What is the name of the isolation chamber that you float in the brine solution, were no light-noise intrude?

In the cruise movie ';Minority Report'; the ';precogs'; float in some type of liquid suspension chamber. I have heard of people having a similar type thing for there own use. The one that I heard about (saw in movie..I forget) was metal, you floated in a brine solution, and was light an sound proof.What is the name of the isolation chamber that you float in the brine solution, were no light-noise intrude?
It's called a sensory deprivation chamber - very popular in the 1980s.