A monitoring unit comprising an Arduino Uno microcontroller that is connected to a pressure sensor, a pH sensor, and a temperature sensor to measure the process parameters was incorporated into the system. The results obtained validate the direct relationship between the organic load index and biogas...
Both the carrier wave frequency and chip rate determine the frequency range of the SSSound (Figure 1b). Figure 1. Generation (a) and frequency range (b) of Spread Spectrum Sound (SSSound). The generation of SSSound s(n) can be described by the following equation: 𝑠(𝑛)=sin(2...