Density gauges are used where automatic control of a liquid, powder, or solid is important, for example as in detergent manufacture.Radioisotope instruments have three advantages: There are two broad types of nucleonic gauges used in industry: fixed and portable.
The ability to use radioisotopes to accurately measure thickness is widely used in the production of sheet materials, including metal, textiles, paper, plastics, and others.
The attributes of naturally decaying atoms, known as radioisotopes, give rise to their multiple applications across many aspects of modern day life (see also information paper on The Many Uses of Nuclear Technology).
Radioisotopes are used by manufacturers as tracers to monitor fluid flow and filtration, detect leaks, and gauge engine wear and corrosion of process equipment.
Radiotracers are also used in the oil and gas industry to help determine the extent of oil fields.
Radioactive materials are used to inspect metal parts and the integrity of welds across a range of industries.