Lablet can record experiment data using one or more Sensor Modules. The recorded data can then be analysed by a set of Analysis Modules. Furthermore, sensor and analysis modules can be embedded in Lab Activities.
Sensor Modules
Currently, Lablet supports three different sensors:
- Camera
- Microphone
- Accelerometer
However, in the future we plan to support more sensors.
Analysis Modules
Motion Analysis
Tagging an object in a video.
The motion analysis module can be used to investigate the trajectory of a moving object in a video; the investigator would step through the video and tag each frame. The velocity and acceleration of the moving object can be computed, and students can plot the resulting data on the tablet. Possible exercises range from simple trajectory analysis, studies of gravitational acceleration, to studies of drag and friction, or explorations of relationships between kinetic and potential energy.
Frequency Analysis
Frequency analysis of a recorded audio file.
The frequency analysis module is used to analyse recorded audio data. Lablet displays the Fourier transformation of the recorded data. This can be used for Doppler shift and similar experiments.
Accelerometer Analysis
Accelerometer data taken in an elevator going downwards.
The accelerometer analysis module is used to investigate 3D acceleration data. Lablet integrates these data in order to display velocity and displacement graphs.
Lab Activities
The Auckland Lablet supports “electronic” lab pamphlets with information and instructions to guide students through a complete lab activity performed with a tablet. Teachers can widely customise a lab activity by editing a simple script file. A rich set of components and layout options are provided, including sensor and analysis modules, text questions, check boxes and special components such as worksheet where students learn to calculate velocity and acceleration from the raw data.
Question sheet in a Lab Activity.