A self-powered sensing system. The sensing system may include a power generator at least partially disposed in a diamond composite heat sink configured to harvest energy from a hazardous environment. The sensing system may further include an energy storage device operatively coupled to the power generator. The sensing system may also include at least one sensor operatively coupled to the energy storage device and a sensor antenna operatively coupled to the at least one sensor. The sensor antenna may be configured to transmit information collected from the at least one sensor to an operation system. The at least one sensor may include a resonance tube having a three-dimensional lattice structure.