Snímače malých frekvencí a malých amplitud

Abstract

This bachelor thesis deals with possibilities of sensing and measuring low frequencies at a distance. Using the methods described in this work, we really can not only sense these low frequencies, but also detect the direction of incoming waves and then classify them. The work is divided into six chapters, the first will discuss the general topic of electroacousticsin the second are divided and described in detail types of sensors, including their characteristics. The third chapter discusses wireless systems of sensors and radio transmission In the next chapter are described actual possibility of measuring frequency and an analysis of options determine the direction of incoming waves using an array of multiple sensors. The choice of appropriate sensors and design a custom solution using the unmanned aircrafts are described in the last chapter We can find the specifications of selected sensors, and the description of their advantages and application possibilities.