gas detection cathrometers
hydrogen sulphide...
Helium is generally used; special spectrometers to detect helium leakage are designed.
Helium is used to detect leaks.
flux meter
Not sure about chemical? But there are highly sensitivity alarm metres for detecting the leakage of liquid petroleum gas (LPG, butane, propane etc), and natural gas. One method I once used to find a leaking joint on a gas cooker was to apply washing-up liquid round the joints until a joint bubbling up pin-pointed the leak.
Technology can be used to detect diseases before they get too serious.
A chemical called Ethyl Mercaptan is added to LPG to give it a distinct odor, making it easy to detect leaks. This pungent smell is similar to that of rotten eggs, making any leak quickly noticeable to users.
GUI (Graphical User Interface)?
ELDB stands for Earth Leakage Detection and Breaker. It is a device used in electrical systems to detect any leakage of current to the earth, which could be potentially dangerous. When a leakage is detected, the ELDB will trip the circuit breaker to cut off the power supply and prevent any electrical accidents. This is especially important in ensuring the safety of individuals and protecting electrical equipment from damage.
Hydrogen gas makes the 'pop test' when it is ignited, producing a distinctive popping sound. This test is commonly used to detect the presence of hydrogen gas.
Doppler weather radar is used to detect microbursts. This radar technology can identify the presence of strong downdrafts associated with microbursts by measuring the velocity and direction of wind. By analyzing these radar data, meteorologists can issue timely warnings to help prevent potential hazards to aviation and other affected areas.
Airplanes do not use sonar waves. Sonar is a technology primarily used underwater to detect objects or measure distances by emitting sound waves. Airplanes generally use radar technology to detect and track objects in the sky.