Part 5/8:
Delving into technical innovation, the speaker discusses modifying the internal structure of these sensors for enhanced energy output. One approach involves layering ultra-thin wafers of frosted quartz or glass, created using hydrofluoric acid etching, to form a core that boosts the device's resonance at targeted frequencies—around 18.5 kHz. This process, which was used in naval sonar systems, demonstrates the potential to generate significant electrical volts—up to three volts from a core comprising fifty wafers—culminating in a practical setup that can produce 28 volts over several years.