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This paper presents an electro-acoustic instrument, used in geophysical (seismic) prospecting, for the reception of sound waves, namely the geophone. The geophone is a transducer which transforms the displacement of the soil particles into electrical signals. The article aims at presenting the functioning of a standard electromagnetic geophone and of the newer geophone models, built using the MEMS (micro-electro mechanical systems) technology. Below, a scheme for amplifying the original signal generated by a SM-24...

In this article, we will present the types of seismic waves, how their collection is performed and their preparation for analysis and processing. Understanding these aspects can help improve in future any stage of the process, by using new hardware and/or software equipment, in continuous development around the world. There are three steps in seismic exploration of the ground. The first one is seismic data acquisition which is done in a specific location, ground or water, using a seismic source. The seismic wave g...