Water is a valuable natural resource, and leaks can waste precious resources and money. In fact, 30-50% of the world's water is lost due to aging infrastructure and leaking pipes. Fortunately, there are several different ways to detect and locate these leaks. Some use acoustic methods, others rely on thermal changes in the surrounding soil and other use non-invasive, electromagnetic technology.
An acoustic leak detector works by listening to the vibrations caused by leaking water. These vibrations are heard as ground-borne noises, which acoustic sensors pick up and evaluate for volume and frequency. This information is then analyzed to determine the location of the leak.
The acoustic method also makes it possible to find leaks that would otherwise be difficult or impossible to locate using other methods. Acoustic sensors can be used on paved or unpaved surfaces and are also ideal for finding leaks in underground water pipe of any size. They can also be used to identify the locations of valves and hydrants. Acoustic sensors can even be used to find a leak in hard-to-reach areas such as inside walls or in corroded pipes.
Another type of leak detection device uses a flame ionization detector (FID). This sensor burns a sample, ionizing any gases present in it and generating an electronic signal that can be measured and recorded. It can be used to detect a variety of substances, including water, gas, and vapors.
Leak detection machines are also used in the medical profession. Lifesaving medicines are carried in plastic bags and other containers that must meet exacting standards. These devices test catheters, dialysis equipment, syringes, laparoscopic instruments, oxygen regulators and more to ensure they are leak proof.