NeuLog, 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. The frequencies of tuning forks and wind-chimes could be determined and simple electronic signal generators calibrated using it. With two sound sensors the velocity of propagation of sound in various media could 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. Experiment Duration: 25 milliseconds to 31 days.