve fit / define relationship

Support MaterialExperiment manuals

• Written by teachers for the US education system.

• Supplied with disk of files in Word format

(great for cutomising for our schools).

• Each experiment has a file in LoggerPro which

sets up data collection automatically

Experiments with dataloggers .

• Biology – “Cell Respiration video”

• Chemistry – “Acid-BaseTitration video”

• Physics – “Ball Toss video”From Vernier support disk

Support examples

All experiments in the manuals link to a file in LoggerPro software to automatically set up the collection rate & graph(s).

Strategies to deepen learning• Prediction (drawing graph patterns)

• Graph matching (walk the graph)

• Comparisons

• Defining a relationship

• Voice printing (and FFT)

• Interactive demonstrations

• Video analysis • Use as an oscillosope & frequency generator

Interesting questions! ….. and student designed investigations.

• Why do voices sound different when singing the same note?

• How can I accurately measure the speed of sound?

• Would an adult or a baby suffer from hypothermia first?

• How effective is penguin behaviour in keeping each other warm?

• How quickly do streams cool in cold air temperatures?

• Does the temperature of a fridge vary throughout a day?

• What clothing fabrics best protect us from heat loss?

• What rides give us the greatest acceleration?

• What substances are the most radioactive?

• How can I show standing waves?

• How do transpiration rates differ between plants?

• Appeal to many students

• Remove the boredom of some measurements.

• Improve accuracy of measurements

• Improve analysis

• Enable some measurements to be made (that couldn’t

be done in any other way).

• Makes results real and immediate

• Tufts University research + interactive demonstrations

* Outcomes

* Strategies

Are dataloggers value for money?

And now for some ….

Interesting applications!

Spectrophotometer SVIS-Plus - For spectral analysis

Gas discharge tube

Emission spectra

Magnetic Field- Magnetic field through a slinky carrying a current

• Shape of field• Variation of B with current• Turns density

…. etc

Is Acceleration related to thrill level?

Check these out using an accelerometer!

Rotational Dynamics- Rotational inertia of various shapes

Outcome: Get the angular velocity- time graphs directly!

Standing waves using the LabQuest’s output to drive a speaker and string in oscillation.

Standing waves, modes of vibrations and wave speed

Light Sensor- Inverse square Law

- Light and reflection and heat absorption

Sound waves

Sound from a tuning fork

Using FFT to analyse a sound into its component frequencies

Standing waves and speed of sound experiments

Also excellent for BEATS

• Detection (alpha, beta and gamma)

• Spectrum of emission levels

• Effectiveness of Shielding

• Decay curve

• Identification of radioactive materials

Radioactivity