Edu-Logger Sound Logger Sensor

This sensor has two modes of operation. In slow mode it can be used to measure sound-pressure level in decibels. In fast mode it can be used to compare different sources of sound, their waveforms can also be displayed.

It can be used to determine the frequencies of tuning forks and wind-chimes and to calibrate simple electronic signal generators. With two sound sensors the velocity of propagation of sound in various media can be determined by timing a pulse travelling between them.

• The sound sensor is located in a plastic box accessible to the atmosphere via a hole in its side.