DrDAQ is a versatile instrument that connects to the USB port of any PC. Using the supplied PicoScope software it can be used as an oscilloscope, spectrum analyzer and signal generator.
Trace from experiment 1
This graph shows that there is a direct relationship between road traffic noise and time of day. The sound level is highest on Saturday 29th June.
Trace from experiment 2
This graph shows the sound level over a 2 minute period. The peaks on the graph are vehicles passing by.
Safety notice: children must be well supervised and briefed on road safety if experimenting near roads. These experiments should preferably be done by suspending the DrDAQ unit out of a building window that faces a road.
Credits, comments and further info
This experiment was written by Pico Technology.