Back to my science roots – data logging on the iPad

I seem to have spent a lot of time recently with my iPad and some other toys exploring how the iPad can be successfully integrated into the science classroom.

There are a growing range of peripherals for the iPad (I’m sure I read somewhere that the iOS peripherals market is worth more than the iOS market itself) and there are some that are particularly enticing for the science classroom.

Datalogging is an area of technology that traditionally science has always made use of. Back in the days of BBC computers, black boxes called LogIT’s allowed collection and graphing of a whole variety of experimental data and most schools have a range of equipment for data collection from simple digital thermometers to whole ranges of specialist datalogging equipment.

In my eyes, one of the big problems with many datalogging solutions is that they usually consist of a base unit which you plug sensors (available separately) into to record different types of data. This means costs can soon mount up.

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The labdisc by Globisens takes a different approach. All of the sensors are built in to the data logging unit itself. There are 5 different models of labdisc all of which have 12 to 14 sensors built in. The different models cover a range of specialist areas such as biochemistry and higher level physics, while more general needs are taken care of by other models.

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See Labdisc in action in this video “A Walk in the Park”.

Originally designed for use with Mac or PC computers, Globisens have put much thought into developing an iPad app and bluetooth connectivity. The well thought out app is called Globilab and is available for free from the App Store.

Get the app here

Globilab app icon

I’ve had the pleasure of using these extensively, and they work really well with the iPad. The user interface of the app is well thought out, allowing programming of the various sensors using on/off switches and rate and number of samples can also be set within the app (with some sensors it is possible to capture up to 25,000 readings per second). There is a nice feature to manually capture samples by pressing one of the buttons on the front of the Labdisc. Data can be exported as a csv file should you need to further analyse data, and the app itself is capable of both linear and quadratic regression curves.

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Another nice feature of the Labdisc is built in GPS making it perfect for recording data on field trips for example. The app displays data graphically on the map too.

Labdisc GPS

Even if you don’t yet have a Labdisc you can download the free app, and use the built in accelerometers and microphone in your iPad. Measure and record noise levels in the classroom throughout the course of a day, or combine your iPad with a Grip Case (more about these great cases in a future post) and a length of rope to do great pendulum experiments, or with a spring to investigate Hooke’s law.

At around $500 the Labdisc is not the cheapest tool you will ever buy for use with your iPad but with practical uses in Science and Geography from primary right through secondary, these valuable peripherals really help to maximise investment in mobile devices such as iPads.

We have recently invested in a set of 20 and I look forward to seeing how they are used across the science and geography curriculums and on various field trips over the coming months….I’ll keep you posted.