Stethoscope for sound sensor

A stethoscope consists of a membrane connected to an extension. The membrane is mounted under tension and is used to conduct the sound vibrations. When the membrane is held to a surface such as the skin, the membrane vibrates according with the surface. In this way the membrane conducts sound waves to the inner part of the stethoscope and to amplifier.

The Sound sensor with the Stethoscope can be used for the following experiments:

Record heartbeats
Determine the heart rate
Together with a Blood Pressure sensor record the circulatory sounds
Together with an ECG sensor and/or a Heart rate sensor different measurements of the heart can be compared to analyse the entire heart cycle and the blood flow
Record sounds in solids
Determine the speed of sound in different gases or solids.