Cover meter

A cover meter is like a special tool that helps people see inside things like walls or floors. It helps them know how thick the material covering something is.

When people build things like buildings or bridges, they need to make sure the materials they use are strong enough and the right thickness. The cover meter helps check this by sending little signals through the material to measure its thickness.

It's like when you knock on a door to see if it's solid or hollow. The cover meter does something similar, but it uses little waves instead of knocking. This helps people know if the material is thick enough and can support whatever is being built on top of it.

So, in a nutshell, the cover meter measures the thickness of materials like concrete or metal to make sure they are strong enough for building things on top of them.