Acoustic sensing is a technology that uses sound waves to detect and measure various physical properties in the environment. It works by emitting sound waves and analyzing the echoes that return after bouncing off objects or surfaces. This method can be used in various applications, such as monitoring structural integrity, detecting leaks, or even locating underwater objects. The technology relies on the principles of ultrasonics and sonar, which are commonly used in fields like engineering and marine exploration. By interpreting the data from the sound waves, researchers and engineers can gain valuable insights into the condition and characteristics of materials and environments.